Heating/fan problem

[Smartjames]

So I was on way home today window started to steam/fog up so I put the heating on after few mins still fogging up so turnt the music down and turnt it on to 4 (max) and nothing it wasn't working just stopped working ?!

Anyone know what's going on with it and is it a easy fix ??

Cheers guys


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[mac999]

Re: Heating/fan problem

what model year etc do you have?

[Smartjames]

Re: Heating/fan problem

It's a 2009 CDI 451


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[Evilution]

Re: Heating/fan problem

The fact it doesn't work on any position means it's not a fault with the resistor pack.
Firstly, check fuse number 4 (25 amp). If that's OK, then this:

http://www.evilution.co.uk/945

[Smartjames]

Re: Heating/fan problem

Thanks evolution


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[tolsen]

Re: Heating/fan problem

High humidity can cause over filming and high resistance between brush and commutator.

"Film" is a microscopic layer of copper carbon composite that is formed when electric current is passed between the carbon brush and copper commutator in the presence of water vapour. Good film is chocolate brown or burnished bronze to dark brown or black and uniform in colour.

[tolsen]

Re: Heating/fan problem

Fixes for over filming issues are:
1) Identify and cure any water leak entry points into heater unit. Could be rain water entering from outside or coolant leak. Make sure drain in air inlet duct, if there is one, is not blocked with leaves and dirt etc.
2) Run fan on higher speeds.

[Smartjames]

Re: Heating/fan problem

well this is as far as I have got in taking it apart and can take it apart no more the round dials seem like there holding it on but there's no more screws to take out anyone done this ? As I don't want to snap the plastic !


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[pas55]

Re: Heating/fan problem

Funny my 2009 Smart heater would not work last night hit a pothole and bingo it came back on

[tolsen]

Re: Heating/fan problem

What makes you conclude the controller is faulty? Did you not state fan never runs on any speed? How is the fuse?

[Smartjames]

Re: Heating/fan problem

Funny my 2009 Smart heater would not work last night hit a pothole and bingo it came back on

Wish it was a simple pot hole hit and back on it came ;-)

What makes you conclude the controller is faulty? Did you not state fan never runs on any speed? How is the fuse?

Well I now know it's not the controls as iv taken them apart and there different to the one in evolutions diagrams !

So I don't know what to check next then ?! As it's all behind the dash isn't it ?!


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[Smartjames]

Re: Heating/fan problem

Oh and the fuse is fine :-/


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[tolsen]

Re: Heating/fan problem

...Well I now know it's not the controls as iv taken them apart and there different to the one in evolutions diagrams ! ...

Looks exactly the same to me. Same part number too.

Why not do some fault finding before taking things apart? Check if there is an power being fed to fan motor etc etc. A simple test lamp is all you need.

[J500ANT]

Re: Heating/fan problem

The fans are a bit iffy on earlier 451's - there was a modified unit to sort.

[Smartjames]

Re: Heating/fan problem

Well I will have a look at it properly after work on Sunday do some testing that I can. But it won't hurt or do damage to anything while it isn't working will it ?


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