Bosch Dishwasher SMS25E100G/63 No Heat

[DWSERV]

The heat pump should have a resistance of around 19 – 20 Ω. The heat pump in the dishwasher has a resistance of 22.9 Ω can this influence the control module and prevent it from heating? No visible damage to the control module.

[electrofix]

no that wont change things

Dave

[DWSERV]

Update….. new heat pump and old comparison across all terminals were identical apart from new pump heater reads 19.2 Ω old pump is 22.9 Ω.
No low insulation. Fitted the new heat pump, and it now heats…weird or what. Just glad it’s fixed.

[electrofix]

the heat pump is used as a virtual sensor. if the old motor is worn it will give a different current profile and stop the heater being energised

still done think the odd ohm would stop it heating

Dave

[Author]

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