WH/VT Climate Control

[mattman]

Ok - with the abscence of the aircon forum i'll post this here Kinda both anyway.

I have issues with my climate control relating to speeds 1-3 dropping out on a regular basis and working only on full bore which bypasses the cc control module.

Now... I understand with the non-cc resistor style setups for the dropout to be intermittent, but with the climate control it's usually a transistor failure, but is it even possible for this to be intermittent? I would have thought it would be an all-or-nothing thing in this case. If it's not possible, I guess it's more of a wiring issue to be investigated (wouldn't be the first time I've found something falling apart that the last owner bound in electrical tape).

Sooo.. electrical nuts, can a transistor have an intermittent issue? Or is it simply alive or dead (and my problem is something else).

If the controller were cheaper (its $110) i'd just replace it and see what happens, but it's a bit costly to throw more than a greenie at it when it may not be the issue at all.

TIA,
Matt

(hope you can understand my rambling)

 

[mattman]

Anybody?

I guess the quick question is - can a transistor have an intermittent issue? Or is it just a case of when it dies, it's dead (meaning my problem is something else).

 

[tourettes]

vt climate control

hi my brother crashed my vt calais recently and it was totaled so im striping it for what i can and i was wondering if i could change the heater control thing with 3 knobs to the climate control out of my calais? thanks

 

[scozz76]

I would say that an intermittent fault like that would be bad soldering. I've never had a look at these modules but if you can get it apart, go over the circuit board and repair any soldering that looks bad.