Recent content by Jethro 78

Thanks for you help jj4091. I am leaning towards a PCB fault myself. There has been documented failures of the relays on these PCBs... I read in a Miele repair manual (for an older model) that both PCB relays must close to send power to the elements. Perhaps only one relay is closing?

I must apologize that I am not the best electrician...but it seems to me that the two elements are parallel? and therefore should be getting 120V?

10v between small and large element conact 1v between small element and 3rd contact 16v between large element and 3rd contact

20210127_202306 by Jethro 78 posted 27 Jan 2021 at 8:24 PM

Dryer is protected with rcd. When element is disconnected: Contact on pcb for large element is 136v to earth Contact on pcb for small element is 2v to earth 3 rd contact is 3v to eath

Miele t150c pcb

The rear NTC was 150 k Ohms at 20C and went down to 9 k ohms at approximately 85C. It's interesting that the F2 error appears once but will then be removed after I enter the service mode.

I checked the rear NTC signal up to the power board. It responds as it should with temperature and is in line with the Miele specs. Does the "30 min hot air" program bypass the NTC signal?

Miele tumble dryer 3,5 years old no longer gets warm. Also does not warm on the "warm air program". Intermittent F2 error, but this disappears and the signal from the rear NTC is good. I have done the whole round of checks, both NTCs, both heating elements, thermostat switch. Power relays...