Hoshizaki JWE-2400CUA-R-25B manuale d’uso

SER VICE MANUAL HOSHIZAKI DISHWASHER JWE-2400CUA-L-25B JWE-2400CUA-R-25B NO. J002-794 ISSUED: APR. 1, 201 1 REVISED: SEP . 6, 201 1 MODEL[...]

IMPOR T ANT Only quali fi ed service technicians should install, service, and maintain the unit. No service or maintenance should be undertaken until the technician has thoroughly read this Service Manual. Failure to service and maintain the equipment in accordance with this manual may adversely affect safety , performance, component life, and war[...]

IMPOR T ANT This manual should be read carefully before the unit is serviced or maintenance operations are performed. Only quali fi ed service technicians should install, service, and maintain the unit. Read the warnings contained in this booklet carefully as they give important information regarding safety . Please retain this booklet for any fur[...]

12. Special Modes ---------------------------------------------------------------------------------------22 III. Service Diagnosis ----------------------------------------------------------------------------------------24 A. Diagnostic Procedure ---------------------------------------------------------------------------------24 B. Error Codes -----[...]

Important Safety Information Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury , or damage to the unit. W ARNING Indicates a hazardous situation which could result in death or serious injury . NOTICE Indicates a situation which could result in damage to the unit or property . IM[...]

1 I. Speci fi cations A. Speci fi cation Sheet 1. JWE-2400CUA-L-25B DISHW ASHER SIDE BOOSTER SIDE 3 phase 3-wire 208-230V/60Hz (±10%) / 2 power supply line s 㩷 208V : 18.4kVA(51.1A) 230V : 22.1kVA(55.5A) 208V : 20.6kVA(57.2A) 230V : 25.3kVA(63.5A) Max Running 51.2A Rated Motor 9.0A Max Running 63.3A 26.0A Max 19.86kW Rated Motor 3.06kW Power F[...]

2 2. JWE-2400CUA-R-25B DISHW ASHER SIDE BOOSTER SIDE 3 phase 3-wire 208-230V/60Hz (±10%) / 2 power supply line s 㩷 208V : 18.4kVA(51.1A) 230V : 22.1kVA(55.5A) 208V : 20.6kVA(57.2A) 230V : 25.3kVA(63.5A) Max Running 51.2A Rated Motor 9.0A Max Running 63.3A 26.0A Max 19.86kW Rated Motor 3.06kW Power Factor 84% Max 25.20kW AC SUPPLY VOLTAGE POW ER [...]

3 B. Nameplate Rating For certi fi cation marks, see the nameplate on the dishwasher . We reserve the right to make changes in speci fi cations and design without prior notice.[...]

4 C. Dimensions/Connections 1. JWE-2400CUA-L-25B Units: mm [in.][...]

5 2. JWE-2400CUA-R-25B Units: mm [in.][...]

6 II. General Information A. Construction 1. Dishwasher The illustration below shows JWE-2400CUA-L-25B (left-to-right rack fl ow). Operation Panel Emergency Stop Button Rinse Spray Arm (stationary) Rinse Start Switch W ash Start Switch Conveyor T able Limit Switch W ash Spray Arm (stationary) Service Panel Switch Booster T ank W ater V alve Backup[...]

7 2. Booster T ank T op View Front View Sheathed Heater [H7 - 15] Hot W ater Outlet Pipe Over fl ow Pipe Thermostat Plate Inlet W ater V alve [WV] Inlet Pipe Thermal Protector [TH7 - 12] (heater boil dry protection) W ater Level Float Switch [FS1] (downward end) Backup W ater Level Float Switch [FS2] (upward end) W ater Level Safety Float Switch [[...]

8 3. Control Box Control Board Fan Motor Fan T erminal Block TB1: For Dishwasher TB2: For Booster T ank Conveyor Speed Switch Relay X10: Rinse PM Control X1 1: Service Panel Switch X12: Phase Reversal Relay X13: Booster T ank W ater V alve X14: Conveyor Drive Signal X15: Booster T ank Heater Control Relay Magnetic Contactor (Lower W ash Spray Arm P[...]

9 B. Functions 1. Increasing Rinse W ater Flow Rate Upper Rinse Spray Arm The rinse water fl ow rate is factory adjusted to 1.90 gal/min (7.2 L/min). To increase the fl ow rate to 3.17 gal/min (12 L/ min), follow the steps below. Hot water supply of at least 3.44 gal/min (13 L/min) and 113°F (45°C) will be required. Nut Clean Pipe Lower Rinse S[...]

10 4. If BT WLF/S fails, BT BUWLF/S assumes control. If BT BUWLF/S remains closed for 1 minute, o1 or o2 error appears in the display. For details, see "III.B. Error Codes." 5. The wash/rinse start switch is inactive during the auto fi ll cycle. 2. Ready Cycle (Unit Inactive) "READY" lamp and "RINSE TEMP." or "WA[...]

11 WT. The conveyor does not start during the supplementary fi ll cycle. "A3" appears in the display and the "AUTO FILL" lamp fl ashes. BZ beeps three times only at the beginning. If WT WLS is still open after the supplementary fi ll cycle, another cycle starts. If WT WLS still does not close, "A3" appears in the di[...]

12 D. Sequence of Operation Flow Chart Cycle Steps 1. Auto Fill Cycle 2. Ready Cycle (Unit Inactive) 3. Wash Cycle 4. Rinse Cycle • SPS must be closed for RPM to energize • Cycle started by wash start switch • Cycle started by rinse start switch • RPM time: (service menu item 03) • SPS must be closed for WPM to energize • SPS must be cl[...]

13 E. Timing Chart 1. Auto Fill Cycle "ON/OFF" Button ON OFF "AUTO FILL" Lamp ON OFF "READY" Lamp ON OFF "WASH" Lamp ON OFF Service Panel Switch CLOSED OPEN Rinse Pump ON OFF Water Valve ON OFF (Repeat) Water Level Float Switch CLOSED OPEN Backup Water Level Float Switch CLOSED OPEN Water Level Safety Float S[...]

14 2. Wash Cycle/Rinse Cycle "ON/OFF" Button ON OFF "AUTO FILL" Lamp ON OFF "READY" Lamp ON OFF "WASH" Lamp ON OFF Service Panel Switch CLOSED OPEN Water Level Sensor CLOSED OPEN Wash Start Switch CLOSED OPEN Upper Wash Pump ON OFF Lower Wash Pump ON OFF Rinse Start Switch CLOSED OPEN Rinse Pump ON OFF Convey[...]

15 F . Control Board and Operation Board • A Hoshizaki exclusive solid-state control board and operation board are employed in all Hoshizaki dishwasher units. • All models are pretested and factory set. NOTICE 1. The control board and operation board are fragile; handle very carefully. 2 . The control board and operation board contain integrate[...]

16 2. Control Board Layout Inputs and outputs are laid out on the control board as illustrated below.                         Buzzer Output XA Connector (2P) Signal Input XA Connector (6P) Power Input VH Connector (6P) Output VH Connector (7P) Output VH Connector (5P) X1 X2 X3 [...]

17 3. Control Board Diagram       Booster T ank Thermistor W ash T ank Thermistor Buzzer Output X5 X4 MC3 X10 MC1 X1 3 X2 X3 X6 X7 5 7 T able Limit Switch + Conveyor Overload Wash Tank Electrode (Water Level Sensor) [Communication] Operation Panel Board ( Shielded Wire ) 1 5 Booster T ank W ater Level Float S witch Booster T ank B[...]

18 4. Operation Panel Layout The operation panel is mounted on top of the unit (wash compartment exit side) and is connected to the CN5 connector on the control board. 5. Features a) Display This operation board uses an LED display to show system details and diagnostic information. b) Service Menu and Error Log A service menu ("01" to &qu[...]

19 c) "READY" Lamp Lights up when the auto fi ll cycle completes and the dishwasher is ready to wash. d) "WASH" Lamp Lights up during washing operation. e) Up Button, Down Button Indicates the total hours of operations in six digits by two digits each time. Example: 123,456 hours are indicated by Press to stop the beep in case [...]

20 b) Service Menu Chart Service Menu Item and Details Setting Range Display Factory Default 01 Extended W ash Cycle T ime 1 to 99 seconds (in 10 second steps) 1 to 99 30 02 Extended Rinse Cycle T ime 1 to 99 seconds (in 1 second steps) 1 to 99 15 03 Auto Fill Cycle Rinse T ime 0 to 99 minutes (in 1 minute steps) 0 to 99 13 04 W ash T emperature Se[...]

21 8. Temperature Display • Indicates the average water temperature read by the wash tank or booster tank thermistor. Indicates water temperature selected by the water temperature lamps beside the display . The factory default setting is to indicate wash water temperature and rinse water temperature alternately every 5 seconds. T o adjust the dis[...]

22 11. Operation Time Display To indicate the total hours of operation in the display, press the up button on the operation panel. The number appears from the hundred-thousands place by two digits each for 1 second. The maximum number is 999,999 hours, and the display does not change for the higher numbers. Example: 19,302 hours are indicated as 12[...]

23 4) Set service menu item 19 to ON to stop the beep when the "ON/OFF" button is switched off but to resume fl ashing "Ch" when the "ON/OFF" button is switched back on unless the wash water tank is re fi lled (factory default: OFF). Press the emergency stop button or turn off the external power supply to stop both t[...]

24 III. Service Diagnosis WARNING 1. This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fi re. 2 . Risk of electric shock. Use extreme caution and exercise safe electrical practices. 3. Moving parts (e.g., fan blade) can crush and cut. Keep hands clear. 4. [...]

25 It is recommended to conduct this sequence check in the auto fi ll cycle after draining the wash tank and booster tank. See “II.C. Sequence of Operation” for further details. 1) Use the “ON/OFF” button on the operation panel to turn off the unit. 2) Pull out the over fl ow pipe to drain the wash tank. 3) Drain the booster tank through [...]

26 B. Error Codes In the event of operation outside of normal parameters, the control board identi fi es the issue with an error code. For further service information, see "III.C. Service Flow Charts." 1. Error Code Table Error Code Problem Operation Reset A1 Wash Tank Auto Fill Error Water level in wash tank does not reach water level s[...]

27 Error Code Problem Operation Reset H4 Booster Tank Thermistor Error (open) Thermistor senses abnormal temperature (at or below -6°F (-21°C)). Normal (Booster tank heaters off) After replacing failed component, alarm resets. H5 ROM/RAM Error Control board ROM/RAM fails. Whole unit stops After replacing control board, alarm resets. H6 EEPROM Err[...]

28 3. Error Code Details a) Auto Fill Error (A1) • If the water level sensor in the wash tank is not closed at the end of the auto fi ll cycle, the unit shuts down, "A1" appears in the display, and the buzzer sounds. • To reset, use the "ON/OFF" button to turn the unit off and then back on. • See the chart below for possi[...]

29 S ticking (with float in “ ON ” position). Check and clean. See “ III.D. Float Switch Check and Cleaning. ” Defective (with internal contacts in “ON” position). Replace. Continue Booster T ank W ater Level Float Switch[...]

30 b) Booster Tank Auto Fill Error (A2) • In the auto fi ll cycle, if the booster tank water level fl oat switch does not close within 10 minutes (or 20 minutes in "READY" mode) after the cycle starts, the unit shuts down, "A2" appears in the display, and the buzzer sounds. • To reset, use the "ON/OFF" button to [...]

31 c) Wash Tank Water Level Error (A3) • If the water level in the wash tank goes below the water level sensor in "READY" mode or during operation, the supplementary fi ll cycle starts, "A3" appears in the display, the "AUTO FILL" lamp fl ashes, and the buzzer sounds three times only at the beginning. • If the wa[...]

32 d) Booster Tank Water Level Error 1 (Booster Tank Water Level Float Switch Closed) (o1) • If both the booster tank water level fl oat switch and the booster tank backup water level fl oat switch have remained closed for 1 minute, the booster tank heaters de-energize, "o1" appears in the display, and the buzzer sounds. • The error[...]

33 e) Booster Tank Water Level Error 2 (Booster Tank Water Level Float Switch Open) (o2) • If the booster tank water level fl oat switch is open and the booster tank backup water level fl oat switch has remained closed for 1 minute, the booster tank heaters de-energize, "o2" appears in the display, and the buzzer sounds. • The error[...]

34 f) Wash Tank Thermistor Error (H1, H2) • If the wash tank thermistor senses a temperature at or above 231°F (111°C) (2.4k Ω ), the thermistor leads are considered shorted and the wash tank heaters de-energize, "H1" appears in the display, and the buzzer sounds. • If the wash tank thermistor senses a temperature at or below -6°F[...]

35 g) Booster Tank Thermistor Error (H3, H4) • If the booster tank thermistor senses a temperature at or above 231°F (111°C) (2.4k Ω ), the thermistor leads are considered shorted and the booster tank heaters de-energize, "H3" appears in the display, and the buzzer sounds. • If the booster tank thermistor senses a temperature at or[...]

36 h) ROM/RAM Error (H5) • If a ROM/RAM error is detected, the unit shuts down, "H5" appears in the display, and the buzzer sounds. • After replacing the failed component, the alarm resets. • See the chart below for possible causes and remedies. i) EEPROM Error (H6) • If an EEPROM error is detected, the unit shuts down, "H6&q[...]

37 j) Conveyor Overload or T able Limit Error 1 (L1) • If the inverter sends an overload signal or the table limit switch closes, the unit shuts down, "L1" appears in the display, and the buzzer sounds. • After removing the jammed rack or the cause of the overload (the table limit switch opens or the inverter stops sending the overloa[...]

38 k) Conveyor Overload or T able Limit Error 2 (L2) • If the unit shuts down with "L1" in the display and restarts in 3 seconds after the cause of the overload is removed, and the inverter sends another overload signal within 3 seconds after the conveyor moves, the unit completely shuts down, "L2" appears in the display, and [...]

39 l) Booster T ank Error (b1) • If the booster tank error input contacts stay open for more than 2 seconds, "b1" appears in the display, and the buzzer sounds. • If the booster tank error input contacts stay closed for more than 2 seconds, the alarm resets. Note: The booster tank error input must be connected to indicate this error c[...]

40 m) Booster T ank Water Level Safety Error (b2) • If the booster tank water level safety fl oat switch opens after the booster tank water level fl oat switch closes, the unit shuts down, "b2" appears in the display, and the buzzer sounds. • T o reset, use the "ON/OFF" button to turn the unit off and then back on.  Boo[...]

41 C. Service Flow Charts 1. Unit Will Not Start Main Power Supply Unit will not start Problem Possible Cause Remedy Emergency S top Button Pressed. T urn clockwise to reset. ON/OFF Button “OFF” position. Move to “ON” position. Power Failure W ait for recovery . No W ater Supply W ater failure. W ait for recovery . Shut off valve closed. Op[...]

42 Continue T ransformer Open coil winding. Replace. Wiring to Control Board Loose connections or open. Check continuity and repair or replace. Control Board In alarm. See “III.B. Error Codes.” Defective. Replace.[...]

43 2. Dishes Not Clean Low W ash Pump Output Clogged with foreign matter . Clean. V oltage drop. Remove cause. V apor lock due to clogged tank filter . Clean tank filter . Clogged. Dishes not clean Problem Possible Cause Remedy W ash pump defective. Replace. Out of position. Wa s h Spr a y A r m s Clean. Low pump output. Set in position. See “Low[...]

44 Conveyor S peed T oo high. Adjust to medium or low . Continue Detergent No supply . See “III.C.5. No or Inadequate Detergent/Rinse Aid Su pp l y .” Insufficient supply . Refill or adjust detergent feeder . Unspecified detergent used. Use specified detergent only . Check input/output and repair or replace. Control output error . Reset manuall[...]

45 3. Inadequate Rinse Low Rinse Pump Output Clogged with foreign matter . Clean. Rinse water line scaled. Clean. V oltage drop. Remove cause. Inadequate rinse Problem Possible Cause Remedy Rinse pump defective. Replace. Rinse S pray Arms Low pump output. See “Low Rinse Pump Output.” Rinse Cycle T ime T oo short. Adjust longer . V oltage T oo l[...]

46 4. Dishwasher Will Not Start W ash/Rinse Cycle Dishwasher will not start wash/rinse cycle Problem Possible Cause Remedy W ash Pump Inoperative Protector tripped. W ait until wash pump cools. Locked with foreign matter . Remove obstacles. Controller input/output error . Check input/output and repair or replace. Magnetic contactor defective. Repla[...]

47 5. No or Inadequate Detergent/Rinse Aid Supply 6. Wash Tank Water Boils Note: See “III.E. Thermistor Check” and “IV.H. Removal and Replacement of Thermistor.” Detergent/Rinse Aid Empty . Refill. Clogged or kinked. Clean or straighten. No or inadequate detergent/rinse aid supply Problem Possible Cause Remedy Supply Line (Injector , Vinyl [...]

48 7. Wash Tank Water Not Draining Drain Hose Clogged. Unclog. W ash tank water not draining Problem Possible Cause Remedy Pinched. Correct. Clogged. Unclog. Drain Pipe (Overflow Pipe) Raised. Correct.[...]

49 D. Float Switch Check and Cleaning (for Booster T ank W ater Level Float Switch and Backup W ater Level Float Switch) If an abnormal input signal is found by “III.A. Diagnostic Procedure” or the error code “o1” or “o2” is displayed, check and clean/replace the fl oat switches according to the procedure below. 1. Float Switch Check T[...]

50 E. Thermistor Check If the error code “H1” “H2” “H3” or “H4” or an abnormal temperature [above 231°F (111° C) or below -6°F (-21°C) ] appears in the display, or the wash tank water boils, check the thermistor(s) according to the procedure below. If replacement is required, see “IV.H. Removal and Replacement of Thermistor.?[...]

51 IV. Removal and Replacement of Components WARNING 1 . This unit should be diagnosed and repaired only by qualified service personnel to reduce the risk of death, electric shock, serious injury, or fi re. 2. Use the “ON/OFF” button on the operation panel to turn off the unit, then turn off the dishwasher and booster tank power supplies. Lock[...]

52 4) Make sure the O-rings are in place, and attach the wash pump motors to the tank discharge outlets and suction inlets. Secure the connections with the bands. 5) T ighten the bracket mounting screws. 6) Fill the tank with water, then check for water leaks from the joints. If there is a water leak, check the connections, and retighten the bands.[...]

53 6) Disconnect the rinse pump motor wiring at the closed end connectors. 7) Remove the nut from the fl exible tube at the rinse pump motor discharge outlet and the bolts securing the bracket to the unit base. 8) Remove the band from the pipe joint of the booster tank discharge pipe behind the rinse pump motor and the fl exible tube at the rinse[...]

54 Band Booster T ank Discharge Pipe Rinse Pump Motor Rinse Pump Motor Suction Inlet Flexible T ube [JWE-2400CUA-L-25B] * View without rinse pump motor Booster T ank Discharge Pipe Band Rinse Pump Motor Suction Inlet Flexible T ube[...]

55 D. Removal and Replacement of Gear Motor 1) Use the “ON/OFF” button on the operation panel to turn off the unit, then turn off the dishwasher and booster tank power supplies. Lockout/Tagout to prevent the power supplies from being turned back on inadvertently. 2) Remove the front panel. 3 ) The gear motor is located behind the control box an[...]

56 E. Removal and Replacement of Conveyor 1) Remove the 4 bolts (2 at rear , 2 at both sides) securing the rear rack rail. 2) Hold the conveyor , and lift off the rear rack rail. 3) T ake out the conveyor . 4) Remove the left and right frames from the conveyor . Slider • Push out the wider side • Face the reinforcing rib side down Roller Frame [...]

57 F . Removal and Replacement of Crankshaft To remove: 1) Remove the front panel. 2) Remove the conveyor . 3) Loosen the 6 hexagon socket set screws for the stopper and the coupling. 4) Lift off the crank together with the shaft. 5) Loosen the screw securing the crank to release the crank from the shaft. Note: Do not disassemble the housing, oil s[...]

58 G. Removal and Replacement of Control Box WARNING Do not touch the live parts during a trial run or servicing operations. NOTICE Be careful not to damage the wiring when handling the control box. 1) Use the “ON/OFF” button on the operation panel to turn off the unit, then turn off the dishwasher and booster tank power supplies. Lockout/Tagou[...]

59 2) Remove the front panel. 3) Slide out the control box. 4) Remove the plastic bag covering the thermistor connector, then disconnect the thermistor connector. If replacing the wash tank thermistor, disconnect the leads from the wash tank electrode. If replacing the booster tank thermistor, disconnect the closed end connectors for the booster ta[...]

60 Stay - OP Joint - Operation (B) Operation Panel (B) T ube (A) T ube (B) Operation Board Connector Cable - Operation 3) Disconnect the control board connectors from the control board. 4) Slide out the control board. 5) Install the new control board. 6) To replace, reverse the above procedure. 2. Operation Board 1) Use the “ON/OFF” button on t[...]

61 J. Removal and Replacement of Heater When replacing the wash tank heater or the booster tank heater , remove the nuts using a 7/8" crowfoot wrench. When replacing the booster tank heater , move the clean dishtable above the booster tank before following the procedure below . 1) Use the “ON/OFF” button on the operation panel to turn off [...]

62 * The illustration shows the boster tank heater Bolt Band Heater Nut W asher Heater Band Cross-section: band fi tting Square Hole K. Removal and Replacement of Float Switch When replacing the fl oat switch, move the clean dishtable above the booster tank before following the procedure below . 1) Use the “ON/OFF” button on the operation pan[...]

63 L. Removal and Replacement of Thermostat NOTICE Always use the recommended sealant (high thermal conductive type), Model KE4560RTV manufactured by SHINETSU SILICONE, Part Code 60Y000-11, or Part Code 4A0683-01 or equivalent. When replacing the thermostat in the wash water tank or the booster tank, remove the thermostat, clear any remaining seala[...]

64 V. Cleaning and Maintenance Instructions A. Daily Maintenance IMPOR T ANT Be sure to clean the dishwasher after closing time every day . It is dif fi cult to remove heavy soils left overnight. In high temperature conditions, food scraps will rot and affect sanitary operation. 1) Remove the three curtains at the entrance, center , and exit of th[...]

65 6) T o remove the lower rinse spray arm, push down the rising part to unhook, pull off the end of the pipe towards you, then take it out from between the rack rails. 7) Remove the separators. 8) T ake out scraps from the removed tank filters, drain pipe and separators, and wash them clean with a scouring pad. IMPOR T ANT T o prevent damage, do n[...]

66 12) Check the pump filters inside the wash tank. If they are clogged, clean them with a scouring pad. Silverware Pump Filter 1 1 ) Clean the wash compartment. Remove any scraps from inside the wash compartment and wash tank. Use a scouring pad to wash off heavy soils. Remove any silverware left inside the wash compartment. 13) Check the water le[...]

67 17) T o replace the upper wash spray arm, hold it with the nozzles facing down, and insert the joint into the pipe located at the back of the wash compartment. Lift up the front, then securely hook in the square hole. 18) T o replace the lower wash spray arm, hold both sides with the nozzles facing up, and put it under the rack rails from the fr[...]

68 20) T o replace the lower rinse spray arm, put it between the rack rails, insert the end of the pipe into the joint, then turn and hook the front. Ring 21) Install the curtain (L) in the wash compartment. 22) Install the curtains (S) at the entrance and exit of the wash compartment. Curtain Rod (longer) Curtain Rod (shorter) Fit front fi rst Fi[...]

69 23) Close the service panel. W ARNING T o prevent entrance of dust or insects and injuries by a sudden drop, do not leave the service panel open. B. W eekly Maintenance 1. Heater W ARNING T o prevent burns, wait for 10 minutes after draining the unit to clean the interior . Remove any scraps from the heater , and use a soft brush to wash off res[...]

70 D. Descaling (As Required) Use a descaler according to the supplier’s instructions. WARNING 1. Carefully follow any instructions provided with the descaler. 2. Always wear liquid-proof gloves and goggles to prevent the descaler from coming into contact with skin or eyes. 3. To prevent generation of toxic chlorine gas, do not mix a descaler wit[...]

71 1) Press the “ON/OFF” button on the operation panel. The display and lamps go of f. 2) T urn off the water heater . 3) T urn off the gas and water supplies. IMPOR T ANT T o operate the water heater , follow its instruction manual. 4) Open the service panel. IMPOR T ANT Be sure to hook the service panel in its open position. 5) Pull out the d[...]

72 F . Long Storage, Relocation, Disposal, Transfer When preparing the unit for long storage, shut down and clean the unit according to sections A - E. If something seems wrong when restarting the unit after long storage, turn off the power supply , and immediately contact an authorized Hoshizaki service company . W ARNING 1. When restarting the un[...]

73 VII. Technical Information A. Water Circuit • The wash water is sprayed by the two wash pumps from the upper and lower wash spray arms into the wash compartment. • The rinse water is sprayed by the rinse pump from the upper and lower rinse spray arms into the wash compartment. • The detergent is fed by the detergent feeder (not provided by[...]

74 B. Wiring Diagram[...]