GTA Heater Fan

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GTA Heater Fan

Postby paulrob100 » Mon Aug 08, 2016 9:12 pm

Just noticed today. When the heater fan switch is `off` the fan runs at low speed. Turn the switch one click & the fan speeds up as you would expect. Now, turn it to what should be the fastest setting, & it slows down to `low`.

Scratching my head ! :thinking. Any ideas ?
La Plastique Fantastique :GTA
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Re: GTA Heater Fan

Postby jon_viola » Mon Aug 08, 2016 9:20 pm

The fan at the centre vents is permanently on for fuel vapour reasons as I remember....
1989 GTA Turbo
2003 Mercedes E320 CDI Estate- A.K.A Badke Bus

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Re: GTA Heater Fan

Postby Miles » Tue Aug 09, 2016 5:45 am

Clean connectors on springy looking resistor thing near battery.
For high speed though, on turbo model, there is a relay located high up above fuse panel, almost behind speedo. You don't need to remove instrument panel to get to it though. Operate switch and you should hear it click. Look up above pedals.
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Re: GTA Heater Fan

Postby jon_viola » Tue Aug 09, 2016 8:28 am

You learn something new every day.
1989 GTA Turbo
2003 Mercedes E320 CDI Estate- A.K.A Badke Bus

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Re: GTA Heater Fan

Postby mettersl » Tue Aug 09, 2016 2:50 pm

What only turbo?
I thought the core wiring was shared?
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Re: GTA Heater Fan

Postby paulrob100 » Tue Aug 09, 2016 3:30 pm

Miles wrote:Clean connectors on springy looking resistor thing near battery.
For high speed though, on turbo model, there is a relay located high up above fuse panel, almost behind speedo. You don't need to remove instrument panel to get to it though. Operate switch and you should hear it click. Look up above pedals.

Thanks Miles

Took the relay out, cleaned the connectors & sprayed with electrical contact cleaner :) Now working !
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Re: GTA Heater Fan

Postby JohnC » Tue Aug 09, 2016 8:40 pm

mettersl wrote:What only turbo?
I thought the core wiring was shared?

Lee ....... the non air conditioned Atmo and Turbo Alps do, as you say, share the same circuitry, but there are differences when it comes to the Atmo and Turbo versions.with air con.
However all versions have the Fan Motor third speed Relay No. 337. See pic below for position of Relay 337 for Non Air Con Alps ..... although the pic is for the Turbo, the relay position is the same as the Atmo.
Remember, of course, that the manual shows only LHD versions, so it is possible that relay 337 is at the other end of the relay rail nearest the steering wheel on RHD Alps. ;)

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1990 GTA Atmo, 2003 Jaguar X type 2.5SE Auto, 2018 Kia Picanto GT-Line-S 1.25
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Re: GTA Heater Fan

Postby mettersl » Fri Aug 12, 2016 12:06 pm

Thanks John, it sounds like I have just found a new thing to worry about when retrofitting ac to my Atmo...if it ever gets that far. I'll have to get the bits out and find out if my AC set up is Turbo or Atmo.

Lee


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