Bosch WTL6307GB/07 low heat problem

[Dave_talon]

I have a problem with my dryer. When used on low heat (which is the setting I use most of the time), the dryer only seems to heat up a tiny amount, run for what seems like hours and finishes with a rapidly flashing end light and a repeating sequence of 8 beeps.
So far I’ve:
cleaned filter and heat exchanger
cleaned the 3 moisture sensor pads
checked overheat stat – shows continuity
checked heater thermistor – read around 18K at room temp, reducing when heated
checked front thermistor – read around 10K at room temp, reducing when heated
Checked heater element resistance – one shows 30 ohms, the other 92 ohms

I presume I’m missing something here.
Can anyone help me out?

Thanks in advance,
Dave

[Author]

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