Heater control unit

[mb450]

Hi Folks,

Looking for some help with my heater control unit(s).

My first one burnt out - so I replaced it with a used - but in good nick one from a breakers.
I smelt burning on when I turned the fans on today and upon removing the dash top the second one has now suffered the same fate at the first.







With the dash off I tried jiggling the wires in the connector and I managed to get the heater fan to run again but within seconds the wire that coresponds to the burnt out part of the connector was too hot to touch.

Is this a symptom of someting else being wrong?
Partially seized fan or someting else?

Does anyone know if it's possible to get a replacement pair of connectors that I could then resolder in or is it more likely that this component is the one causing the grief:

:-(

Matt

[mb450]

I will try putting some power across the fan. Where is the fan located?

[mb450]

Thanks Andy, do you know what the blower is from if it does need to be replaced?

[mb450]

Hi Andy I think I'm being a bit thick - I've just had my head in the footwell and I can't see the blower at all - to be honest I'm not entirely sure when I'm looking for.

[mb450]

Ok found it! I've cut all the sealant off round the cover and I can see the blower if I lie in the footwell and prise the cover away. How is the blower attached - does the cover come off or is it just a flap?

How is the blower attached - I think it's knackered judging by the black marks (looks like something has burnt out in there)