heater switch

[jockfife]

hi guys i have a mk5 transit long wheel high top on a v plate can anybody tell me why the heater switch only works on the 3rd speed is it the switch or is there a resistor coz i cant find 1 any where

[trevor3839]

Had this on my MK5 & it's a common problem. If you take the switch out you may well find the terminals burnt out on speeds 1 & 2. I bought a new switch for about £5 of ebay and fitted it. It's a bit fiddly getting in there but can be done without stripping too much of the dash. You may need to crimp new spades on the 2 terminals that are burnt out.

[MinorMatt]

more likely to be the heater resistor, I cant remember where it is on he later mk5s though

[trevor3839]

Pretty easy to pop the switch out & check the terminals.If that's not the problem then as minormatt says go looking for the resistor. Good luck.

[jockfife]

cheers will try that theres a few in breakers yard

[GBBiker]

You will find the reststor up under the dash fitted on the side of the matrix housing or thereabouts.

I doubt it will be the switch though...

[V184]

you can buy a wiring sub loom for the heater switch the recirculating ones different & harder to fit

[barabas]

As Matt says, it's most likely the resistor, only blowing on 3 is such a common indicator of a knackered resistor. If you do a search you will find a load of info on it

[tranny mhan]

cheers will try that theres a few in breakers yard

The resistor is located just behind the O/S headlamp on the mk5 transit.


TM

[MrMPuk]

cheers will try that theres a few in breakers yard

The resistor is located just behind the O/S headlamp on the mk5 transit.


TM

On the early ones yes, on the later ones it's as stated above.

[jockfife]

this donkey is in the lazy starting club lol old van would start in any weather so mite swap engine but the doner donkey has been lying for 5 yrs under cover do yous think with a bit of tlc it will go straight in it came out a g reg short wheel going in the mk5 lwb as mk5 past mot no probs also old donkey has 65ooo on clock the 1 in van just now has 180000 on clock

[jockfife]

hi update on switch. changed switch did nuthing had to order resistor from ford which was under dash it was all rusted b here on monday so will let yous no how it goes also added new throttle cable van goin good again lol cheers for all the posts helped alot

[jockfife]

update on resistor put new 1 on perfect works on all speeds the photos in the forum was a big help cheers

[GBBiker]

changed switch

Without wishing to sound bitchy.....


Why?

Look at the responses to your original post. How many people told you to change the resistor? How many of us also told you that it wouldn't be the switch at fault?

[johnsgotwood]

Mine does the same as everyone else's. I know its gonna be the resistor which is a pig to get at so I'm in no hurry to do it. I can't make up my mind whether its worth it, afterall it probably won't last very long anyway. Considering the vans only 11 years old I think its crap that this component should be so unreliable.