Bosch condenser dryer not drying after support wheels fixed

[Badger_Boom]

Our Bosch condenser dryer (WTR85V21GB) developed a bad grating rumble a couple of weeks ago. It being well out of warranty and me being an adventurous type I decided I'd try and repair it myself.

Replacing the drum bearing didn't solve the problem, and a bit of research suggested the drum support wheels might be the culprit, and after changing them a couple of days ago it now turns freely and runs quietly.

But... now it doesn't dry properly. It doesn't seem to get as warm as it did before and after running for about four hours yesterday there didn't seem to be much if any water in the condensation container.

I have clearly created a new problem (not surprising given how much dismantling was required to get the drum out), but has anyone got any suggestion for what to check next.

 

[Wayners]

FYI.
We stopped using our tumble dryer and use a dehumidifier in a room.
Consider that for the future.

As for your problem I don't know. You can normally tell if bearing has gone but I don't know about support wheels.
You might need to get a multi meter and do some continuity testing and volt testing. Has the element got power and is it ok

 

[Gasguru]

It's a heat pump dryer.
Are you cleaning the moisture sensor and evaporator filter (behind the lower cover) on a regular basis ?