Cab heater only blowing cold air

[roadtripper]

I wonder if false readings of position are actually the root cause of a lot of these issues?

 

[roadtripper]

Hey folks, with horrible irony my 6.1 Caravelle has just started making some odd valve/servo chattering noises behind the dash (factory warranty ends this month) and I was wondering if this sounded familiar to anyone who's had this issue, pics on this thread:

https://www.t6forum.com/threads/t6-1-heater-blowing-hot-air-only.33728/page-4#post-660593

 

[weety]

Weety this is very interesting.
You have gone to a lot of effort hopefully this will help a lot of people out as have had quite a few people having problems going past the stop point.
Nice one
Tony P

Two weeks on, and the repair is still working, fingers and toes crossed. Personally, I wouldn't trust this delicate type of repair to a garage, best doing this thing yourself and take your time.

 

[weety]

I wonder if false readings of position are actually the root cause of a lot of these issues?

I reckon so, the motor I opened up was packed full of grease, I reckon when the motors get hot, the grease melts and smears over the potentiometer giving false readings.

 

[weety]

Hey folks, with horrible irony my 6.1 Caravelle has just started making some odd valve/servo chattering noises behind the dash (factory warranty ends this month) and I was wondering if this sounded familiar to anyone who's had this issue, pics on this thread:

https://www.t6forum.com/threads/t6-1-heater-blowing-hot-air-only.33728/page-4#post-660593

Get yourself a decent borescope from amazon and use it to investigate before approaching a garage.

 

[roadtripper]

I have one, pictures (and video) are on the thread as I said?

Coincidentally it's already booked in for end of warranty service on Thursday, hence why I'm interested if anyone's issue started in the same way or this could be something else.