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Old 20-02-2017   #1
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Only blowing warm/hot air

Hi,

Just wondering if anyone has got any ideas what could be the problem.

My 500 has climate control, however when I turn it down to 16 degrees the temperature doesn't change.

I had a new condenser, pressure switch and compressor fitted about 6 months ago and all was great! I can hear the relay click and the what I assume are the flaps inside the dash move when I press the air con button but still blows warm/hot air.

Any guidance is much appreciated, I have searched the forum and googled the problem but it only comes up with cold air problems.

Thank you
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Old 20-02-2017   #2
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Re: Only blowing warm/hot air

By relay click do you mean the "loud" click under the bonnet? If yes that's the compressor coming on-which is good, hold the ac pipes going through the bulkhead or near to check they are cold(or at least one of them)
I would suspect a "flap" actuator under the dash, stuck/broken/out of sync, if you can with a bright torch and a helper, find and watch the various actuators, try from min to max temp and direction control see what happens?
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Old 20-02-2017   #3
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Re: Only blowing warm/hot air

Quote Originally Posted by John202020 View Post
By relay click do you mean the "loud" click under the bonnet? If yes that's the compressor coming on-which is good, hold the ac pipes going through the bulkhead or near to check they are cold(or at least one of them)

I would suspect a "flap" actuator under the dash, stuck/broken/out of sync, if you can with a bright torch and a helper, find and watch the various actuators, try from min to max temp and direction control see what happens?


Hi,

Yes, the loud click is from under the bonnet.

I will try and check the actuator as suggested, but really hope it's not that as I understand it requires the dash to be removed.

Thanks for the advice.
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Old 20-02-2017   #4
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Re: Only blowing warm/hot air

Quote Originally Posted by Happybubbas View Post
Hi,

Yes, the loud click is from under the bonnet.

I will try and check the actuator as suggested, but really hope it's not that as I understand it requires the dash to be removed.

Thanks for the advice.
You're talking about the blend door pin broken issue, it maybe fine, and its the control of the actuator(electric) that's at fault, which could be a climate control ecu problem, there's all sorts it could be just try to rule the simple thing out first.
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Old 20-02-2017   #5
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Re: Only blowing warm/hot air

Quote Originally Posted by John202020 View Post
You're talking about the blend door pin broken issue, it maybe fine, and its the control of the actuator(electric) that's at fault, which could be a climate control ecu problem, there's all sorts it could be just try to rule the simple thing out first.


Thanks John.

Do think it's worth checking the fuses?
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Old 20-02-2017   #6
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Re: Only blowing warm/hot air

I would see if the actuators works first
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Old 20-02-2017   #7
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Re: Only blowing warm/hot air

Quote Originally Posted by Happybubbas View Post
Hi,

Yes, the loud click is from under the bonnet.

I will try and check the actuator as suggested, but really hope it's not that as I understand it requires the dash to be removed.

Thanks for the advice.



A small bet its the blend door. I just did mine. It was a bugger but is can be done. The car was off the road for 3 months, but we only actually did about 16 hours of work on it.


Don't lose heart - I was lucky to have a mechanic prospective son-in-law and his mate, its a daunting task.


Doors off, air con discharge, water drained, steering column undone, steering wheel removed, all the airbags, gearbox linkage undone, all plastic trim forward of the front seats inc entire dash. We also took the front seats out so we had room.


The repair cost nothing in the end. I split the heater open took the broken door out and fixed it with a bolt and some super glue.


Some of the guys on this forum were super helpful with advice. Hope it turn out to be something else - but I suspect not.
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Old 20-02-2017   #8
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Re: Only blowing warm/hot air

Quote Originally Posted by robinm2000 View Post
A small bet its the blend door. I just did mine. It was a bugger but is can be done. The car was off the road for 3 months, but we only actually did about 16 hours of work on it.


Don't lose heart - I was lucky to have a mechanic prospective son-in-law and his mate, its a daunting task.


Doors off, air con discharge, water drained, steering column undone, steering wheel removed, all the airbags, gearbox linkage undone, all plastic trim forward of the front seats inc entire dash. We also took the front seats out so we had room.


The repair cost nothing in the end. I split the heater open took the broken door out and fixed it with a bolt and some super glue.


Some of the guys on this forum were super helpful with advice. Hope it turn out to be something else - but I suspect not.


I really hope it's not that, if it is it will be bye bye to the car!

I'd have to pay to have it done and it would probably be uneconomic to do it.
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Old 20-02-2017   #9
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Re: Only blowing warm/hot air

Quote Originally Posted by Happybubbas View Post
I really hope it's not that, if it is it will be bye bye to the car!

I'd have to pay to have it done and it would probably be uneconomic to do it.


don't give up on the little man! It can be done -
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Old 02-03-2017   #10
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Re: Only blowing warm/hot air

I'll update on this once I've had it looked at, so should know what the exact problem is within the next few weeks. Hopefully it will give a guide to people who have the same problem but are unable to fix it themselves and need the experts to do it.

The only good thing is that it's blowing warm/hot air and not cold!
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Old 29-12-2017   #11
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Re: Only blowing warm/hot air

Quote Originally Posted by Happybubbas View Post
I'll update on this once I've had it looked at, so should know what the exact problem is within the next few weeks. Hopefully it will give a guide to people who have the same problem but are unable to fix it themselves and need the experts to do it.

The only good thing is that it's blowing warm/hot air and not cold!
any news..??
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Old 29-12-2017   #12
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Re: Only blowing warm/hot air

Quote Originally Posted by varesecrazy View Post
any news..??


Yes, got it sorted.

Prepared myself for the worse case scenario that it would be the blend door that needed fixing. Was going to get it looked at in July but then I had to get a fuel leak fixed that was in the fuel line. So I put it off.

Luckily burrowsdeano posted a thread that he had a fix for it, would only take at the most 3 hours and as it would be the first car he’d try it on would only charge £150 and no charge if he couldn’t fix it.

Took the car down to him In Southampton a couple of weeks ago, he fixed it but it wasn’t the blend door, but the temperature control flap, so he fitted another one, checked all the other parts and it all works!

I now know that he has tested his fix on a fiat 500 and it has been successful, I would anyone with that problem to pay him a visit.

Happy new year!
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Old 29-12-2017   #13
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Re: Only blowing warm/hot air

I knew he'd had recent success .. but wasn't aware of the details.

thanks for the clarification,

and a Happy New Year to you also
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Old 24-05-2019   #14
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Re: Only blowing warm/hot air

Has anything changed with how to deal with this issue? I think it is happening/has happened to my 2012 500. It was stuck on blowing hot air no matter what I did with the controls (AC, or turn to lowest T setting). It just blows hot! I can open windows and roof it if isn't raining, but I need AC sometimes...
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Old 25-05-2019   #15
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Re: Only blowing warm/hot air

dont know how is on fiat 500 but on my ford mondeo mk3 ,was the same problem, wherever i move the buton ,only hot air come.

The problem was on the flaps what change coold and hot air,was a mecanic problem.
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