nissan x trail blower stuck on full

s_b

think of it another way
current is running through what was a switch because the switch is now not working
i assume because it melted
now go back to the original findings you found in america because they obviously have some baring on your truck
me?
as i agreed,it could catch fire
needs sorting soonest

lee678

ali-t wrote: »

Well Lee,

he is actually a she

and I meant it is on all the time when the engine is on, not 24/7.

sorry love....

Tucker

It is quite probably the resisters on the blower that have failed. The same thing happened on my Citroen and the official Citroen repair was a new resistor pack, which was about £100 plus fitting.

I doubt the switch has melted. Blower on full is usually resistor failure. The resistors slow the fan down.

I found an instruction web page for my car which explained how to replace them. It cost about £10 in total. This was the one for my car:

http://www.johnandchris.screaming.net/berlingo_blower/berlingo_blower.htm

There's no danger of fire in my opinion, it's more annoying. Mine went while I was on Holiday in Scotland, so I unplugged the feed to the fan as a temp solution.

Removing the fuse might not be wise as the fuse for mine also controlled other things that needed to be working.

Tucker

Try this as a starting point:

http://www.ebay.co.uk/itm/NISSAN-X-TRAIL-HEATER-FAN-CONTROL-RESISTOR-REPAIR-/330684581767?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item4cfe564787#ht_720wt_936

It looks to be a repair service....

There's a phone number. Give them a call and they should be able to tell you how to remove it for posting.

s_b

Tucker wrote: »

It is quite probably the resisters on the blower that have failed. The same thing happened on my Citroen and the official Citroen repair was a new resistor pack, which was about £100 plus fitting.

I doubt the switch has melted. Blower on full is usually resistor failure. The resistors slow the fan down.

I found an instruction web page for my car which explained how to replace them. It cost about £10 in total. This was the one for my car:

http://www.johnandchris.screaming.net/berlingo_blower/berlingo_blower.htm

There's no danger of fire in my opinion, it's more annoying. Mine went while I was on Holiday in Scotland, so I unplugged the feed to the fan as a temp solution.

Removing the fuse might not be wise as the fuse for mine also controlled other things that needed to be working.

tucker this is what the op said

when I went into the car the blowers were on full and when I switched them off, they stayed on full.

so think about it logically
power is going to the fan and a return to stop the power whether a positive or a negative is going to the switch,the switch isnt working,why isnt it working? because its most probably melted thats why,remember also this vehicle seems to have climate control so everything is highly likely to be run from an ic and circuit board so its highly unlikely to be a simple resister breakdown
its a fire waiting to happen

Tucker

As long as the OP is talking about the blower being on full when the ignition is on, then it will be the resistors.

That's what happens when they fail. The blower goess at full speed all the time when the ignition is on. Turning the speed switch has no effect as the resistors are what slows the fan speed down.

I don't think the OP is saying the blower is running when the key is out of the ignition. If she is then I stand corrected, but that's not what I read it to mean.

Tucker

ali-t wrote: »

Well Lee, he is actually a she and I meant it is on all the time when the engine is on, not 24/7.

This is what the OP said... IT's runnig only when the engine is.

It's the resistors for me 99%.

vax2002

Tucker wrote: »

It is quite probably the resisters on the blower that have failed. The same thing happened on my Citroen and the official Citroen repair was a new resistor pack, which was about £100 plus fitting.

I doubt the switch has melted. Blower on full is usually resistor failure. The resistors slow the fan down.

I found an instruction web page for my car which explained how to replace them. It cost about £10 in total. This was the one for my car:

http://www.johnandchris.screaming.net/berlingo_blower/berlingo_blower.htm

There's no danger of fire in my opinion, it's more annoying. Mine went while I was on Holiday in Scotland, so I unplugged the feed to the fan as a temp solution.

Removing the fuse might not be wise as the fuse for mine also controlled other things that needed to be working.

The actual resistor in the resistor pack costs 27p from maplin of you have a soldering iron, the rest is just circuit board.

Tucker

Very true Vax, they cost very little, but most don't have the ability to change them and dealers just sell you a complete new part.

S B - I don;t know the exact workings of how the blower runs, but I know this. The power to it runs it a full pelt. The only thing that then adjusts it down from full pelt are the resisters which are controlled from the switch.

Even when the switch is turned to off, the blower fan is still running but very slowly. It never actually stops running. Everything to do with the speed of it is controlled by the resistors slowing it down.

Now someone who is very electronically minded will no doubt be able to give the exact science behind it all, but there's likely to be nothing wrong with the switch in this instance.

The fan is designed to cope with running at full speed. Most would never do that all the time, but it's no more risky than you turning your switch to full and driving around constantly like that.

Hopefully the OP will come back and tell us what's happened.

ali-t

vax2002 wrote: »

The actual resistor in the resistor pack costs 27p from maplin of you have a soldering iron, the rest is just circuit board.

:rotfl:Vax2002, your post cracked me up :rotfl: I can barely be trusted to iron a shirt never mind be let loose with a soldering iron near my car. 27p sounds good though