heater blower not working

For all electrical questions; Alternators including fitment; Light connections/wiring; Instruments; Gauges; MFA; Heater blower (not coolant related) issues etc etc.
Forum rules
Hints, tips and guides for repair and modification - the FAQ section on the main website is worth checking first for information relating to common faults and technical help. Useful posts and guides will be added to the FAQ http://www.sciroccoregister.co.uk/scirocco-faq
User avatar
eefy
Posts: 999
Joined: Fri Apr 10, 2009 7:32 pm
fill in the right answer: 10
Location: Manchester

Re: heater blower not working

Post by eefy »

hmmm think i've got the same fault, blower motor working for a few mins that stopping, the heater matrix is fine as theres still heat coming out.

think i'll replace the same relay and see if it solves the problem :)


Image
marcus
Posts: 602
Joined: Fri May 15, 2009 11:22 am
fill in the right answer: 10
Location: London

Re: heater blower not working

Post by marcus »

I think it's worth checking the switch first - I've had an intermittent blower fault for some time (position 3 didn't work at all and 2 would sometimes cut out) and found that the switch wasn't connecting reliably, pushing on the switch results in the blower working again (until you release the pressure that is).

Might be worth removing to check the connections and giving it a squirt of WD40 or similar - none of the switches on my old Land Rover worked when I got it but WD40 and operating the switches a few times fixed them.


1985 GTL 1.8

Member number 928 (wish I had one)
Nate
Posts: 4045
Joined: Thu Apr 02, 2009 10:37 pm
fill in the right answer: 10
Location: Cirencester / Swindon

Re: heater blower not working

Post by Nate »

Nooooooooo! Wd40 is evil! Use proper contact cleaner, and proper penetrating oil, not one spray that tries to do everything

edit: I don't mean fill your switch with penetrating oil by the way


Image

Check out my photostream on Flickr
'69 bay, '79 bay, '74 bug, '78 GLS, '91 GT2, '10 SAAB 9-3
marcus
Posts: 602
Joined: Fri May 15, 2009 11:22 am
fill in the right answer: 10
Location: London

Re: heater blower not working

Post by marcus »

Ok ok, replace WD40 with [insert your favourite contact cleaner/penetrating oil - delete as appropriate - here]...


1985 GTL 1.8

Member number 928 (wish I had one)
User avatar
eefy
Posts: 999
Joined: Fri Apr 10, 2009 7:32 pm
fill in the right answer: 10
Location: Manchester

Re: heater blower not working

Post by eefy »

i'll gove it a go when i strip out the centre console to fit some gauges :) thanks for he help :)


Image
User avatar
Reverend Frog
Posts: 497
Joined: Wed Apr 01, 2009 12:57 pm
fill in the right answer: 15
Location: Belfast

Re: heater blower not working

Post by Reverend Frog »

Any joy Eefy?

I've got the same issue


Previously owned:
Image
1988 1.6 GT
1989 1.8 GT
1982 1.6 GTI
1993 Corrado VR6
ianaudia4
Posts: 3800
Joined: Wed Apr 01, 2009 4:35 pm
fill in the right answer: 15
Location: Central London and Essex

Re: heater blower not working

Post by ianaudia4 »

Effy had a dodgy switch, I sent him my spare and it solved the problem.


1984 MK2 Havanna brown Storm
1989 MK2 Alpine white Scala injection
2006 Audi A4 3.0TDI quattro (the beast)
User avatar
Reverend Frog
Posts: 497
Joined: Wed Apr 01, 2009 12:57 pm
fill in the right answer: 15
Location: Belfast

Re: heater blower not working

Post by Reverend Frog »

Ian - you're a one man solution factory!

cheers for the heads-up - I've ordered one. hopefully not too difficult to fit


Previously owned:
Image
1988 1.6 GT
1989 1.8 GT
1982 1.6 GTI
1993 Corrado VR6
ianaudia4
Posts: 3800
Joined: Wed Apr 01, 2009 4:35 pm
fill in the right answer: 15
Location: Central London and Essex

Re: heater blower not working

Post by ianaudia4 »

Very easy to fit Rick, a couple of small screw drivers and 5 minutes of your time.


1984 MK2 Havanna brown Storm
1989 MK2 Alpine white Scala injection
2006 Audi A4 3.0TDI quattro (the beast)
User avatar
Reverend Frog
Posts: 497
Joined: Wed Apr 01, 2009 12:57 pm
fill in the right answer: 15
Location: Belfast

Re: heater blower not working

Post by Reverend Frog »

think i might have cracked my heater blower problem (sorry for thread hijack)

took the scuttle panel off today and poked at the wiring on the side of the fan unit. the blower instantly started up.

i tried again, just poking the brown wire. that worked too. then I blew the fuse!

so bad earth (my car is bloody full of them!) haven't worked out how to fix this yet - but i'll report back when I can


Previously owned:
Image
1988 1.6 GT
1989 1.8 GT
1982 1.6 GTI
1993 Corrado VR6
ianaudia4
Posts: 3800
Joined: Wed Apr 01, 2009 4:35 pm
fill in the right answer: 15
Location: Central London and Essex

Re: heater blower not working

Post by ianaudia4 »

Shame you are where you are mate as like I said I would have loved to have helped you with all the little niggles.
Try cleaning up all the earths and re-attach securely, changing any that are past their 'best before date'!


1984 MK2 Havanna brown Storm
1989 MK2 Alpine white Scala injection
2006 Audi A4 3.0TDI quattro (the beast)
User avatar
Reverend Frog
Posts: 497
Joined: Wed Apr 01, 2009 12:57 pm
fill in the right answer: 15
Location: Belfast

Re: heater blower not working

Post by Reverend Frog »

ianaudia4 wrote:Shame you are where you are mate as like I said I would have loved to have helped you with all the little niggles.
Try cleaning up all the earths and re-attach securely, changing any that are past their 'best before date'!
well at least i found the solution!

wee project for tomorrow - getting through them one at a time


Previously owned:
Image
1988 1.6 GT
1989 1.8 GT
1982 1.6 GTI
1993 Corrado VR6
ianaudia4
Posts: 3800
Joined: Wed Apr 01, 2009 4:35 pm
fill in the right answer: 15
Location: Central London and Essex

Re: heater blower not working

Post by ianaudia4 »

Reverend Frog wrote:
ianaudia4 wrote:Shame you are where you are mate as like I said I would have loved to have helped you with all the little niggles.
Try cleaning up all the earths and re-attach securely, changing any that are past their 'best before date'!
well at least i found the solution!

wee project for tomorrow - getting through them one at a time
That's the way mate, a systematic approach. Get down the pound shop and buy some little wire brushes.


1984 MK2 Havanna brown Storm
1989 MK2 Alpine white Scala injection
2006 Audi A4 3.0TDI quattro (the beast)
User avatar
Reverend Frog
Posts: 497
Joined: Wed Apr 01, 2009 12:57 pm
fill in the right answer: 15
Location: Belfast

Re: heater blower not working

Post by Reverend Frog »

had another look at this today

although if i twiddle the wiring it makes the fan come on, it still cuts out eventually.

And today when I was peering into it, it started smoking slightly!

so does this imply that it's overheating and cutting out as a safety measure?


Previously owned:
Image
1988 1.6 GT
1989 1.8 GT
1982 1.6 GTI
1993 Corrado VR6
Post Reply