Siemens HB90554GB/01

[ChrisR]

Hi Guys.
Real strange one this.
Main oven fan motor sometimes fails to run but element heats up as normal.
Every time I tried it the motor ran fine so it’s a mystery.
Before I start swopping different things,has
anybody come across this problem?.
Thanks.
Chris.

[Alanj]

Re: Siemens HB90554GB/01

I would say fan motor. Sometimes the shaft of the motor gets clogged with baked in grease, restricting movement. Maybe just windings have gone.

[ChrisR]

Re: Siemens HB90554GB/01

Fan motor appears ok.
It’s smooth running and shows no faults.
Thanks for your reply.

[Martin]

Re: Siemens HB90554GB/01

The fan motor is the most likely culprit but it’s costly at almost £100. The selector switch that controls the fan could also be the reason it’s intermittent. That is far cheaper to replace. 😉

[ChrisR]

Re: Siemens HB90554GB/01

Thanks Martin.
I was thinking selector as the fan seems ok but as it’s very intermittent who knows.
I’ll see what customer wants to do.
Thanks again.
Chris.

[nomadPaul]

Re: Siemens HB90554GB/01

Just make sure they’re not selecting circo-therm grilling as on this setting, the grill element and fan alternate every few minutes.

[ChrisR]

Re: Siemens HB90554GB/01

Thanks for that.
I’ll double check but I’m sure it’s not that.

[Alanj]

Re: Siemens HB90554GB/01

Have you tested/tried 240v across fan connections to check fan?

[Author]

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