Bosch SHE43P15 Repair Manual Download

Page: 11 / 42

4.1.3.3

Softer bearing (UC/11 and later)

Softer bearing (UC/11 and later) & non-softer bearing (UC/06)
heater assemblies, circulation pumps and sumps

cannot

mixed and matched. Softer bearing heaters don’t fit in older
models and older heaters don’t fit in softer bearing models.

Softer bearing & non-softer bearing heater assemblies are
connected to circulation pumps differently:

•

Softer bearing models (UC/11 & above) have gasket
assembled to heater and have a separate hose clamp
(order #

172272

•

Older models (UC/06) have a separate gasket and do
not have a hose clamp.

4.1.3.4

Top Rack Only

Models with

Top Rack Only

have separate actuators mounted

underneath heater assemblies. The actuator moves a magnetic
float to block the lower rack port, diverting water to the top rack.

Lower

spray arm

Lower spray arm

Magnetic

float

Magnetic float

Magnet

The actuator moves a magnet under the magnetic float so the
north poles align, repelling the magnetic float upward until it
blocks the water flow to the lower spray arm.

Actuator (hot

wax motor)

Actuator (hot

wax motor)

Heater with top rack housing

Both racks

702_58300000148618_ara_en_a

Page 11 of 42

Top rack only

Summary of Contents for SHE43P15

Page 1: ...Reset Cancel drain 7 3 3 Changing basic features on selected units 7 3 4 Entering special programs and coding 7 3 5 Dispenser 9 4 COMPONENTS 10 4 1 Dishwasher components 10 4 2 Operation 26 4 3 Serial label warranty information 26 5 REPAIR 28 5 1 Water valves 28 5 2 Circulation pumps 28 5 3 Controls 31 5 4 Heaters 32 5 5 2 piece drain hose connection 34 5 6 Drain pump removal and installation 34 5...

Page 2: ... customer has the responsibility of ensuring that the dishwasher electrical installation is in compliance with all national and local electrical codes and ordinances The dishwasher is designed for an electrical supply of 120VAC 60 Hz connected to a dishwasher dedicated properly grounded electrical circuit with a fuse or breaker rated for 15 amps Electrical supply conductors shall be a minimum 14 A...

Page 3: ...oor must clear cabinet hardware Determine mounting method based on dishwasher model and countertop type whether top or side mount 2 2 Alignment Gently rest the unit on its back taking care not to crush the drain hose Remove the toe panel s Loosen front feet slightly Remove junction box cover and retain for later use Place dishwasher upright then level side to side and front to back If your dishwas...

Page 4: ...ower cord accessory kit SGZPC001UC Insert cord through a strain relief not included and install to strain relief plate Attach wires to terminal block black L hot white N neutral green G ground Unscrew terminal screws but don t loosen or remove them as they may become damaged Attach wires snugly but don t overtighten 2 4 Water connection Install according to national and local codes Carefully place...

Page 5: ...of the drain hose including leading to an air gap if any is 150 381 cm Make sure a high loop is raised at least 20 51 cm above the floor Drain hose has its own adapter connect directly to plumbing connection and secure with supplied hose clamp Don t connect to condensation hose 702_58300000148618_ara_en_a Page 5 of 42 ...

Page 6: ...he Sanitized light comes on after certain wash programs have finished showing dishes have been sanitized according to NSF standards Check the Use Care manual for your model to confirm which programs qualify as NSF rated The Refill Rinse Agent light shows rinse aid needs to be added 702_58300000148618_ara_en_a Page 6 of 42 ...

Page 7: ...he on off button to save the setting 3 3 2 End of cycle tone The End of cycle tone volume can also be changed Turn the dishwasher off and then push and hold the right Cancel Reset button while turning the dishwasher on release buttons when a tone sounds or the right Cancel Reset button LED lights up Pushing the right Cancel Reset button changes the setting push it until the tone is at the desired ...

Page 8: ...possible depending on the model HINT Customers pushing and holding Cancel Drain or Cancel Reset buttons while turning dishwashers on can see strange displays Whenever you get call about a strange display check if the customer put the dishwasher into the test program or some other program 3 4 4 Sales demo showroom program 3 4 4 1 Entering sales demo program Enter the special program mode see sectio...

Page 9: ... the fine filter screen 3 4 4 3 Preparing a showroom dishwasher for resale To return the dishwasher back to it s original condition for resale enter the special program mode see section 3 4 Push button B repeatedly until the display shows sales demo program mode P4 Push button C to confirm it Push button B repeatedly until the display shows the original dishwasher code e g C1 C2 etc Push button C ...

Page 10: ... space and allowing taller tanks holding larger dinner plates Flow through heaters prevent dishware damage from exposed elements and allow water to be continuously filtered and heated Heating element Seal NTC Hi limit To upper spray arm To lower spray arm From circulation pump Filtered water from the sump flows through the circulation pump into the flow through heater All heaters are protected by ...

Page 11: ...er 172272 Older models UC 06 have a separate gasket and do not have a hose clamp 4 1 3 4 Top Rack Only Models with Top Rack Only have separate actuators mounted underneath heater assemblies The actuator moves a magnetic float to block the lower rack port diverting water to the top rack Lower spray arm Lower spray arm Magnetic float Magnetic float Magnet Magnet The actuator moves a magnet under the...

Page 12: ...European disk shown which is different than U S disk Bottom view Where plunger engages heater Where plunger engages sump Models with water switches need stronger circulation pumps 437345 with separate motor starters 182318 Circulation pumps heaters sumps for water switch non water switch models can t be interchanged 4 1 4 Circulation pumps Bosch dishwashers use separate circulation and drain pumps...

Page 13: ... for use with heaters with water switches and sumps with extra filter cylinder It uses a separate motor starter 182318 attached to the motor terminals It can use 167085 impeller kit The PTC circulation pump motor starter cuts out the start winding after the motor starts 4 1 4 3 Sicasym UC 21 through present 8mm nutdriver Most common pump used starting with UC 21 index Smaller than 239144 Sisme pum...

Page 14: ...xcept for models where E5 motor speed error 4 1 6 Drain pump Drain pumps are mounted to sumps in the front of dishwashers they re easily accessible from the front of dishwashers by removing toe kicks 4 1 6 1 Pump specifications Drain pump is rated 120V 60 Hz 35W 0 85A 4 1 6 2 Solving installation issues Often improper installations not drain pump issues cause dishwashers to not drain properly Must...

Page 15: ...p pulling waste water back into the pump Sump check valves along with air gaps high loops prevent siphons from being created 4 1 6 5 Terminal connections Drain pump terminals were changed from spade type to Rast 5 connectors during November 2006 and can t be interchanged 4 1 6 5 1 Spade terminals UC 42 and before Wire harnesses to drain pumps have locking spade terminals which must be released usi...

Page 16: ...d from the left side by just removing the left side panel It can be a pressure fill with diaphragm or time fill depending on model 4 1 7 1 Pressure fill Pressure fill assemblies use a diaphragm to accurately measure water levels During normal fill rising water compresses air in a chamber until the diaphragm operates when the proper water level is reached If water overfills the float shown in red b...

Page 17: ...art tolerances to insure consistent water levels Time fill valves can replace pressure fill valves but pressure fill valves can t replace time fill valves 4 1 8 Condensation tube The condensation tube is crucial for condensation drying which dries dishes without a heating element in the bottom of the tank Starting with UC 12 condensation tubes were moved from the dispenser to the right side of the...

Page 18: ... doors will need door springs changed The following chart shows when to adjust tension screws and when to replace door springs Door Wood Panel Weight Existing Door Spring Less than 5 5 lbs 2 5 kg 5 5 to 9 lbs 2 5 to 4 1 kg 9 to 15 lbs 4 1 to 6 8 kg 15 to 18 lbs 6 8 to 8 2 kg 18 to 21 lbs 8 2 to 9 5 kg Violet 168568 Change to 173696 Yellow spring use tension screw if needed Change to 168576 Blue sp...

Page 19: ...ushings hold doors in place at hinges Older hinge bushings used a separate lock Newer hinge bushings have latches holding doors in place Bushings have different diameters and can t be mixed Bushings can be changed as long as matching hinge levers are used Replacement Hinge Levers and Bushings Side Part Description Replaced by Description Left 492033 Lever 14mm 494876 165296 Lever bushing 15mm Left...

Page 20: ...tting controls Contacts 5 6 reset the control Whenever a control won t reset or won t go into wash programs check the on off switch and jumper Replace switch and jumper if they re faulty 4 1 13 Door latch Other than occasional misalignment the only door latch repairs will be replacing microswitches Door latches are held in place in console frames by tabs It s important latches are properly seated ...

Page 21: ...in hose during installation is connected to the internal drain hose with the 90º elbow pointing toward the customer drain The external drain hose connects directly to the customer drain system without an adapter 4 1 17 Dispenser The dispenser is located near the top of the inner door and reliably dispenses detergent and rinse aid During each wash program the wax motor opens twice once to dispense ...

Page 22: ...xt wash 4 1 17 2 Optical dispensers Optical dispensers are connected differently and can t replace reed switch dispensers With rinse aid present the optical receiver senses a diffused light beam When rinse aid has run out the optical receiver senses a strong light beam TIP It s possible for some clear rinse aid brands to not diffuse light adequately to show rinse aid isn t needed 702_5830000014861...

Page 23: ...t through a dispenser dial 4 1 18 Aqua sensor The aqua sensor is located behind the sump to the left of the heater It s a two piece assembly with a small circuit board in a plastic housing It senses water cleanliness and allows the dishwasher control to remove pre wash and or pre rinse cycles to save energy 20 energy savings If water is clean enough it will be kept for the wash cycle If not the aq...

Page 24: ...right side The power module controls the circulation and drain pumps while the control module controls the wash programs 4 1 20 Sump parts 4 1 20 1 Sump The sump contains a filter screen large item coarse filter and micro filter The sump holds the drain pump cover and suction cap The suction cap used only with Sicasym circulation pumps provides a proper flow rate of water through the sump Display ...

Page 25: ...ll 165262 TIP When washability issues arise replace check valve along with other repairs 4 1 20 3 Spray arm feed tube When water doesn t spray from upper spray arms check feed tube where it enters the sump Occasionally the joint between the feed tube and its base can loosen the entire feed tube must be replaced New valve 4 1 21 Info lights Many high end models have models have info lights which sh...

Page 26: ...t shuts off the heater if the water gets too hot The backflow valve prevents waste water from entering the dishwasher 4 3 Serial label warranty information The serial label located on the right side of the inner door contains the dishwasher model serial and index KI s Aqua sensor NTC Hi limit 4 3 1 Understanding the FD customer serial Heating element To upper spray arm This is the serial used for ...

Page 27: ...represent a factory code 10 New Bern dishwasher 82 New Bern cooking The 3rd represents the last digit of the year 3 2003 The next 2 s represent the month 03 March The next 7 s represent the model 0081344 SHY99A05UC The next 5 s represent the unit made that month 00011 11th SHY99A05UC made that month The last represents a check digit 5 in this case is dependent on all preceding s 702_58300000148618...

Page 28: ...ting On valves with vertical solenoids the plastic can crack and cause leaking if excessive force is used Using Teflon tape on water fittings can help prevent leaking The water valve can be accessed without removing outer door or base cover However removing them will provide easier access 5 2 Circulation pumps The circulation pump is accessed from the right side of the dishwasher by removing the r...

Page 29: ...nel and lift out Blocking the tank up makes it easier 5 2 4 To raise tank for circulation pump access Tools needed T20 Torx screwdriver and pliers 1 Remove one T 20 Torx screw from both rear corners holding tank to base 1 removing screw from both sides allows tank to be blocked upward 2 Remove right toe kick bracket by removing T 20 Torx screw 2 3 Remove T 20 Torx screws from front right bottom co...

Page 30: ... on the capacitor 5 2 6 To install impeller kit 167085 Tools needed flat blade screwdriver 1 While holding motor fan so shaft won t spin 1a unscrew impeller counterclockwise 1b 2 Rotate pump housing counterclockwise until tabs clear then lift housing from motor 2 3 Remove spring and O ring from pump housing then lift spacer up from motor shaft 3 4 Place replacement spacer onto motor shaft 3 Note l...

Page 31: ...o Dishwashers must be pulled out to change controls Dishwashers must be pulled out to measure voltages resistances 5 3 2 1 To access base mounted controls Tools needed T 20 Torx screwdriver pliers 3 Remove outer door see section 5 2 1 1 4 Remove toe kick see section 5 2 1 2 5 Remove right left side panels see section 5 2 1 3 6 Raise right side of tank see section 5 2 1 4 5 3 2 2 To remove base mou...

Page 32: ...to top latches then push bottom of display up and rotate it into bottom latches 5 4 Heaters The heater NTC can be accessed or measured from the right side of the dishwasher but can only be removed by dropping the entire base by flipping the dishwasher on its back since they are wedged underneath the tank 5 4 1 For access to heaters NTC s Tools needed T 20 Torx screwdriver pliers 1 Remove outer doo...

Page 33: ... pump heater hose clamp and remove two 2 T 20 Torx screws holding heater assembly to sump 2 Carefully pull heater from sump pump The heater comes as an assembly with housing gasket 3 Note connections remove NTC cover and disconnect wires from heater flow switch NTC Hi Limit 4 Push NTC latches and lift NTC from heater 5 To remove flow switch carefully pry housing away from switch until tabs clear s...

Page 34: ...rd the drain and is held in place by a hose clamp To remove the internal drain hose remove a white plastic hose lock and pull the hose from the water level control 5 6 Drain pump removal and installation To access pump disconnect inlet hose and pump harness To remove pump 1 pull latch on circular collar 2 rotate pump clockwise cw 1 8 turn and 3 pull out pump To install new pump insert 2 00 positio...

Page 35: ...d with latches and door latches get reset 5 7 3 Miswired door latches If replacement SHV46 66 SHU995x SHV68 SHX33 43 46 SHY56 66 or SL95A door latches wire harnesses are miswired with door latch terminals backwards dishwashers run with doors open and lights won t turn on when doors are open Controls can be irreversibly damaged 5 7 3 1 Rewiring door latches Check wiring to photos below the double w...

Page 36: ...he test program can only be stopped reset by pushing the on off button it can t be done by turning off the power 6 1 2 Error code displays Error codes can be found using the customer service test program Most dishwashers will show the following error codes For dishwashers without digital displays the LED s column will show the light displays for each error code If there is more than one error code...

Page 37: ...m model to model Consult the test program for your model The one below is an example of a typical test program Push button B to skip a step DP Drain pump MP Main circulation pump Disp Dispenser H Heater WSP Water switch position VF Water fill F1 water fill switch AQS Aqua sensor UR Upper rack LR Lower rack ...

Page 38: ...P Current can be measured through the red heater wire at the control or heater 9 5A There can be more than one red wire so check the wiring diagram to select the heater wire NOTE Open door to run test program for fully integrated models 6 2 2 Controls timing out and showing 1 Occasionally dishwashers can run for hours not finish washing show a 1 in the display This means the module has timed out d...

Page 39: ...problems Checklist if water leaks past doors Make sure condensation tubes are inserted into bases not connected to drains or air gaps Clear and drain condensation tubes including debris in bases Re drill wood doors to make them square Straighten kinks in condensation tubes Educate customer on oversudsing from too much detergent rinse aid or overly soft water Level dishwasher before attaching under...

Page 40: ...s being overtightened A damaged valve can allow some water onto kitchen floors 6 2 6 Customer self help diagnosing Dishwashers may occasionally exhibit problems unrelated to a dishwasher failure The following fixes can be made by customers without calling for repair 1 Dishes do not dry The rinse agent dispenser may be empty Check the rinse aid dispenser and refill it if necessary Dishware drying c...

Page 41: ...ensed 10 Rattling noises Utensils may not be properly arranged 11 Suds in dishwasher The customer may have used the wrong type of dishwashing detergent Use only automatic dishwasher detergents 12 Unsatisfactory washing results a Incorrect amount of detergent b Utensils incorrectly arranged or rack overloaded c Spray arm rotation blocked by utensils d Spray arm nozzles need cleaning e Filters not p...

Page 42: ...ctor 35μF capacitor Circulation pump ratings two winding motor 120VAC 60 Hz 160W 21 HP insulation class A with auto reset thermal protector 10μF capacitor Drain pump ratings 110 127 VAC 60 Hz 35W 84A 17Ω 9 vane 4 vane older 6 vane pump have same ratings Water inlet pressure range From 5 120 psi 3 8 27 bar Circulation pump flow rate Approximately 60 liters minute 15 85 gallons minute at a pressure ...

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