Suspected Faulty Heater On Bosch Maxx Lifestyle (Wae26470Au)
Hi All,
I think I have a faulty heating element (or associated relay) on my Bosch Maxx Lifestyle (WAE26470AU).
If I disconnect a specific wire on the back of the control panel the cycle seems to proceed normally, but if I leave it connected it cuts out the 240v mains circuit to which it is connected with an RCD fault half a second after the motor engages. It doesn't happen on a cold wash. Can anyone take a look at the pics (with the disconnected wire highlighted) and confirm my theory?
Here's a link to the pics (link) with a description below:
Front panel. Shows control panel on right hand side of detergent bays Shows the back side of the control panel from inside the washer. Orange oval highlights area of focus for picture 3. Shows the back of the control panel with the black connector (highlighted in orange) disconnected from its socket (highlighted in red). RCD faults no longer occur when this wire is disconnected. Shows the information placard on the rear of the unit
Further to that, I have examined this video on how to replace the element (link) is there a specific test I can do without taking the front of the machine off to make sure I am going to order the right part(s)? I have found the element online (link), does anyone know the Bosch part number?
Kindest regards,
Denys
Solution Summary
AI-generated from this discussion
This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Bosch Maxx Lifestyle WAE26470AU suspected heater fault not confirmed
- The problem
- On a Bosch Maxx Lifestyle WAE26470AU washing machine, the mains RCD tripped shortly after the motor engaged on programmes that heat water. The user reported that it did not happen on a cold wash and suspected the heating element or its relay.
- Likely cause
- A heater fault was suspected by the user, but the discussion did not confirm the heating element, relay or any other component as faulty. The accepted reply stated that disconnecting wires and observing different behaviour is not a reliable diagnosis.
- What fixed it
- The accepted advice was to test the heater properly with a meter rather than rely on behaviour with a wire disconnected. No confirmed repair or part replacement was documented in the thread.
- Checks to try
- RCD trip occurred about half a second after the motor engaged
- Fault reportedly did not occur on a cold wash
- User disconnected a specific control-panel wire and reported the RCD no longer tripped
- Accepted advice was that the heater should be tested with a meter
- Parts or tools mentioned
- Heater
- Meter
Safety: Do not bypass wiring or safety systems for diagnosis. Further diagnosis should be carried out by a suitably qualified appliance engineer.
1 Answer
That heater is £56.90 including delivery on the link you posted for Ransom Spares
Disconnecting the wires isn't a reliable way of testing anything and any different behaviour with wires disconnected doesn't usually prove anything one way or the other. The only way to check the heater is to test it with a meter as described in my article. Check out my article here - Washing machine not heating up the water
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