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Old 10-12-2020   #1
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Van Heater Blower/Air-Con Not Working

Hello All, common question, apologies... I have the van version, first symptom, only blower working on 4, that has failed now too. I removed and cleaned the motor and jumped battery tested and worked fine. Removed resistor and tested, faulty. Father had a spare resistor from a Corsa which multimeter tested looks ok (i assume its the aircon version and looks the same as the removed one). There was no signs of melted wires anywhere. I have connected the Corsa resistor and the motor and turned the matrix controls and nothing. Tested the wires and appears to be no power. There is power coming to the control panel (it lights up) but I know there are the equivalent 5 prong connector on the back for the motor.

Is there a relay for the heater control power in the loop with the 5pin connector coming in the back (checked fuses ok) or is it something else?

There is NO info on the Relay numbers in the engine bay

I assume the next step would be to test if power is coming in the back of the control power (looks a big job tho because of the heater control cables)

TIA
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Old 10-12-2020   #2
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Re: Van Heater Blower/Air-Con Not Working

Footnote: I bought a OEDB plug and left it permanently installed, I see it is on the same fuse circuit as the AirCon Control, could this have done something? Fault happened after I installed the module.

Noticed no fuse installed in F08 (air con compressor) in engine bay...
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Last edited by Mr Brown 2021; 10-12-2020 at 14:54.
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Old 10-12-2020   #3
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Re: Van Heater Blower/Air-Con Not Working

Hi

For general heater info.. I would look in a much busier section..

https://www.fiatforum.com/grande-punto-guides/


I suspect the illumination is on lighting circuit.. not reliant on Heater power

https://www.fiatforum.com/grande-punto/314051-heater-faq.html

Charlie
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Last edited by varesecrazy; 10-12-2020 at 20:22.
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Old 09-02-2021   #4
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Re: Van Heater Blower/Air-Con Not Working

Still not fixed this after servicing the blower motor, new resistor, tested all fuses so thinking it is the blower controls themselves... What will break in the dial to cause the malfunction? TIA
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Old 09-02-2021   #5
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Quote Originally Posted by Mr Brown 2021 View Post
Still not fixed this after servicing the blower motor, new resistor, tested all fuses so thinking it is the blower controls themselves... What will break in the dial to cause the malfunction? TIA
Have you checked the power to the fan motor..
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Old 09-02-2021   #6
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Quote Originally Posted by Mr Brown 2021 View Post
Still not fixed this after servicing the blower motor, new resistor, tested all fuses so thinking it is the blower controls themselves... What will break in the dial to cause the malfunction? TIA
Have you checked the power to the fan motor..?
No crusty connections robbing power..??
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Old 09-02-2021   #7
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Re: Van Heater Blower/Air-Con Not Working

no power to the motor, so I suspect the dials. I need to remove the controls but it is one of those jobs! I would remove and check power going in the rear of controls.
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Old 09-02-2021   #8
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Quote Originally Posted by Mr Brown 2021 View Post
no power to the motor, so I suspect the dials. I need to remove the controls but it is one of those jobs! I would remove and check power going in the rear of controls.
No power at the resistor plug?

That is a common heat effected site ..

A visit to a vauxhall dealers parts desk can remedy that
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Old 10-02-2021   #9
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Re: Van Heater Blower/Air-Con Not Working

all the wires at the resistor end are clean, not melted, not power going to the resistor end.
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