BOSCH 500 SERIES DISHWASHER Water Not Heating
| CONF | DIAGNOSIS | PART MATCH | ACTION |
|---|---|---|---|
|
85%
CONF
|
Circulation Motor with Integrated Heater (Heat Pump)
In this model, the heating element is an integrated flow-through component of the circulation pump. The most common failure mode is a break in the resistive coating due to thermal cycling or mineral deposit buildup causing localized hotspots and subsequent burnout. Replacing the entire pump assembly is the only way to restore the heating circuit as the heater is non-serviceable.
SKU: 12008381
|
|
CHECK PRICE
#CommissionsEarned
|
|
10%
CONF
|
Power Control Module
The control board utilizes a high-amperage relay to switch power to the heater. Over time, the mechanical stress of switching and the heat generated at the solder joints can cause the relay to desolder itself or the internal contacts to pit and carbonize, resulting in an open circuit that prevents power from reaching the heating element.
|
|
CHECK PRICE
#CommissionsEarned
|
|
5%
CONF
|
Temperature Sensor (NTC)
The Negative Temperature Coefficient (NTC) sensor provides feedback to the control board regarding water temperature. If the internal thermistor's resistance drifts significantly high, the control board will erroneously detect that the water has already reached the target temperature, failing to energize the heating circuit despite the water actually being cold.
SKU: 00645033
|
|
CHECK PRICE
#CommissionsEarned
|
DIY Repair Guide
Watch exactly how to replace the Circulation Motor with Integrated Heater (Heat Pump).