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Climate control fault


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Hi

I have recently purchaced a 1998 2.5

The climate has the following problems.

The aircon does not blow very cold, not actually a big problem in the UK at the moment but it would be good if it worked, I assume it just needs a re-gas.

The main issue is that the temperature control is a bit mad.

It only blows hot air if the control os set to 'Hi'

If I press 'auto' I get full fan, aircon compressor kicks in and regardless of the ambient temp. it still tries to chill the air.

I was hopeing it would be something simple like the cabin temp. sensor and not the controller, anyone got any ideas?

Thanks

Mal

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Mal,

Perhaps this information will be of some help.

From the Owner's Manual:

"Temperature setting - If the display "LO" or "HI" appears, the system is operating at maximum cooling or heating power."

And:

"Compressor for air-conditioning system - Whenever outside temperatures exceed 37F / 3C, the air-conditioning compressor is always switched on in automatic operation. The compressor can be sitched off to save fuel, but control comfort is then limited.

- Press button (Snow Flake symbol). The compresor is switched off, the symbol in the left-hand display goes out.

If the interior temperature is too high, switch the compressor back on, or press "auto"-button.

To dry incoming air in damp weather, do not switch off the air-onditioning compressor. This prevents misting of windows."

If you don't have an Owner's Manual, I would recommend getting one - there are many potential "gotchas" you can avoid by reading up on the car's systems. If you can't find a reasonabily priced Owner's Manual, you can download an MY03 (the earliest found) from RennTech.

Bill

Edited by whall
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Hi Bill

Thanks for the reply

The main problem i have is that whatever temperature I set the A.C. to it always blows cold air, the only time i can get it to blow hot is to set it to Hi.

Regards

Mal

Mal,

Perhaps this information will be of some help.

From the Owner's Manual:

"Temperature setting - If the display "LO" or "HI" appears, the system is operating at maximum cooling or heating power."

And:

"Compressor for air-conditioning system - Whenever outside temperatures exceed 37F / 3C, the air-conditioning compressor is always switched on in automatic operation. The compressor can be sitched off to save fuel, but control comfort is then limited.

- Press button (Snow Flake symbol). The compresor is switched off, the symbol in the left-hand display goes out.

If the interior temperature is too high, switch the compressor back on, or press "auto"-button.

To dry incoming air in damp weather, do not switch off the air-onditioning compressor. This prevents misting of windows."

If you don't have an Owner's Manual, I would recommend getting one - there are many potential "gotchas" you can avoid by reading up on the car's systems. If you can't find a reasonabily priced Owner's Manual, you can download an MY03 (the earliest found) from RennTech.

Bill

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  • 2 years later...

I have the same cabin temp control issue ... did you ever solve this?

I have been living with this for a couple of years ... basically, have to operate heat and AC in manual mode, since it only blows full hot when on High and otherwise no heat. It's like the cabin temp sensor does not work. I had one independent mechanic tell me they ocassionally have to oull the controller out and send it out for recalibrating. Anyone have any experience with this?

2001 Boxster S ... I'm the original owner and only driver. I did have one mouse nest in the front trunk, so it is possible some wire was nibbled. (The door speakers are also out. )

Any tips on how to debug much appreciated. I don't want to spend $500 to have the controller recalibrated only to find out that is not the problem.

Thanks.

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