Centerline CUH-130363 Commercial Dishwasher

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

Centerline Models  

Ecoline Models  

CUH  

CUL  

ML-130363  

ML-130364  

EUH  

EUL  

ML-130377  

ML-130378  

Commercial Dishwasher  

Installation and Operation Manual  

F-041138  

August 2022  

Ver3.0  

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	Centerline CUH-130363 Commercial Dishwasher
Make	Centerline
Language	English
Filetype	PDF (Download)
File size	0.75 MB

Download PDF

(1 votes, average: 5.00 out of 5)

Loading...

• ALL DISHWASHER INSTRUCTIONS & USER MANUALS
• Centerline

Centerline CUH-130363 Commercial Dishwasher Overview

Summary of Contents

• Page 1: Centerline models Ecoline models Commercial dishwasher Installation and operation manual
• Page 2: Machine installation checklist Machine serial number Machine contents verified Peg rack Combination flat rack Literature pack Drain hose Water supply hose Small parts pack Chemical hookups completed
• Page 3: Installation and operation manual for CENTERLINE ECOLINE. Notes on the documentation include application, layout, representative convention, and symbols used. Safety instructions and regulations cover safety instructions, hazard levels, and basic safety instructions. Product description outlines intended purpose, designation, and technical specifications. Controls are referenced in the operations section. Installation details include personnel qualification, special safety instructions, and transporting to the installation location. Instructions for removing packaging and installing the machine are provided. Connecting to the power supply and electrical data are discussed. Electrical connection methods and transformer connections are specified. Water requirements and connections are outlined.
• Page 4: Installation and operation manual Water connection Connecting the drain Attaching drain hose to machine Chemical supply set up Personnel qualification Preparing the chemical supply tubing Attaching the sanitizer chemical level sensor to the sanitizer tubing Operation Special safety instructions
• Page 5: Installation and operation manual for CENTERLINE ECOLINE. Switch off machine. Daily cleaning or after each meal period. Weekly cleaning. Removing hard water deposits (deliming). Delime notification (CUH and CUL only). Overview of operator menu. Opening the operator menu. Detergent dispensing. Display of errors and information.
• Page 6: Installation and operation manual Troubleshooting guide Poor wash results Other faults Maintenance Disposal Product disclaimer Notes
• Page 7: Notes on the documentation This document contains important information for the installation and startup of the machine by qualified personnel, as well as the information required for day-to-day operation by the operator. Keep the operating instructions and all referenced documents in a safe and accessible place. This Installation and Operations manual is subject to change. Referenced documents are all instructions that describe the installation, operation, maintenance, and repair of the device, as well as additional instructions for all accessories used. For the operator: Operating instructions. For the qualified technician: Installation instructions, Circuit diagram, Spare Parts Catalog. Warning of hazardous electrical voltage. Beware of hazardous substances. Beware of hazard area. Useful additional information and tips.
• Page 8: Installation and operation manual Important information on machine operation, not a warning notice. During machine operation, observe the general safety instructions and warning notices that precede each action. The hazard level is part of the safety instructions and is denoted by the signal word. Potentially hazardous situation can cause serious physical injury. Potentially harmful situation can cause damage to the product or other objects. Warning notices are depicted with warning symbols and signal word in the corresponding safety colors. The machine conforms to state-of-the-art technology and the recognized safety regulations. Operate the machine only if it is in good working order and in compliance with the operating instructions.
• Page 9: Installation and operation manual Personnel qualification Observe the regulations on occupational health and safety. Carefully read through the operation manual before use. Qualified electrician and plumber are needed for installation/setup. Maintenance and repair should be performed by a qualified electrician or service technician. Product-specific hazards Observe the instructions on the packaging for storage, lifting, or transporting. Avoid electric shock and risk of fire by ensuring water does not flow under live components. Have the machine connected to the power supply by qualified personnel. Wear protective equipment when handling chemicals and use only suitable chemicals. Avoid frost damage by emptying residual water before storing below 32°F (0°C).
• Page 10: Product description The machine is an item of technical equipment intended solely for commercial dishwashing. The machine is designed solely for cleaning ware from the food industry. The rating label is located on the right side of the machine. If you have any questions regarding service and parts, use the serial number in all communications. Technical specifications include model dimensions and water consumption per cycle. Hot water connection requirements are specified. Voltage and total connected load details are provided. Fuse/breaker protection information is included. Tank capacity and loading height are outlined. The machine weight is noted.
• Page 11: Installation and operation manual for CENTERLINE ECOLINE. Controls section references operations section 6.7. Power/drain button switches the machine on and activates self-cleaning cycle. Start button initiates the wash cycle and activates extended wash cycle if pressed a second time. Menu button enters the configuration menu. Delime button initiates the deliming cycle. Temperature display shows wash tank temperature during idle or wash cycle. Temperature display for rinse shows temperature only during rinse cycle. Installation must be carried out by qualified personnel. Special safety instructions warn of risks such as electric shock and fire hazards.
• Page 12: Installation and operation manual Frost damage Temperatures below 32°F (0°C) during transport/storage cause function impairments. Prior to installation, store machine at room temperature (min. 60°F) for 24 hours. Where possible transport packed on the pallet. Use suitable transport means (forklift or hand truck, etc.). Remove packaging materials and accessories from the machine. Immediately after unpacking the dishwasher, check for possible shipping damage. If this machine is found to be damaged, save packaging materials and contact the carrier within 5 days of delivery.
• Page 13: Installation and operation manual for CENTERLINE ECOLINE. Prior to installation, verify that the electrical supply agrees with the specifications on the machine data label. Wall clearance is not required. Install the provided feet in each of the bottom corners of the machine. The machine must be level to operate properly. Level the machine before any connections are made using a carpenter's level. Cover the exposed threads of the adjustable feet with the supplied rubber tubing after leveling. Wood, laminates, veneers, etc. are unsuitable materials for use in areas exposed to dishwasher steam and detergents. Electrical and grounding connections must comply with the applicable portions of the National Electrical Code. Disconnect the electrical power to the machine and follow lockout/tagout procedures.
• Page 14: Installation and operation manual for the Centerline Ecoline. Complied in accordance with the National Electrical Code NFPA-70, latest edition. For supply connections, use copper wire only rated at 90°C minimum. The dish machine is not provided with internal GFCI protection. Refer to the data label on the lower, right side of the machine for proper selection. Remove the lower front panel by removing the two screws at the bottom of the panel. Remove control board bracket and chemical pump bracket nuts.
• Page 15: Installation and operation manual for CENTERLINE ECOLINE. Lower control board bracket and chemical pump bracket allow access to terminal block 1TB. A hole for 1” trade size conduit is supplied at the lower left in the back of the machine. Install 1” trade size conduit or cable and fitting. Leave at least four feet of electrical line between wall connection and machine. This allows the machine to be pulled away from the wall for cleaning and/or servicing. Make electrical connections according to the wiring diagram supplied with the machine. Secure wires to the machine service connection. Keep excess wire in the base of the unit to a minimum. A cable support is supplied to facilitate wire routing.
• Page 16: Installation and operation manual 208V or 240V electrical connections for the CUH machine require two hot wires and a ground. There is no current carrying neutral used. For the CUH and EUH machines, a control transformer is used to step the 208V or 240V incoming power to 120V for the control circuitry and drain pump. The transformer is factory-preset to 240V. For 208V incoming power, relocate the 1T-H wire on the transformer from the 240V terminal to the 208V terminal. Access transformer by tipping machine up and removing bottom panel. An incorrectly connected transformer can lead to machine draining issues.
• Page 17: Installation and operation manual for CENTERLINE ECOLINE. The machine must be operated with potable water. Proper water quality can improve ware washing performance by reducing spotting and enhancing effectiveness. Recommended water hardness is 3 grains of hardness per gallon or less. Higher hardness may cause excessive formation of lime scale. Water treatment can reduce costs associated with machine cleaning and detergent usage. High iron levels in the water supply can cause staining and may require an iron filter. A water hammer arrestor should be installed in the common water supply line. Water lines must be thoroughly flushed out before connecting to the dishwasher. Debris not removed may render plumbing components inoperative. A manual shutoff valve should be installed upstream of the fill hose for servicing.
• Page 18: Installation and operation manual for Centerline Ecoline. A water supply hose is provided. Temperature requirements: CUH and EUH must be a minimum of 110°F (43°C), while CUL and EUL must be a minimum of 120°F (49°C). Water hardness should not exceed 3 grains. Flowing pressure must be between 15 psi and 65 psi (1 bar – 4.5 bar). If pressure exceeds 65 psi (4.5 bar), a pressure regulating valve is required. If pressure is below 15 psi (1 bar), improper machine operation may occur. The water pressure regulator must have a relief bypass to prevent damage to the unit. Plumbing connections must comply with applicable sanitary, safety, and plumbing codes. Do not kink or cut the water supply hose.
• Page 19: Installation and operation manual for CENTERLINE ECOLINE. Attaching drain hose to machine involves removing screws from the rear cover panel and attaching the drain hose to the drain elbow with a hose clamp. The elbow should be turned to the needed direction for the drain hose. The connection between the machine and site drain must not exceed a maximum height of 34 inches above the finished floor. The drain must have a minimum flow capacity of 5 gallons per minute. Leave at least four feet of drain hose between the wall connection and machine for cleaning and servicing. A pumped drain air gap kit is available using accessory code PUMPDRN-AIRGAP. Refer to installation instructions included with the kit. Use care not to kink the drain hose.
• Page 20: Installation and operation manual An improper drain connection or a kinked hose could result in reduced machine performance and errors. An air gap connection is the preferred connection method. Set up must only be carried out by qualified personnel. Locate the chemical tubing attached to the rear of the machine. Remove the nylon quick-tie holding the chemical tubing to the rear of the machine. Separate the tubing corresponding to the chemical labels. The clear tubing with the attached filter and yellow detergent label corresponds to detergent. The blue tubing with the attached filter and blue rinse agent label corresponds to rinse aid. The clear tubing with either the cut end or the attached filter without a label corresponds to sanitizer.
• Page 21: Installation and operation manual for CENTERLINE ECOLINE. Preparing sanitizer chemical level sensor (CUL only). Attaching the sanitizer chemical level sensor to the sanitizer tubing. Locate the sanitizer chemical level sensor that was packaged with the CUL machine. The sanitizer chemical level sensor will have a blue stopper and blue sensor wire. Push the clear sanitizer tubing all the way onto the stem end of the sanitizer chemical level sensor. Connecting the sanitizer chemical level sensor control wire to the machine. Locate the chemical level sensor electrical connectors plugs on the back of the machine. Remove the electrical jumper plug from the sanitizer sensor connection. Installing optional detergent and rinse aid chemical level sensors.
• Page 22: Installation and operation manual Installing optional sanitizer chemical level sensor Connecting the chemical level sensor to the sanitizer tubing Refer to instructions supplied with the chemical level sensor accessory kit. Setup of external chemical bottles The suction height of the detergent, rinse aid, and sanitizer pumps: max. 5 ft Standard detergent and rinse aid suction tubes Place clear suction tubing marked for detergent at the bottom of the external detergent bottle/bucket. Place blue suction tubing marked for rinse aid at the bottom of the external rinse aid bottle/bucket. Optional detergent and rinse aid chemical level sensors Adjust the stopper on the chemical level sensing wands to seal to the bottle or bucket.
• Page 23: Installation and operation manual for CENTERLINE ECOLINE. Standard sanitizer suction tube instructions include placing clear suction tubing at the bottom of the external sanitizer bottle or bucket. Preparing the sanitizer for the CUL machine involves ensuring the suction height of the sanitizer pump is a maximum of 5 ft. The sanitizer chemical level sensing wand must be placed into the external bottle or bucket with the float end touching the bottom. Adjust the stopper on the sanitizer chemical level sensing wand to seal to the bottle or bucket. Ensure the sanitizer chemical level sensing wand is correctly inserted into the container with the float sensor at the bottom. Optional sanitizer chemical level sensor instructions are provided for the EUL machine. If the optional sanitizer chemical level sensing wand is installed, it should also be placed into the external bottle or bucket with the float end touching the bottom. The wand will have a blue stopper and electrical wire. Make sure the sanitizer chemical level sensing wand is correctly inserted into the container with the float sensor at the bottom.
• Page 24: Filling the chemical tubing with detergent, rinse aid or sanitizer for the first time incorrectly can cause serious injury. Wear protective equipment when handling chemicals. The machine must be operated by qualified personnel. If the door is opened during operation, wash water can spray out and cause injury. Do not open the door during operation, wait for the cycle to finish. The rinse result is significantly affected by the water quality. Recommended water hardness is 3 grains of hardness per gallon or less. Higher hardness may cause excessive formation of lime scale. Water hardness above 3 grains per gallon requires water treatment. If you have any questions, please contact your authorized service partner.
• Page 25: Preparation for washing Check correct position of pump strainer and tank strainers and proper installation of upper and lower wash/rinse arms. Open building water shut-off valve. Turn on main switch, breaker, or insert the plug. Check level of detergent and rinse aid in containers. For CUL machine, check level of sanitizer in container. For EUL machine, check that there is sanitizer present. Close door. Press the Power/Drain button. During the filling and heating processes, the Power/Drain button LED flashes. As soon as the LED is permanently lit on both the Power/Drain button LED and the Start button LED, the machine is ready for operation.
• Page 26: Installation and operation manual Preparing the ware for washing Remove heavy food residue. Load ware into rack. Rinse off ware. Washing Open door. Slide rack into the machine and close the door. Press the Start button. The wash temperature is shown in the upper display for the entire cycle. Allow the ware enough time to dry.
• Page 27: Installation and operation manual for CENTERLINE ECOLINE. For heavier soiled ware, the wash cycle time can be extended by up to 4 minutes. To extend the washing time, start a normal 2-minute washing cycle by pressing the Start button and within the first 10 seconds of the cycle starting, press the Start button a second time. While the extended washing cycle is running, both the Start button LED and the Menu button LED flashes. As soon as the Start button LED lights up permanently, the rinsing process is complete, and the cycle ends. To switch off the machine, press and hold the Power/Drain button for 3 seconds. During draining, the display will show “drA in” and the Power/Drain button LED flashes. During draining, the machine interior is rinsed automatically, and the tank and booster are emptied. At the end of the draining cycle, the machine switches off automatically. When the machine has switched off, remove any heavy food residues and turn off the main switch or remove the plug.
• Page 28: Installation and operation manual Daily cleaning or after each meal period The use of unsuitable agents can cause corrosion damage. Do not use any bleach, acids, or metal-containing additives to clean the machine. Do not use metal brushes. Open the door, remove tank, and pump strainers. Rinse under running water. Make sure that food debris does not enter pump intake when the pump strainer is removed. Clean machine interior. Replace pump and tank strainers. Allow time for interior to dry. Weekly cleaning
• Page 29: Installation and operation manual for CENTERLINE ECOLINE. The dishwasher should be delimed on a regular basis as required. Deliming should be done when you can see clear signs of lime deposits. Inspect the machine interior for lime deposits. A deliming agent should be used for best results. Deliming solution must not come in contact with bleach. The CUH and CUL machines are equipped with an automatic delime cycle reminder. It is recommended that deliming be done when the Delime button LED is flashing. Deliming can be initiated at any other time if deemed necessary. Machine must be on and at a ready state before starting the delime procedure. Open the door, remove tank strainers, rinse under running water, and replace them.
• Page 30: Installation and operation manual for CENTERLINE™ ECOLINE™. Press and hold the delime button for a minimum of 3 seconds. The upper display will show “SdL” to indicate that the delime cycle has started. The machine will enter a drain and rinse phase. During this phase, the delime button LED will be lit continuously. The deliming cycle can take 30 minutes or more to complete. When ready to add deliming agent, the upper display will show “Add”. Add the correct amount of deliming agent to the tank according to the manufacturer’s instructions. Use only commercial deliming agent and observe the manufacturer’s application and safety instructions. Warning: Chemical burns and irritation of the skin may occur from unsuitable chemicals.
• Page 31: Installation and operation manual for Centerline Ecoline. The deliming process will continue with the delime button LED lit continuously. The upper display will show “dL”. When the deliming phase completes, the machine will enter a drain and rinse phase. After the deliming process is completed, the machine will drain and shut down. Overview of operator menu for CUH / EUH (High Temperature Sanitizing Machine). Settings include extended wash time, number of wash/rinse cycles completed, and detergent concentration. Functions also include priming detergent and rinse aid pumps, setting temperature display units, and internal functions. Software version and machine type are displayed in the settings. This document includes detailed operational settings for effective machine use.
• Page 32: Installation and operation manual for the CUL/EUL (Chemical Sanitizing Machine). Extended wash time function allows setting of extended wash time. Cycle count displays the number of wash/rinse cycles completed. Detergent setpoint is for setting detergent concentration. Detergent pump prime primes the detergent pump. Rinse aid setpoint is for setting rinse aid concentration. Rinse aid pump prime primes the rinse aid pump. Sanitizer setpoint is for setting sanitizer concentration. Software version indicates the machine type. To access the operator menu, the machine must be in a ready state.
• Page 33: Installation and operation manual for CENTERLINE ECOLINE. Extended wash time is applicable for CUH and CUL models only. The top display shows 00 when setting the extended wash time. Press the Menu button to edit settings. The bottom display shows the current extended wash setting in minutes, with a default of 4 minutes. Extended wash setting can be adjusted from 3 to 6 minutes in 1-minute intervals. To increase the time, press the Menu button. To decrease the time, press the Delime button. To save and exit edit mode, press the Start button or open and close the door. This document is version 3.0, dated August 2022.
• Page 34: Cycle count Top display shows “01” Press the Menu button to display the cycle count Bottom display shows first 3 digits of the 6-digit cycle count number Press the Menu button a 2nd time Bottom display shows last 3 digits of the 6-digit cycle count number To exit the cycle count menu, either press Start Button to move to next item or open and close door Will also exit operator menu
• Page 35: Installation and operation manual for CENTERLINE ECOLINE. Detergent dispensing amount can be set from 0.0 g/L to 9.5 g/L in 0.5 g/L increments. Top display shows “02” for setting detergent dispensing amount. Bottom display shows current detergent dispensing settings in g/L, with a default of 2.0 g/L. To increase dosage by 0.5 g/L, press the Menu button. To decrease dosage by 0.5 g/L, press the Delime button. To save and exit, press the Start Button or open and close the door. Top display shows “03” for priming detergent dispensing pump. Bottom display shows “0” during priming. Document version is Ver3.0, dated August 2022.
• Page 36: Installation and operation manual Press the Menu button to change bottom display value to “1”. Press delime button to begin detergent dispensing pump priming. The detergent dispensing pump will activate for 60 seconds. The decimal point in the bottom display will flash while the dispensing pump is on. Verify the detergent is moving from the detergent bottle or container to the machine through the tubing and that there are no air bubbles in the tubing. The priming process might need to be repeated at least 2 times to fully prime the machine. To exit the priming menu, either press Start Button to move to next item or open and close door.
• Page 37: Inspect detergent container for chemical present. Verify that the supply tube is correctly inserted with the suction filter at the bottom of the container. If air bubbles are present in the detergent line, prime. Make sure the bottle level sensor is correctly inserted into the container with the float sensor at the bottom. Top display shows “04”. Bottom display shows current rinse aid dispensing settings in g/L: (default = 0.6 g/L). Note: 0.1 g/L ≈ 0.33 mL/cycle.
• Page 38: Installation and operation manual. Rinse aid dispensing amount can be set from 0.0 g/L to 2.0 g/L in 0.1 g/L increments. To increase dosage by 0.1 g/L, press the Menu button. To decrease dosage by 0.1 g/L, press the Delime button. To save and exit, either press Start Button to move to next item or open and close door. Top display shows “05”. Bottom display shows “0”. Press the Menu button to change bottom display value to “1”. F41138 (August 2022). Ver3.0.
• Page 39: Installation and operation manual for CENTERLINE ECOLINE. Press delime button to begin rinse aid dispensing pump priming. The rinse aid dispensing pump will activate for 120 seconds. Verify the rinse aid is moving from the detergent bottle or container to the machine through the tubing and that there are no air bubbles in the tubing. The priming process might need to be repeated at least 2 times to fully prime the machine. To exit the priming menu, press Start Button or open and close the door. Inspect rinse aid container for chemical present. Verify that the supply tube is correctly inserted with the suction filter at the bottom of the container. If air bubbles are present in the rinse aid line, prime as needed.
• Page 40: Installation and operation manual Inspect rinse aid container for chemical present. Make sure the bottle level sensor is correctly inserted into container with float sensor at bottom of container. If air bubbles are present in rinse aid line, prime. Setting sanitizer dispensing amount. Top display shows “06”. Bottom display shows current sanitizer dispensing setting in % concentration: (default = 50%). Sanitizer concentration dispensing amount can be set from 20% to 100% in 10% increments. Sodium hypochlorite solution (bleach) concentrations listed. Sanitizer concentration PPM values provided.
• Page 41: Installation and operation manual for CENTERLINE ECOLINE. To increase dosage, press the Menu button. To decrease dosage, press the Delime button. To save and exit, press Start Button or open and close door. Deliming solution must not come in contact with bleach. Mixing may cause hazardous gas to form. Do not prime sanitizer pump while in the delime process. Top display shows “07”. Bottom display shows “0”. Page 41 of 50.
• Page 42: Installation and operation manual Press the Menu button to change bottom display value to “1”. Press delime button to begin sanitizer dispensing pump priming. The sanitizer dispensing pump will activate for 140 seconds. The decimal point in the bottom display will flash while the dispensing pump is on. Verify the sanitizer is moving from the sanitizer bottle or container to the machine through the tubing and that there are no air bubbles in the tubing. The priming process might need to be repeated at least 2 times to fully prime the machine. When the ball in the sanitizer float sight has moved above the “EMPTY” line, the sanitizer has been fully primed and is ready.
• Page 43: Installation and operation manual for CENTERLINE ECOLINE. To exit the priming menu, press the start button or open and close the door. Inspect the sanitizer supply for CUL by checking the sanitizer bottle for chemical presence. For EUL, verify that the ball in the sanitizer float sight is above the EMPTY line. If the ball is below the EMPTY line, inspect the sanitizer container for chemical presence. Prime the sanitizer line if needed. Ensure the supply tube is correctly inserted with the suction filter at the bottom of the container. If air bubbles are present in the sanitizer line, prime as necessary. For the optional sanitizer supply level sensor for EUL, ensure the bottle level sensor is correctly inserted with the float sensor at the bottom. If air bubbles are present in the sanitizer line, prime as necessary.
• Page 44: Temperature display units Top display shows “08” Bottom display shows current temperature units: (Default is “F”) Press the Menu button or the Delime button to change bottom display to “F” (°F) or “C” (°C) To exit the temperature units display menu, either press Start Button to move to next item or open and close door. Aux channels are reserved for internal functions. Display shows the current control software version. Top display shows major version. Bottom displays minor revision. Example: Software version 3.5. Minor revision F41138 (August 2022).
• Page 45: Installation and operation manual for CENTERLINE ECOLINE. Press and hold the Menu button or the Delime button to display the machine program. To exit the software version menu, press the Start Button or open and close the door. Err appears in the top display when there is an error. The error code is shown in the bottom display. If the error code persists, contact Hobart Service. Press the power button to power off and provide 20 minutes to cool off. Restart as normal if an error continues to display. A long wash cycle of 10 to 20 minutes will trigger if the booster does not reach temperature or water level set point. Contact Hobart Service for possible high limit trip or heating element malfunction if errors persist.
• Page 46: Installation and operation manual for CENTERLINE ECOLINE. Error codes and symptoms with possible solutions are provided. For temperature above upper limit, power off the machine and restart. If the error persists, contact Hobart Service for possible heating element malfunction. For temperature below lower limit, follow the same power off and restart procedure. For booster pressure level sensor issues, drain the tank and refill to reset sensors. If errors continue, contact Hobart Service for potential drain pump malfunction. Check for clogged nozzles if the wash tank water level exceeds the limit. Verify drain hose conditions for fill time exceeded errors. For chemical deficiency, check detergent, rinse aid, and sanitizer levels.
• Page 47: Installation and operation manual for CENTERLINE™ ECOLINE™. Internal communication error may require contacting Hobart Service. Check if items from the previous wash cycle removed a large amount of water from the dishwasher. Verify the orientation of ware to ensure water is not collected. The wash tank will fill to the proper level and heat to temperature before resuming the wash cycle. To start the wash cycle, press the power button to power off and drain the tank. If an error continues to display, unplug the machine or turn the circuit breaker off and back on. System exceeded maximum fill time may require checking the supply hose and water supply. Notes displayed with a combination of letters indicate various operational statuses. Close the door if the filling, washing, draining, or delime program is interrupted.
• Page 48: Troubleshooting guide Poor wash results Fault type Possible cause Remedy Wash arm hard to turn Remove wash arms and clean them thoroughly. Wash arm nozzles are clogged Remove wash arm and rinse wash arm thoroughly until all soiling is removed. Ware not clean Delime machine if needed. Detergent concentration is too low or too high. Check detergent concentration setting. Wash ware still greasy Check if detergent is appropriate. If not, choose a stronger one. Ware or glasses dry poorly Ensure better pre-scrapping of the wash ware. Streaks and spots on ware or glasses Check water quality. Inadequate rinse aid dispensing causes stains. Increase rinse aid concentration.
• Page 49: Installation and operation manual for CENTERLINE ECOLINE. Possible causes for glass issues include rough surfaces and cloudiness. Use new glasses if they are cloudy; this is not a machine malfunction. Glass or dish breakage may occur due to unsuitable racks; use suitable racks. Genuine spare parts must be used for repairs and maintenance. Contact your service office for repairs or adjustments needed on the equipment. Long-term service contracts are available for Hobart products. The machine operator is responsible for proper disposal in accordance with environmental regulations. Installations by unauthorized technicians or non-genuine parts will invalidate the warranty. Hobart reserves the right to make changes or improvements to its products without prior notice.
• Page 50: Installation and operation manual. Notes.