heater

[bigben]

i just brought a 95 mu but the heater fan doesnt work.i have checked the fuses & they are all fine

[turnturn]

There is a resistor pack that controls your fan speeds. It is possible that this is faulty.
Here is a link to a previous post on this subject viewtopic.php?f=24&t=332
I replaced mine. Got a new one from the local Isuzu dealer. It needed a bit of a tickle up to fit and a bit of thought regarding wiring but it went in and still goes.

[bigben]

cheers for that m8. will go hav a look & get a new 1 & try that. if it works it works. if not then i have a spare.

[bigben]

turns out its not the resistor pack. i have no power at the main fuse & no power getting to the switch.

[geeves]

check your battery voltage with the engine running. It will be 14.5 or 12 or less
hopefully option A. If its B then a new alternator and charge relay will fix

[bigben]

battery running 14.5v.

[geeves]

this should be controlled by a relay. In the frontera its labled f4. Hope its better marked in the mu

[bigben]

i have tried swapping round the relays & it doesnt make any difference. still no power

[dasnoboarder]

I think the charge relay is different. In my MU, the blue charge relay wasn't swappable with the other black relays.

Had the alternator fail, and had to replace charge relay as well.

Andy

[bigben]

hey andy. do you think that if i replace the blue charge relay ikt mite solve the problem?
i managed to jimmy up power to the heater fuse in main box under the bonnet the other day but still had no power getting to the switch

[geeves]

If you got 14.5 the charge relay is ok

[dasnoboarder]

I'd trust the Geeves - he's the Guru

[turnturn]

I'd agree with Geeves. If you have around 14 volts then your charge relay should be fine.
Do not swap your charge relay with other relays in the quest to find the problem, they work differently.
You say "i have no power at the main fuse & no power getting to the switch". Do you mean the larger MAIN fuse or are you just saying that there is no power to the fuse that should control the heater fan switch?
Is there anything else that doesn't go?

[bigben]

no its just the heater fan that doesnt work. there is power to the larger main fuse just not to the small heater fuse.

[bigben]

got the problem sorted. took it to an auto electrician yesterday. was a dead wire & buggered resistor.

[stardog]

Check this out http://forum.australia4wd.com/index.php ... wer-motor/ might help some people out