Hobart KitchenAid KD-18 SERIES, Service Manual

Page 1: ... DESCRIPTION Built In Models KDC 18 KDI 18 KDP 18 KDS 18 34074 34073 34162 34072 Custom Imperial Patrician Superba Dishwasher Sink Combinations KDC 38 34076 KDS 38 34077 Custom Superba Convertible Portable Models KDC 58 KDI 58 KDS 58 34112 34111 34110 Custom Imperial Superba TROY OHIO 45374 ...

Page 2: ...ssy Kickplate Adjustment Lower Door Baffle Lower Front Panel Middle Wash System Mo r Outer Door Panel Overfill Control Switch Overfill Protection Float Standpipe Program Switch Pump and Shaft Seal Installation Rinse Agent Dispenser Self Cleaning Filter Service Tips Sheath Heater Tank Seal Assembly Thermostat Thermal Protector Timen Timer Sequence Charts Upper Rack Track Wiring Harnesses Wuh Pump W...

Page 3: ...SELL SfiWice SERVICE SeUb ...

Page 4: ...in at a later date using KD 18 conversion instructions All KD 18 series dishwashers have automatic de tergent dispensers pump out drain systems and Sanitized Flo Thru Drying systems Fig 4 A separate fan and heating element outside the wash chamber circulate heated air during the Dry phase of each cycle IPL 139951 Fig 3 The KDS Superba model has a sixteen position upper rack with stay put flex a di...

Page 5: ...oor 2 Latching the door by pushing the handle down 3 Pushing the desired Cycle Selector Button All built in models start instantly The SUPERBA and PATRICIAN models have Action Indicator Lights 1 Fig 5 KDS and 4 Fig 5 KDP are located on the left side of the Control Panel As the dishwasher progresses through a cycle a light will appear above the word indicating the part of the cycle in which the dis...

Page 6: ...or 2 Screw adapter A Fig 6 furnished in kit to faucet 7 3 Pull hoses and coupler from hide away com partment at the back of the dishwasher and attach coupler B Fig 7 to adapter A Fig 7 by depressing outer ring C Fig 7 When adapter and coupler are joined release outer ring which snaps upward for snug fit Fig 7 Faucets with Internal Threads Fig 8 Fig 8 I Remove faucet aerator 2 Screw faucet adapter ...

Page 7: ...the operator if an internal electrical malfunction should occur It is essential that the electrical outlet into which the 3 pronged power cord is inserted be properly grounded If this is in doubt a competent 8 electrician should be contacted to check the outlet Fill and Drain Hoses Fig 10 CAUTION INCORRECT REPLACEMENT OF EITHER FILL OR DRAIN HOSE ASSEMBLIES ON CONVERTIBLE PORTABLE KITCHENAID DISHW...

Page 8: ...ntrol panel practically all parts are accessible without moving the dishwasher from its installed position These instructions cover all models of the KD 18 series dishwashers however all the components 9 that are listed may or may not be used for each model NOTE 1 CAUTION ALWAYS DISCONNECT ELECTRICAL POWER SUPPLY BE FORE REMOVING ELECTRICAL COMPONENTS 2 NEVER reuse gaskets or sealing washers ...

Page 9: ...ds one of the pre rinses can be turned into a pre wash by adding detergent to both compartments of the detergent dispenser Total Time 72 minutes plus automatic timer advance 2 minutes Water 11 9 gallons SOAK N WASH CYCLE Used to wash and dry hard to clean pots pans and casseroles along with regular tableware This cycle provides one pre rinse one wash with soak period one rinse one wash and three a...

Page 10: ... dry of the load Detergent should be added to both compartments and front indenta tion of the detergent dispenser A few incrusted or burned on food soils may not be completely removed as a more abrasive action is necessary Total Time 108 minutes Water 15 gallons SANI CYCLE Used when extra sanitizing is de sired This cycle has three pre rinses one main wash three after rinses and dry It washes and ...

Page 11: ...emove door handle 4 Lift off control panel TIMERS All KDC KDI KDP KDS dishwashers have the timers located behind the control panel 3 Fig II Timers are sometimes needlessly replaced when another component is at fault due to incorrect diagnosis Thoroughly check timer before making replacement If after making a timer replacement the problem was not corrected remove this replacement and reuse the orig...

Page 12: ...KDP 18 timer has a direct drive motor and also a rapid advance motor The timer has a dial face printed around the timer socket 4 Fig 15 The notch on the socket points to the part of the Fig 14 13 Fig 15 cycle in which the timer is then operating Check timer operation by comparing it with the oper ation of the components programmed for each part of that cycle The KDP 18 uses multiple connector plug...

Page 13: ...2 Loosen ground screw Drain Valve Two types of drain valves l 2 Fig 18 are currently being used Your dishwasher may be equipped with either drain valve shown The electrically operated drain valve Fig 18 is normally closed It is energized and opens during each drain period permitting the drain pump to remove water from the tank To determine if the solenoid is faulty place a test Fig 17 lamp across ...

Page 14: ...t passing through the fill valve during the fill period first make certain voltage is reaching each solenoid and that the solenoid is operative The solenoid may be checked as pre viously outlined under Drain Valve Voltage JPL 140061 DOOR SPRING BRACKET Fig 20 between the timer and fill valve must pass through the overfill control switch which is normally closed If the solenoid is functioning as it...

Page 15: ...ront comer of the tank To dissassemble from dishwasher I Remove lower front panel 1 Fig 11 2 Remove overfill control float I Fig 23 3 Remove standpipe nut 2 Fig 23 from inside tank 4 Remove standpipe 4 Fig 23 and gasket 3 Fig 23 from beneath tank 5 When reassembling standpipe make sure gasket is on stem before inserting stem through the tank 6 Using a tool securely tighten standpipe nut 2 Fig 23 T...

Page 16: ...lots Lower unit to withdraw beneath tank opening 3 Move unit to front of machine and dis connect electrical leads To remove KD 58 models only See Fig 27 I Remove lower front panel 1 Fig 11 2 Tilt dishwasher to rear at 45 angle Dish washer should be braced on box or similar object 3 Loosen two screws holding assembly to frame 1 Fig 27 4 Disconnect electrical leads and remove dryer assembly from und...

Page 17: ...oosen mounting screws and rotate unit counterclockwise to clear mounting screws Lift out blower unit 4 Loosen set screw and pull blower fan wheel 1 Fig 28 from motor shaft 5 At reassembly make sure dryer blower motor cover 2 Fig 28 is in place WASH PUMP DRAIN PUMP AND MOTOR SHAFT SEAL REPLACEMENT It is not necessary to remove the motor from the dishwasher to install the wash pump drain pump or mot...

Page 18: ...upper spray supply hole is directly above the rubber overhead connector The recesses in the lower pump housing must be in alignment with the motor mounting plate bosses over the drain housing NOTE Assemble the four bearing spacers Part No A 1 02652 1 Fig 32 furnished in the kit on top of the lower pump housing with four retaining screws removed in disassembling the wash arm support 5 Assemble wash...

Page 19: ...om p t 6 Withdraw complete motor and pump unit from inside wash tank To reinstall motor I Motor and pump unit must be installed with arrow on motor mounting plate and word FRONT centered in the tank and positioned to the front of the dishwasher 2 Install motor and pump unit as a complete assembly from inside the tank 3 Moisten the complete surface of motor mounting plate gasket 7 Fig 29 and area i...

Page 20: ...nel and lower front panel 2 Remove door vapor shield 3 Remove evaporation channel 4 Remove program switch bracket 21 5 Remove timer 6 Disconnect leads in door to action indicator lights all switches dispensers door frame ground rinse agent dispenser ground and multiple connector plugs one white 3 Fig 38 and one black 4 Fig 38 On KDS and KDP also disconnect lead to rinse only light 7 Disconnect all...

Page 21: ... handle latched and the normal cycle button depressed check for correct clearance The clear ance between one side of the cancel spring and the switch cancel lever cap should be 1 32 to 3 32 Fig 38 with the other side of the cancel spring just contacting the program switch cancel bar The program switch cancel spring is removable for adjustment by unsnapping it from the riveted anchor Pull out on ta...

Page 22: ... 4 Remove retaining screws 5 Open door and lift out dispenser assembly 6 Reassemble bimetal unit to just touch or have 1 64 clearance from stop on swing arm Fig 42 NOTE At reassembly use new detergent dispenser gasket Upper Rack Track 2 Fig 41 1 Pull track forward to bumper stop Lift tab from detent hole and remove stop retaining stud 1 Fig 41 2 Pull track forward releasing bumper With draw track ...

Page 23: ...on box or similar object 2 Remove lower front panel Fig 45 3 Place suitable container under hose con nections both fill and drain hoses at the fill and drain valves 4 Disconnect hoses from fill and drain valves 5 Drain hoses into container Electrical Cord with Reel KDI 58 KDS 58 Only 2 Fig 44 To remove power cord with reel 24 I Remove two mounting screws 1 Fig 45 from power cord housing 2 Remove p...

Page 24: ...wo mounting screws 2 Fig 47 from cord housing 2 Remove power cord housing 1 Fig 47 from cabinet and push end of cord through cord housing slot 3 Locate cord clamp at top corner of dish washer and disassemble clamp by removing one screw 4 Disconnect power cord electrical leads and frame ground To reassemble reverse removal procedure NOTE Make sure power cord is properly positioned in cabinet for ea...

Page 25: ... as conductors under some conditions CONVERSION OF KD 58 MODELS Conversion of the KD 58 Convertible Portable models to undercounter installation requires special instructions Complete instructions for both the conversion and the undercounter installation are provided REMOVAL OF TOP Fig 49 I Remove retaining screws I Fig 49 from 26 Fig 49 top anchor mounting brackets and front of wraparound housing...

Page 26: ...ign rack wheels into same plane on each side by eye Use hands rack is flexible 3 1 Stretch or squeeze rack to make dimension 20 5 8 over outside edge of rollers 4 1 Add or remove spacers to align tracks and remove distortions a There should always be one LESS spacer on the rear track roller screws than on the front Actual numbers differ depending on production loca tion 1 1 Some visible water vapo...

Page 27: ...y stuck If dishwasher equipped with check valve 8 Blower Fan improperly positioned on shaft 1 Water too hot 2 Thermostat inoperative 3 Program switch malfunctioning 4 Erratic timer operation 1 Not enough water REMEDY 1 1 Remove foreign matter 2 1 Replace drain valve 3 1 Replace drain valve 4 1 Replace timer 1 1 Replace water inlet tube and or air gap as necessary 2 1 Clean fill tube 3 1 Replace ai...

Page 28: ...n not pushed 3 Timer has not reset REMEDY 2 1 See 4 Way Hydro Sweep does not turn at proper speed 3 1 See filling detergent dispenser in Use and Care Guide 4 1 Set water heater so that water tempera ture is 140 160 F at the dishwasher 5 1 Try various brands of detergents See I Use and Care Guide I 6 1 See operating instructions Use and Care Guide 7 1 Remove and clean strainer assembly i 8 1 Check ...

Page 29: ...frame 1 Timer malfunctioning l Low water flow pressure 2 Fill valve strainer dirty 3 Fill tube of air gap clogged 4 Fill valve or overfill control switch inoperative 5 Timer inoperative on fill cycle 6 Kinked hose portable 7 Faucet adapter clogged portable REMEDY 4 1 Replace door interlock switch 5 1 Replace door interlock switch 6 1 Check program switch cancelling lever and correct or replace lev...

Page 30: ...equired 5 Program switch has been bumped after program selected or switch malfunctioning 6 Timer malfunctioning 7 Damaged drain impeller REMEDY 1 1 Disassemble and clean shaft 2 1 Replace dispenser assembly 3 1 Replace timer 4 1 Replace bimetal unit 5 1 Adjust bimetal unit 1 1 Remove obstruction 2 1 Replace damaged impeller 3 1 Remove obstruction or replace drain valve 4 1 Replace program switch 5...

Page 31: ...0 X 0 X X X CLOSED 0 OPEN t w w a X HS TH 0 14 T3 0 11 12 OPEN OR CLOSED CONTACT INDE PEN DENT OF BUTTON IPL 14032 1 u X J m Ll OS I DOOR ISWITCH I J 0 w a THERMO PROTECTOR TH TH L __ _j BLACK u D t TAN WHITE LlJ 0 PROGRAM SWITCH X J m 14 ORANGE WHITE I BLAC K L_ _ _ _J RINSE AGENT DISP DOOR r l I I LT J WHITE I BROWN CROSS CHANNEL PUMP _ ____ a a I EARTH GROUND GROUNDING SCHEMATIC WHITE I PUMP L ...

Page 32: ...K DOOR SWITCH REO PROGRAM SWITCH THERMO PROTECTOR l TH_L_ j T H BLACK j_ 1 T4F BROWN WHITE T4 F 1 I I T 3F OK BLU E WHITE T 3F l I I I I r I HS TAN I WHITE WHITE I OK BLUE T4 T3 ORANGE n 12 WHITE I BLACK L_ _ _ j WHITE I BROWN 14 RINSE AGENT DISP r I I I I L J I DOOR CROSS CHANNE L PUMP BL BL AH AIR AH WHITE L2 HEATER BLOWER r TAN BL 1 MOTOR FILL OK BLUE PINK I 0 OVERFILL F FILL F l OMITTED ON KOI...

Page 33: ...I I 14 wl oL DRYL e 1 1 _ __ RO oJ I w I I 1 0 I w WL RED L L _j t r t o o WT RL PINK PUMP MOTOR i t _p I wl DL OK BLUE r 1 L I K wl P _ LIGHT BLUE P j j TAj TM I I I I I I w DCI PURPLE DCI rY D _1 c I wl DC2 RED WHT P RE l _j I I I I I ET CUP L 14 J 16 OK BLUE I WHITE 16 I DC 2 DC 2 I f r I 0 WASH OMITTED ON KDP 8 L__ __ l_ o L17 BR OWN 17 H II DET CUP I r FFILLF i 1 LIB WHITE BROWN IB f I OK BLU...

Page 34: ... 14 16 I X 0 X 0 0 0 0 0 14 17 __ t BROWN DK BLUE RINSED ONLY LIGHT L 1 BROWN WHITE o X 0 0 0 0 0 0 I4 15 L__ _ X 0 X X X X 0 0 CP P OIOIOIO IOIO IXI 6IO X CLOSED 0 OPEN M MOMENTARY TA P CLOSED UNTIL ANOTHER BUT TON IS PUSHED OPEN OR CLOSED CONTACT INDEPENDENT OF BUTTON RINSE LT BLUE PINK TAN WHITE RED AGENT CROSS WATER PL 14 f3I 9 2 9 g l J 9 EARTH GROUND GROUNDING SCHEMATIC BLACK e71 tole7 L _ _...

Page 35: ...X 0 30 26 45 SCAVENGER XX 20 7 5 PUMP OFF X 2 55 30 0 BLOWER X X 0 10 30 10 AIR HEATER X XX 2I 50 52 0 BLOWER ONLY X X 7 20 59 20 RESET X 2 5 61 25 KDC RINSE HOLD CYCLE PROGRAM Time p R 0 s 0 G E Per Total Elapsed R 2 Event at End of Event E Event s s f P Cl Min Sec Min Sec s PUMP XX 0 40 0 40 j FILL XXX 0 56 1 36 PUMP XX 0 30 2 6 DRAIN XX X 0 45 2 51 PUMP XX 0 24 3 15 RESET X 58 10 61 25 36 These...

Page 36: ...0 25 7 BLOWER ONLY X X X 16 26 71 26 RESET X X 2 41 74 7 KDI RINSE HOLD CYCLE PROGRAM Time p I 8 R 0 l G 8 Per Total Elapsed R u16 5 Event at End of Event E Event 9 e s s s E o p r Q Min Sec Min Sec s PUMP XX X 0 50 0 50 l F1LL XX XX 0 58 1 48 PUMP XXX 0 20 2 8 DRAIN XXX X 0 45 2 53 PUMP XXX 0 27 3 20 RESET XXX 70 47 74 7 37 These charts show which com ponents are energized and should be functioni...

Page 37: ...7 I 30 30 4 35 I 0 0 27 I 30 I 0 0 27 I 30 0 27 0 I 0 0 45 43 0 50 0 15 0 30 23 I 15 0 9 19 51 3 0 2 41 Time p R 0 Total Elapsed G at End of R Event E s Min Sec s 0 50 1 I 48 2 53 5 12 5 16 14 34 24 7 25 7 25 34 l 26 46 27 31 27 58 29 28 29 51 l 34 26 35 26 35 53 37 23 38 23 38 50 40 20 l 4 20 41 47 42 4 43 8 43 45 44 30 45 13 46 3 46 18 46 48 47 II j 48 26 48 26 68 26 71 26 74 7 38 These charts s...

Page 38: ... 29 9 15 X 0 21 9 36 X I 36 X 0 38 11 14 X I W I X I 0 X 4 4 X I Q X 0 40 X I 30 X 0 0 X I 0 X 0 39 X I 30 X 0 29 X 0 3 X I 0 X 0 46 X 0 55 X 0 20 X 0 52 X X X X XX X X X X 0 0 30 0 18 0 I 0 11 22 I 13 21 0 43 0 3 18 44 20 4 22 24 23 3 4 3 25 2 25 5 6 26 51 7 46 28 6 28 58 29 28 29 58 30 16 31 31 18 53 19 66 40 6 23 39 These charts show which com ponents are energized and should be functioning dur...

Page 39: ... at End of Event Sec Min Sec 13 0 13 18 I I 19 I 50 55 2 45 39 3 24 30 4 54 18 12 37 6 49 50 39 0 13 39 36 23 15 0 15 39 54 30 26 24 0 28 24 30 32 I4 32 0 36 32 40 37 I2 30 38 42 30 3 12 0 40 12 39 40 51 30 42 21 38 43 59 0 44 59 39 45 8 18 46 56 30 48 0 46 48 46 55 49 41 20 50 I 30 51 23 30 51 53 18 52 11 51 53 2 11 5 I I 75 14 21 88 5 43 89 18 3 40 p R 0 G R E s s j These charts show which com p...

Page 40: ...LL 1ST AFTER RINSE X XX X 1 30 12 54 PUMP X X X 0 34 13 28 RAPID ADVANCE X XX X 0 3 13 31 UMP X X 0 15 13 46 DRAIN X X X X 1 0 14 46 PUMP X X X 0 39 15 F1LL 2ND AFT ER RINSE X XX X 1 18 16 43 RINSE GENT DISP X X X X 1 30 17 4 P UM P X X X 0 46 18 33 DRAIN X X X X 0 55 19 28 PUMP X X X 0 20 19 48 PUMP OFF X X 0 52 20 40 UMP X X 0 30 21 10 DRAIN SCAVENGER X X X X 0 30 21 40 PUMP X X 0 18 21 58 PUMP ...

Page 41: ...n for 60 seconds and Off for the remaining 25 seconds of the 90 second interval When a rapid advance occurs im mediately before the S I S subtract 5 seconds from the rapid advance time and subtract remainder fro m the 60 seconds to determine features time S Sub Interval Switch 42 These charts show which com ponents are energized and should be functioning during each period of the program cycle REM...

Page 42: ...terval When a rapid advance occurs im mediately before the S I S subtract 5 seconds from the rapid advance time and subtract remainder from the 60 seconds to determine features time S Sub Interval Switch 108 43 These charts show which com ponents are energized and should be functioning during each period of the program cycle REMEMBER In addition to the timer certain other switches also control the...

Page 43: ...e plus water heating time s hold for heating water Sub Interval Switch s 0 I I ci X X X X X X Ttme p R 0 Per Total Elapsed G Event at End of Event c s r2 Min Sec Min Sec s 0 I 0 I j I 30 0 11 1 41 3 0 0 2 3 2 4 30 0 13 4 43 6 0 1 30 7 30 1 3 10 30 12 0 1 30 13 30 1 30 15 0 j 3 0 18 0 I 30 19 30 21 0 I 30 22 30 0 1 22 31 24 0 1 30 25 30 1 1 30 27 0 28 30 0 0 3 0 I 30 33 0 34 30 j I 30 36 0 37 30 22...

Page 44: ...of E Event S Min Sec Min Sec s X 0 I 0 I l 30 0 Ill 4lf 0 X 0 40 3 40 n 0 32 4 30 X o 2 45 These charts show which com ponents are energized and should be functioning during each period of the program cycle REMEMBER In addition to the timer certain other switches also control the electrical power supply These are 1 the door interlock switch 2 the over fill control switch 3 the program switch and 4...

Page 45: ...0 X o 2 KDS PLATE WARM CYCLE PROGRAM at End of Event Min Sec 0 31 0 3 0 4 30 6 0 7 9 0 9 3 10 30 12 0 13 30 15 0 15 3 16 30 18 0 19 30 21 0 22 30 24 0 46 30 51 0 52 30 Time c l 3 I o 5 lg X c s 7 0 X t c Event i_E El c o a RAPID ADVANCE 53 X X XX IRAPID ADVANCE AIR HEATER BLOWER 12 X XX RAPID ADVANCE 3X REZERO I X RAPID ADVANCE 2 after door latch is lifted Pump pauses for three 1 second periods in...