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Old 10-06-2017   #16
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Re: Aircon not working

Quote Originally Posted by UFI View Post
Has little to do with temp settings. The flap in question will already be at full extension well before max or min temps. In fact, having it in the middle could be the worst as it may be cycling open and closed constantly.
All I know about this issue, is what was discussed earlier this year on here.
It's there on the first page.
https://www.fiatforum.com/500/448013-heater-flap.html

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Mick.
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Old 11-06-2017   #17
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Re: Aircon not working

Quote Originally Posted by UFI View Post
Has little to do with temp settings. The flap in question will already be at full extension well before max or min temps.
Indeed. Therefore avoiding min and max temperature settings won't help much to keep the climate control system healthy.

Quote Originally Posted by UFI View Post
About all you could do is replace the solid control rod with a friction slip joint or force limiting spring.
The real problem seems to be that the climate control system sometimes forgets what the end positions of the flaps are. Therefore there is another thing you can do: Use MultiEcuScan to check the climate control system as soon as you think you notice any unusual behaviour and use the "flap actuators learning" function to "recalibrate" the system if necessary.
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Old 12-06-2017   #18
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Re: Aircon not working

Quote Originally Posted by AndyRKett View Post
The noise is likely what remains of the gas passing through the expansion valve, fiat expansion valves can be quite noisy when running low on gas. The noise will come and go as the compressor kicks in and out

In a fully charged system you'd not expect to hear anything.
I don't know exactly what sort of sound you are inferring, but we have had 2 500s and a Panda with air con (all 1.2s, two from brand new, one bought at 18 months), and they have all hissed merrily away as the compressor stops and starts. The only one that has been quiet was my 62 plate Punto 1.4 Easy, you could barely hear that at all when A/C is on.

I would never describe the 500 system as quiet, but as with all sounds/niggles it depends on the individual!
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Old 12-06-2017   #19
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Re: Aircon not working

Quote Originally Posted by Super Uwe View Post
I don't know exactly what sort of sound you are inferring, but we have had 2 500s and a Panda with air con (all 1.2s, two from brand new, one bought at 18 months), and they have all hissed merrily away as the compressor stops and starts. The only one that has been quiet was my 62 plate Punto 1.4 Easy, you could barely hear that at all when A/C is on.

I would never describe the 500 system as quiet, but as with all sounds/niggles it depends on the individual!


I stand by my original statement and as confirmed by your 62 plate punto, a properly gassed and working system should not make any loud or intrusive noise during normal operation.

When running low on gas the hiss can become very loud and noticeable just after the pump clicks off.
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