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Hoshizaki JWE-620UA-6B Service Manual

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MODEL
HOSHIZAKI
DISHWASHER
JWE-620UA-6B
SERVICE MANUAL
NO.
80VC-782
ISSUED:
OCT. 20, 2009
REVISED: MAR. 11, 2010

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  • Page 1 80VC-782 ISSUED: OCT. 20, 2009 REVISED: MAR. 11, 2010 HOSHIZAKI DISHWASHER JWE-620UA-6B MODEL SERVICE MANUAL...
  • Page 2 IMPORTANT 2QO\ TXDOL¿HG VHUYLFH WHFKQLFLDQV VKRXOG LQVWDOO VHUYLFH DQG PDLQWDLQ WKH XQLW 1R VHUYLFH RU PDLQWHQDQFH VKRXOG EH XQGHUWDNHQ XQWLO WKH WHFKQLFLDQ KDV WKRURXJKO\ UHDG WKLV 6HUYLFH 0DQXDO )DLOXUH WR VHUYLFH DQG PDLQWDLQ WKH HTXLSPHQW LQ DFFRUGDQFH ZLWK WKLV PDQXDO PD\ DGYHUVHO\ DIIHFW VDIHW\ SHUIRUPDQFH FRPSRQHQW OLIH DQG ZDUUDQW\ FRYHUDJH +RVKL]DNL SURYLGHV WKLV PDQXDO SULPDULO\ WR DVVLVW TXDOL¿HG VHUYLFH WHFKQLFLDQV LQ WKH PDLQWHQDQFH DQG VHUYLFH RI WKH XQLW...

  • Page 3: Table Of Contents

    IMPORTANT 7KLV PDQXDO VKRXOG EH UHDG FDUHIXOO\ EHIRUH WKH XQLW LV VHUYLFHG RU PDLQWHQDQFH RSHUDWLRQV DUH SHUIRUPHG 2QO\ TXDOL¿HG VHUYLFH WHFKQLFLDQV VKRXOG LQVWDOO VHUYLFH DQG PDLQWDLQ WKH XQLW 5HDG WKH ZDUQLQJV FRQWDLQHG LQ WKLV ERRNOHW FDUHIXOO\ DV WKH\ JLYH LPSRUWDQW LQIRUPDWLRQ UHJDUGLQJ VDIHW\ 3OHDVH UHWDLQ WKLV ERRNOHW IRU DQ\ IXUWKHU UHIHUHQFH WKDW PD\ EH QHFHVVDU\ CONTENTS , 6SHFL¿FDWLRQV  1...
  • Page 4  ,QDGHTXDWH 5LQVH   'LVKZDVKHU :LOO 1RW 6WDUW :KHQ 'RRU &ORVHG   1R RU ,QDGHTXDWH 'HWHUJHQW5LQVH $LG 6XSSO\   :DVK 7DQN :DWHU %RLOV   :DVK 7DQN :DWHU 1RW 'UDLQLQJ ' )ORDW 6ZLWFK &KHFN DQG &OHDQLQJ  )ORDW 6ZLWFK &KHFN   )ORDW 6ZLWFK &OHDQLQJ ( 7KHUPLVWRU &KHFN  ,9 5HPRYDO DQG 5HSODFHPHQW RI &RPSRQHQWV ...

  • Page 5: Important Safety Information

    Important Safety Information 7KURXJKRXW WKLV PDQXDO QRWLFHV DSSHDU WR EULQJ \RXU DWWHQWLRQ WR VLWXDWLRQV ZKLFK FRXOG UHVXOW LQ GHDWK VHULRXV LQMXU\ RU GDPDJH WR WKH XQLW WARNING Indicates a hazardous situation which could result in death or serious injury. CAUTION Indicates a situation which could result in damage to the unit.

  • Page 6: 6Shfl¿Fdwlrqv

    , 6SHFL¿FDWLRQV $ 6SHFL¿FDWLRQ 6KHHW WASH TANK SIDE BOOSTER TANK SIDE AC SUPPLY VOLTAGE 3 phase 3-wire 208-230V/60Hz (±10%) POWER SUPPLY CAPACITY 15.8kVA(39.7A) AMPERAGE Max Running 36.6A, Rated Motor 4.2A STARTING AMPERAGE 26.0A ELECTRICAL CONSUMPTION Rated Motor 1.40kW (Power Factor 85%) Max 14.30kW HEATER 6.9kW...

  • Page 7: 1Dphsodwh 5Dwlqj

    % 1DPHSODWH 5DWLQJ :H UHVHUYH WKH ULJKW WR PDNH FKDQJHV LQ VSHFL¿FDWLRQV DQG GHVLJQ ZLWKRXW SULRU QRWLFH...

  • Page 8: Lphqvlrqv&Rqqhfwlrqv

    & 'LPHQVLRQV&RQQHFWLRQV...

  • Page 9: Hqhudo ,Qirupdwlrq

    ,, *HQHUDO ,QIRUPDWLRQ $ &RQVWUXFWLRQ  'LVKZDVKHU...

  • Page 10: Qwhuqdo %Rrvwhu 7Dqn

     ,QWHUQDO %RRVWHU 7DQN Legend: )6±ÀRDW VZLWFK H±KHDWHU 7+–thermistor...

  • Page 11: Rqwuro %R

     &RQWURO %R[ Top View Air Flow Motor Fan motor is attached to the base Ground Fault Circuit Interrupter Wash Tank Heater Control Rinse PM Control Side View Wash PM Control Internal Booster Tank Heater Control Legend: CB±FRQWURO ERDUG GFCI±JURXQG IDXOW FLUFXLW LQWHUUXSWHU MC±PDJQHWLF FRQWDFWRU PM±SXPS PRWRU 5;±SKDVH UHYHUVDO UHOD\ 75±WUDQVIRUPHU ;–relay...

  • Page 12: 6Htxhqfh Ri 2Shudwlrq

    % 6HTXHQFH RI 2SHUDWLRQ The steps in the sequence are as outlined below.  $XWR )LOO &\FOH $872 ),// ODPS ÀDVKLQJ DQG 5,16( 67$1'$5' RU /21* ODPS RQ If WT WLS is open when power is supplied and the "ON/OFF" button is pressed, the $872 ),// ODPS ÀDVKHV DQG WKH DXWR ¿OO F\FOH VWDUWV WV energizes.

  • Page 13: Dvk &\Foh

    the "STANDBY/CLEANING" button again to return to "READY." For details on start initiation, see "Wash/Rinse Cycle Start Initiation" (service menu item 11) in "II.D.7.b) Service Menu Chart."  :DVK &\FOH The wash cycle can be started by either the door switch or the "STANDBY/CLEANING" button.

  • Page 14: 5Lqvh &\Foh

     5LQVH &\FOH The rinse cycle starts automatically after the wash cycle. When the mode is set to "RINSE," the rinse cycle can also be started by either the door switch or the "STANDBY/CLEANING" button. For details, see "Wash/Rinse Cycle Start Initiation" (service menu item 11) in "II. D.7.b) Service Menu Chart."...

  • Page 15: Udlq

     'UDLQ This unit does not have a drain valve. 7KH RYHUÀRZ SLSH LQ :7 GUDLQV H[FHVV ZDWHU IURP :7 7R FRPSOHWHO\ GUDLQ :7 UHPRYH WKH RYHUÀRZ SLSH 7R GUDLQ %7 ¿UVW PRYH WKH SRZHU VZLWFK *)&, WR WKH 2)) SRVLWLRQ 7XUQ RII WKH SRZHU supply.

  • Page 16: 6Htxhqfh Ri 2Shudwlrq )Orz &Kduw11

    & 6HTXHQFH RI 2SHUDWLRQ )ORZ &KDUW...

  • Page 17: Rqwuro %Rdug Dqg 2Shudwlrq %Rdug

    ' &RQWURO %RDUG DQG 2SHUDWLRQ %RDUG ‡ $ +RVKL]DNL H[FOXVLYH VROLGVWDWH FRQWURO ERDUG DQG RSHUDWLRQ ERDUG DUH HPSOR\HG LQ DOO Hoshizaki dishwasher units. ‡ $OO PRGHOV DUH SUHWHVWHG DQG IDFWRU\ VHW &$87,21  7KH FRQWURO ERDUG DQG RSHUDWLRQ ERDUG DUH IUDJLOH KDQGOH YHU\ FDUHIXOO\ 2.

  • Page 18: Rqwuro %Rdug /D\Rxw

     &RQWURO %RDUG /D\RXW Inputs and outputs are laid out on the control board as illustrated below. Signal Input XA Connector (6P) Buzzer Output XA Connector (2P) Signal Input XA Connector (10P) Power Input VH Connector (4P) Thermistor Signal Input XA Connector (4P) Power Input VH Connector (6P) CN10...

  • Page 19: Rqwuro %Rdug 'Ldjudp

    (CN7) (CN11) (CN4) Buzzer Output Wash Tank Electrode (Water Level Sensor) (CN10) JWE-620UA-6B Pins 1-4 shorted: 3 phase control Door Switch Pins 1-4 open: Booster Tank control (CN9) Internal Booster Tank Water Level Float Switch (CN6) Internal Booster Tank Backup Water Level Float Switch...

  • Page 20: 2Shudwlrq 3Dqho /D\Rxw

     2SHUDWLRQ 3DQHO /D\RXW The operation panel is mounted on the side of the unit and is connected to the CN5 connector on the control board. Up Button "READY" Lamp Down Button "AUTO FILL" Lamp Display Mode Lamps "MODE" Button "STANDBY/ "STANDBY/ CLEANING"...

  • Page 21: 6Huylfh 0Hqx Dqg

    d) Standby Lamp Comes on when the dishwasher is in the standby mode. The unit will not start even when the door is closed with this lamp on. See "II.D.6.h) "STANDBY/CLEANING" button. e) Up Button, Down Button Press to scroll through the service menu and adjust settings. Can also be used as follows: Press to display the total number of operations.
  • Page 22 b) Service Menu Chart 6HUYLFH )DFWRU\ ,WHP DQG 'HWDLOV 6HWWLQJ 5DQJH 'LVSOD\ 0HQX 'HIDXOW Wash Cycle Time 1 to 99 seconds 1 to 99 (Standard Mode) (see no. 08 for multiplier) (41 seconds) Wash Cycle Time 10 to 990 seconds 1 to 99 (Long Mode) (see no.

  • Page 23: 7Hpshudwxuh 'Lvsod\ 18

     7HPSHUDWXUH 'LVSOD\ ‡ ,QGLFDWHV WKH DYHUDJH ZDWHU WHPSHUDWXUH UHDG E\ WKH ZDVK WDQN RU LQWHUQDO ERRVWHU WDQN thermistor. Indicates wash tank water temperature in wash cycle, rinse (internal booster tank) water temperature in rinse cycle. Press the down button to indicate rinse (internal booster tank) water temperature instead of wash tank water temperature while the dishwasher is in "READY"...
  • Page 24  6SHFLDO 0RGHV a) Internal Booster Tank Energy Saving Mode The internal booster tank energy saving mode allows the internal booster tank temperature to drop during periods of inactivity. To activate or deactivate the internal booster tank energy saving mode, see " Internal Booster Tank Energy Saving Mode" (service menu item 14) in "II.D.7.b) Service Menu Chart."...
  • Page 25 ,,, 6HUYLFH 'LDJQRVLV :$51,1* 1. This unit should be diagnosed and repaired only by qualified service SHUVRQQHO WR UHGXFH WKH ULVN RI GHDWK HOHFWULF VKRFN VHULRXV LQMXU\ RU ¿UH 2. Risk of electric shock. Use extreme caution and exercise safe electrical practices.
  • Page 26 ,W LV UHFRPPHQGHG WR FRQGXFW WKLV VHTXHQFH FKHFN LQ WKH DXWR ¿OO F\FOH DIWHU GUDLQLQJ WKH wash tank and internal booster tank. See “II.B. Sequence of Operation” for further details. 1) Move the power switch (GFCI) to the “OFF” position.  3XOO RXW WKH RYHUÀRZ SLSH WR GUDLQ WKH ZDVK WDQN 3) Drain the internal booster tank through the drain hose.
  • Page 27 % (UURU &RGHV ,Q WKH HYHQW RI RSHUDWLRQ RXWVLGH RI QRUPDO SDUDPHWHUV WKH FRQWURO ERDUG LGHQWL¿HV WKH LVVXH with an error code. For further service information, see "III.C. Service Flow Charts."  (UURU &RGH 7DEOH (UURU 3UREOHP 2SHUDWLRQ 5HVHW &RGH Wash Tank Auto Fill Error Unit stops Use "ON/OFF"...
  • Page 28 (UURU 3UREOHP 2SHUDWLRQ 5HVHW &RGH Internal Booster Tank Thermistor Error Normal After replacing failed component, (open) (internal alarm resets. booster tank Thermistor senses abnormal temperature heaters off) (at (heater off) or below -6°F (-21°C)). ROM/RAM Error Unit stops After replacing control board, alarm resets.
  • Page 29  (UURU &RGH 'HWDLOV a) Auto Fill Error (A1) ‡ ,I WKH ZDWHU OHYHO VHQVRU LQ WKH ZDVK WDQN LV QRW FORVHG DW WKH HQG RI WKH DXWR ¿OO F\FOH WKH unit shuts down, "A1" appears in the display, and the buzzer sounds. ‡...
  • Page 30 b) Internal Booster Tank Auto Fill Error (A2) ‡ ,Q WKH DXWR ¿OO F\FOH LI WKH LQWHUQDO ERRVWHU WDQN ZDWHU OHYHO ÀRDW VZLWFK GRHV QRW FORVH ZLWKLQ 10 minutes after the cycle starts, the unit shuts down, "A2" appears in the display, and the buzzer sounds.
  • Page 31 c) Wash Tank Water Level Error (A3) ‡ ,I WKH ZDWHU OHYHO LQ WKH ZDVK WDQN JRHV EHORZ WKH ZDWHU OHYHO VHQVRU LQ 5($'< PRGH RU LQ 67$1'%< WKH DXWR ¿OO F\FOH VWDUWV $ DSSHDUV LQ WKH GLVSOD\ DQG WKH EX]]HU sounds.
  • Page 32 d) Internal Booster Tank Water Level Error 1 (Internal Booster Tank Water Level Float Switch Closed) (o1) ‡ ,I ERWK WKH LQWHUQDO ERRVWHU WDQN ZDWHU OHYHO ÀRDW VZLWFK DQG WKH LQWHUQDO ERRVWHU WDQN EDFNXS ZDWHU OHYHO ÀRDW VZLWFK KDYH UHPDLQHG FORVHG IRU  PLQXWH WKH LQWHUQDO ERRVWHU WDQN KHDWHUV de-energize, "o1"...
  • Page 33 e) Internal Booster Tank Water Level Error 2 (Internal Booster Tank Water Level Float Switch Open) (o2) ‡ ,I WKH LQWHUQDO ERRVWHU WDQN ZDWHU OHYHO ÀRDW VZLWFK LV RSHQ DQG WKH LQWHUQDO ERRVWHU WDQN EDFNXS ZDWHU OHYHO ÀRDW VZLWFK KDV UHPDLQHG FORVHG IRU  PLQXWH WKH LQWHUQDO ERRVWHU WDQN heaters de-energize, "o2"...
  • Page 34 f) Wash Tank Thermistor Error (H1, H2) ‡ ,I WKH ZDVK WDQN WKHUPLVWRU VHQVHV D WHPSHUDWXUH DW RU DERYH ƒ) ƒ& N  WKH thermistor leads are considered shorted and the wash tank heaters de-energize, "H1" appears in the display, and the buzzer sounds. ‡...
  • Page 35 g) Internal Booster Tank Thermistor Error (H3, H4) ‡ ,I WKH LQWHUQDO ERRVWHU WDQN WKHUPLVWRU VHQVHV D WHPSHUDWXUH DW RU DERYH ƒ) ƒ& N  WKH WKHUPLVWRU OHDGV DUH FRQVLGHUHG VKRUWHG DQG WKH LQWHUQDO ERRVWHU WDQN KHDWHUV de-energize, "H3" appears in the display, and the buzzer sounds. ‡...
  • Page 36 h) ROM/RAM Error (H5) ‡ ,I D 5205$0 HUURU LV GHWHFWHG WKH XQLW VKXWV GRZQ + DSSHDUV LQ WKH GLVSOD\ DQG WKH buzzer sounds. ‡ $IWHU UHSODFLQJ WKH IDLOHG FRPSRQHQW WKH DODUP UHVHWV ‡ 6HH WKH FKDUW EHORZ IRU SRVVLEOH FDXVHV DQG UHPHGLHV Operation Code Error...
  • Page 37 j) Phase Reversal Error (H7) ‡ ,I D SKDVH UHYHUVDO HUURU LV GHWHFWHG WKH XQLW VKXWV GRZQ + DSSHDUV LQ WKH GLVSOD\ DQG the buzzer sounds. ‡ $IWHU FRUUHFWLQJ WKH FRQQHFWLRQ WKH DODUP UHVHWV ‡ 6HH WKH FKDUW EHORZ IRU SRVVLEOH FDXVHV DQG UHPHGLHV Operation Code Error...
  • Page 38 & 6HUYLFH )ORZ &KDUWV  8QLW :LOO 1RW 6WDUW Unit will not start Problem Possible Cause Remedy Off, blown fuse, or Turn on, replace, or Main Power Supply tripped or defective check and reset. Call circuit breaker. electrician if breaker trips repeatedly.
  • Page 39 Continue Open coil winding. Check continuity and Transformer replace. Loose connections or Check continuity and Wiring to Control Board open. replace. In alarm. See “III.B. Error Control Board Codes.” Defective. Replace.
  • Page 40  'LVKHV 1RW &OHDQ Dishes not clean Problem Possible Cause Remedy Clogged with foreign Clean. Low Wash Pump matter. Output Voltage drop. Remove cause. Vapor lock due to Clean tank filter. clogged tank filter. Vapor lock due to use Stop using neutral of neutral cleaner.
  • Page 41 Continue No supply. See “III.C.5. No or Detergent Inadequate Detergent/Rinse Aid Supply.” Insufficient supply. Refill or adjust detergent feeder. Unspecified detergent Use specified used. detergent only. Dirty. Drain wash tank and Wash Tank Water supply fresh hot water. Temperature too low. Raise setting or see “Heater Not Energized”.
  • Page 42  ,QDGHTXDWH 5LQVH Inadequate rinse Problem Possible Cause Remedy Clogged with foreign Clean. Low Rinse Pump matter. Output Rinse water line Clean. scaled. Voltage drop. Remove cause. Rinse pump defective. Replace. Obstructed by cutlery Reposition the cutlery Rinse Spray Arms or other item.
  • Page 43  'LVKZDVKHU :LOO 1RW 6WDUW :KHQ 'RRU &ORVHG Dishwater will not start when door closed Problem Possible Cause Remedy Unit in “STANDBY.” Press “STANDBY/ Setting error CLEANING” button to cancel “STANDBY.” Wash/Rinse cycle start Change to door switch initiation (service start.
  • Page 44  1R RU ,QDGHTXDWH 'HWHUJHQW5LQVH $LG 6XSSO\ No or inadequate detergent/rinse aid supply Problem Possible Cause Remedy Empty. Refill. Detergent/Rinse Aid Clogged or kinked. Clean or straighten. Supply Line (Injector, Vinyl Hose, Strainer) Air in line. Purge air. Supply volume too Set to proper volume.
  • Page 45  :DVK 7DQN :DWHU 1RW 'UDLQLQJ Wash tank water not draining Problem Possible Cause Remedy Clogged. Unclog. Drain Hose Pinched. Correct. Raised. Correct. Clogged. Unclog. Drain Pipe (Overflow Pipe)
  • Page 46  8VH D VRIW EUXVK WR UHPRYH VFDOH RU VRLO RQ WKH ÀRDW VZWLFK RU ZLSH GRZQ WKH ÀRDW VZLWFK with a mixture of 1 part of recommended cleaner Hoshizaki “Scale Away” or “LIME-A-WAY” (Economics Laboratory, Inc.) and 25 parts of warm water.
  • Page 47 ( 7KHUPLVWRU &KHFN 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.M. Removal and Replacement of Thermistor.”...
  • Page 48 ,9 5HPRYDO DQG 5HSODFHPHQW RI &RPSRQHQWV :$51,1* 1. This unit should be diagnosed and repaired only by qualified service SHUVRQQHO WR UHGXFH WKH ULVN RI GHDWK HOHFWULF VKRFN VHULRXV LQMXU\ RU ¿UH 2. Move the power switch (GFCI) to the "OFF" position and turn off the power supply before servicing.
  • Page 49 Side Panel (L) Side Panel (R) Front Panel Wire Retainer Control Box Control Box Cover (B) Control Box Cover (A) Hook Bushing Control Board Phase Reversal Relay Magnetic Contactor Relay GFCI Transformer Buzzer Bushing...
  • Page 50 & 5HPRYDO DQG 5HSODFHPHQW RI ,QWHUQDO %RRVWHU 7DQN 1) Move the power switch (GFCI) to the “OFF” position, then turn off the power supply. Lockout/Tagout to prevent the power from being turned back on inadvertently. 2) Close the water supply line shut-off valve. 3) Use the internal booster tank drain hose to drain the internal booster tank.
  • Page 51 ' 5HPRYDO DQG 5HSODFHPHQW RI :DVK 3XPS 0RWRU To remove: 1) Move the power switch (GFCI) to the “OFF” position, then turn off the power supply. Lockout/Tagout to prevent the power from being turned back on inadvertently. 2) Drain the wash tank. 3) Remove the front panel.
  • Page 52 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. If there are no water leaks, drain WKH WDQN 7KLV LQVSHFWLRQ FDQQRW GHWHFW ZDWHU OHDNV IURP WKH ÀH[LEOH SLSH DQG SLSH MRLQW connection.
  • Page 53 ) 5HPRYDO DQG 5HSODFHPHQW RI +DQGOH 1) Unscrew the door link shaft with the door closed. While holding the handle by hand to prevent it from springing back, remove the link arms and related parts from the shaft. :$51,1* Be sure to hold the handle, or it may spring back and cause injury. 2) Remove the screws securing the handle to the arms, and pull off the handle.
  • Page 54 * 5HPRYDO DQG 5HSODFHPHQW RI 'RRU To remove: 1) Open the door. Remove the lower screws securing the roller units from inside the wash compartment, then loosen the upper screws. &$87,21 1HYHU UHPRYH WKH XSSHU VFUHZV RU WKH UROOHU XQLWV ZLOO IDOO LQWR WKH UDLOV DQG WKH GRRU FDQQRW EH UHPRYHG ,I WKH UROOHU XQLWV VKRXOG IDOO LQWR WKH UDLOV XVH D SLHFH RI VKHHW PHWDO ZLWK D KRRNHG HQG RU D ZLUH  PP GLD ZLWK D YVKDSHG HQG WR SLFN XS WKH UROOHU XQLWV...
  • Page 55 + 5HPRYDO DQG 5HSODFHPHQW RI 6SULQJ 8QLW 1) Remove the handle. :$51,1* 7R UHGXFH WKH ULVN RI LQMXU\ IROORZ WKH LQVWUXFWLRQV LQ ³,9) 5HPRYDO DQG 5HSODFHPHQW RI +DQGOH´ 2) Remove the frame covers. 3) Loosen the spring unit mounting screws, and remove the operation panel. 4) Remove the spring unit mounting screws, and lift off the spring units.
  • Page 56 6) Adjust the door opening/closing force. See “IV.J. Adjustment of Door Opening/Closing Force.” - $GMXVWPHQW RI 'RRU 2SHQLQJ&ORVLQJ )RUFH The door opening/closing force is easily adjustable as follows: 1) Remove the frame cover. 2) Remove the U-nut. 3) Rotate the door opening/closing IRUFH DGMXVWPHQW VFUHZ ZLWK D ÀDW blade screwdriver to adjust the spring tension.
  • Page 57 . 5HPRYDO DQG 5HSODFHPHQW RI )OXVK 3LSH  5HPRYH WKH UDFN UDLOV XSSHUORZHU ZDVK DQG ULQVH VSUD\ DUPV WDQN ¿OWHUV RYHUÀRZ pipe, and separator. 2) Remove the rack guide. 3) Remove the band. 4) Remove the upper and lower headers.  8QVFUHZ WKH MRLQW WR WKH SXPS GLVFKDUJH RXWOHW WKHQ UHPRYH WKH ÀXVK SLSH 6) To replace, reverse the above procedure.
  • Page 58 / 83DFNLQJ ,QVWDOODWLRQ ,QVWUXFWLRQV &$87,21 Incorrect installation of the U-packings will cause water leaks. 1) Water Supply Pipe and Rinse Pump Connection ‡ 7KH SLSH LV XQGHU SUHVVXUH LQVLGH DQG XQGHU DWPRVSKHULF FRQGLWLRQV RXWVLGH 2) Rinse Water Line Connection Inside Double Pipe ‡...
  • Page 59 3) Header (Rinse Spray Arm) and Double Pipe Connection 0 5HPRYDO DQG 5HSODFHPHQW RI 7KHUPLVWRU &$87,21  7KH WKHUPLVWRUV DUH IUDJLOH KDQGOH YHU\ FDUHIXOO\ 2. 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.
  • Page 60 1 5HPRYDO DQG 5HSODFHPHQW RI &RQWURO %RDUG RU 2SHUDWLRQ %RDUG When replacing a control board or operation board, follow the precautions below. &$87,21  7KH FRQWURO ERDUG DQG RSHUDWLRQ ERDUG DUH IUDJLOH KDQGOH YHU\ FDUHIXOO\ 2. The control board and operation board contain integrated circuits, which are susceptible to failure due to static discharge.
  • Page 61 Stay - OP Unit Frame Mounting Screw Joint - Operation (B) Operation Panel (B) Cable - Operation Tube (B) Connector Operation Board Tube (A)
  • Page 62 9 &OHDQLQJ DQG 0DLQWHQDQFH ,QVWUXFWLRQV $ 'DLO\ 0DLQWHQDQFH ,03257$17 %H VXUH WR FOHDQ WKH GLVKZDVKHU DIWHU FORVLQJ WLPH HYHU\ GD\ ,W LV GLI¿FXOW WR remove heavy soils left overnight. In high temperature conditions, food scraps will rot and affect sanitary operation.  7DNH RXW VFUDSV IURP WKH UHPRYHG WDQN ¿OWHUV DQG ZDVK WKHP FOHDQ ZLWK D VFRXUHU ,03257$17 7R SUHYHQW GDPDJH GR QRW KLW WKH ¿OWHUV RQ WKH VLQN WR GURS VFUDSV RU WR GUDLQ...
  • Page 63 Pump Filter  &KHFN WKH SXPS ¿OWHU LQVLGH WKH ZDVK WDQN If it is clogged, clean it with a scourer. 7) Check the water level sensor. If it is dirty, clean it with a soft brush. Water Level Sensor Location Water Level Sensor Front ,03257$17...
  • Page 64 After the cycle completes, turn the detergent feeder back on. If this is not practical, consult with an authorized Hoshizaki service company. 1) Turn on the gas and water supplies and water heater. 2) Pull out the drain pipe.
  • Page 65 Test Switch from “ON” to “OFF”. 3) If not, move the power switch (GFCI) to the “OFF” position, and contact an authorized Hoshizaki service company.  :DWHU 6XSSO\ /LQH Check the water supply line for damage, deformation, or Water Heater water leak marks (stains).
  • Page 66 Even if there is no problem with its use, a product out of warranty may have a risk of HOHFWULF VKRFN ¿UH RU ZDWHU OHDN GXH WR LQVXODWLRQ GHJUDGDWLRQ RU DJLQJ RI WKH HOHFWULFDO parts. Ask an authorized Hoshizaki service company for the following inspections (charged): ‡ 'XVW DQG GLUW EXLOGXS RU ZDWHU OHDN LQVLGH WKH XQLW ‡...
  • Page 67 ) 6KXWGRZQ &$87,21 If there is a possibility that the ambient temperature may fall below 32°F (0° C) and freeze the unit, be sure to drain Water Heater Dishwasher the unit. The water supply line could be Gas Supply Line damaged and leak water, resulting in Shut-off Valve damage to the surrounding property.
  • Page 68 Hoshizaki service company. :$51,1* 1. When restarting the unit after long storage, contact an authorized Hoshizaki service company. To prevent electric shock, do not restart the unit by yourself. 2. In case of relocation, contact an authorized Hoshizaki service company.
  • Page 69 9, 2SHUDWLQJ ,QVWUXFWLRQV &$87,21 Do not stack racks. Otherwise, this will cause reduction in the washing effect Door or failure. Rack ‡ %HIRUH ORDGLQJ GLVKHV LQ WKH UDFN EH VXUH WR UHPRYH DQ\ OHIWRYHUV H[ PHDW ILVK vegetables), chopsticks, toothpicks, sticks, straws, paper products and plastics from the dishes.
  • Page 70 ‡ 7KH GHWHUJHQW LV IHG E\ WKH GHWHUJHQW IHHGHU QRW SURYLGHG E\ +RVKL]DNL WKURXJK WKH detergent outlet (not provided by Hoshizaki) into the wash tank. ‡ 7KH ULQVH DLG LV IHG E\ WKH ULQVH DLG IHHGHU QRW SURYLGHG E\ +RVKL]DNL LQWR WKH ULQVH water line and sprayed from the upper and lower rinse spray arms into the wash compartment.
  • Page 71 % :LULQJ 'LDJUDP...

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