Bosch washing machine expertise please

[DIYspanner]

Clasixx 1400 Express, WAE28162GB

On the 40° Cotton cycle, it tripped the earth leakage.

I took the back and top covers off but there's no water leakage, nor from underneath when I tilted it sideways.

I used the drain cycle, which includes a spin, to empty the water from the drum and it completed the program. I set it away again on the 40° Cotton cycle again then a few minutes after filling, it tripped again. I then used drain/spin again then used the Freshen/Spin program, both of which completed without tripping the earth leakage.

I suspect there's an earthed part that's used in the wash cycle that needs attention or replacing.

Anyone with Bosch expertise who can advise which part I should look at and where its located please?

thanks

 

[JohnD]

the heating element may be at fault. After initial fill and churn, mine starts heating about 10 minutes after starting a cycle. Does that fit?

does it trip on cold wash, or on rinse and spin?

 

[DIYspanner]

I'll investigate if the heater is the culprit.

I presume that's inside the drum if it needs replacing?

 

[DIYspanner]

Indeed, the heater element seems the culprit. The metre set to 200k Ohms is jumping all over the place when on one of circuit spades and earth and saying 1.5 when on 2M ohms.

The temperature unit has 4k ohms across its terminals so I need to check if that good or bad.

 

[pcaouolte]

The temperature sensor wont trip the power. The heating element will. They are about £20.

 

[DIYspanner]

The temperature sensor wont trip the power.

It could because its metal enclosure plugs into the heater's earthed plate.

Any idea what the resistance of the temp sensor should be?

 

[pcaouolte]

No idea but the resistance should go down as the temperature goes up. The temperature sensor will be a bout £18, the heating element about £20. My moneys on the heating element. Heating elements in our house last about 3 years, I've never changed a temperature sensor (always transferred the old sensor to the new element).

 

[JohnD]

it's usually the heating element.

 

[DIYspanner]

Yes, its certainly the heating element and I've ordered a new one.

It just seemed logical to fit a new temp sensor but a video I found on YT reckons it should be about 6kΩ at about 20° and 1500Ω at 60°. Mine at room temp is about 5k Ω so all seems well so just the heating element to replace.

Thanks All!

 

[DIYspanner]

New heater element installed and working so all good there thanks.

Now, however, it seems the drum bearing set has collapsed so an even bigger project looms. Have seen a video on YT and it seems involved but straight forward.