B4 heater fan only works on full speed - Page 2

stoop44rio · 22-03-11, 06:40 PM

if you google blower heater resistor or something similar, you will find a company that repair/replace with next day delivery iirc. early audis 80/a4 etc are about £13.

james brazier · 22-03-11, 07:42 PM

yeah £13.00 for a part costing a quid, hmmmm, the thermal fuse once you have taken the resistor pack out is pretty obvious as it sits on two pieces of wire below the resistor pack. Done mine on the cq and it works a treat, was a bit of a sod to solder but got there in the end.

pimpdriver · 22-03-11, 07:51 PM

That's business! I don't have time to be soldering.

Just bought one off wildoliver.

pimpdriver · 03-04-11, 04:20 PM

All fixed now. Took all of 4 minutes to swap over.

Many thanks Olly!

stoop44rio · 20-05-11, 05:37 PM

Quote:

and you can replace the replace the thermal fuse get one from maplins and solder it in make sure it goes the right way round maplins will match the old one up with a new one.

Just did this and sadly still only have heaters blowing on 4. Im sure I did solder it the right way. Can there be any other cause??

msh · 20-05-11, 09:56 PM

Did you checked continuity of that fuse after soldering?

Otherwise, if resistor pack itself is good and fuse is also good, there's switch and nothing else. But when switch fails, usually remains 3d and 4th speeds.

22-03-11, 07:51 PM	#13
pimpdriver Devon Pastie Muncher Classic Audi Club Member Join Date: Jul 2007 Location: Calne Wiltshire Posts: 7,530	That's business! I don't have time to be soldering. Just bought one off wildoliver. __________________ Winter tyres now! Driving the B2 80CL as a daily and LOVING it!!!!

03-04-11, 04:20 PM	#14
pimpdriver Devon Pastie Muncher Classic Audi Club Member Join Date: Jul 2007 Location: Calne Wiltshire Posts: 7,530	All fixed now. Took all of 4 minutes to swap over. Many thanks Olly! __________________ Winter tyres now! Driving the B2 80CL as a daily and LOVING it!!!!

22-03-11, 06:40 PM	#11
stoop44rio Grown up member Classic Audi Club Member Join Date: Aug 2008 Location: antrim, ireland Posts: 504	if you google blower heater resistor or something similar, you will find a company that repair/replace with next day delivery iirc. early audis 80/a4 etc are about £13.

22-03-11, 07:42 PM	#12
james brazier Grown up member Join Date: Dec 2010 Posts: 189	yeah £13.00 for a part costing a quid, hmmmm, the thermal fuse once you have taken the resistor pack out is pretty obvious as it sits on two pieces of wire below the resistor pack. Done mine on the cq and it works a treat, was a bit of a sod to solder but got there in the end.

20-05-11, 09:56 PM	#16
msh 4 ring whore! Join Date: Jun 2008 Location: Rucava, Latvija Posts: 3,816	Did you checked continuity of that fuse after soldering? Otherwise, if resistor pack itself is good and fuse is also good, there's switch and nothing else. But when switch fails, usually remains 3d and 4th speeds.