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Honda Jazz Forums => Honda Jazz Mk1 2002-2008 => Topic started by: guest2814 on October 05, 2011, 05:00:31 PM

Title: air con problems
Post by: guest2814 on October 05, 2011, 05:00:31 PM

clattering sound when air con is switched on

Title: Re: air con problems
Post by: guest1844 on October 05, 2011, 10:32:53 PM

Does it work (ie blow cold)?

Is the sound from under the bonnet? If so, sounds like the aircon clutch, which engages the compressor when cooling is required.

Title: Re: air con problems
Post by: olduser1 on October 06, 2011, 08:44:31 AM

What changed before the noise started?
More info required but v difficult to diagnose any noise remotely

Title: Re: air con problems
Post by: guest2814 on October 06, 2011, 04:06:14 PM

 Thanks for replies
Air Con blows cold OK. Air con off, heater on, nice and quiet, Switch Air Con on with heater still on, a clattering sound under bonnet. back of engine where air con unit is fitted. Somebody has said it could be aircon drive belt. Albert

Title: Re: air con problems
Post by: guest1583 on October 08, 2011, 09:31:09 AM

it looks normal, ac condenser do really produces a bit of sound, but if its too loud and very uncomfortable something wrong with it.

Title: Re: air con problems
Post by: VicW on October 11, 2011, 03:14:23 PM

With the air con switched on the air con compressor cuts in and out as required to make the system work.This means an increase in under bonnet noise when the compressor cuts in.
If the air con is working then the compressor clutch is engaging/disengaging properly.
It makes no difference whether the heater is on at the same time or not.
The compressor is driven from the same belt that drives the alternator.

Vic.

Title: Re: air con problems
Post by: VicW on October 13, 2011, 03:55:06 PM

It is also worth noting that when the air con is switched on,one of the radiator cooling fans starts up to cool the air con condenser.

Vic.

Title: Re: air con problems
Post by: guest593 on October 24, 2011, 08:11:23 PM

Quote from: VicW on October 13, 2011, 03:55:06 PM

It is also worth noting that when the air con is switched on,one of the radiator cooling fans starts up to cool the air con condenser.

Vic.

Yes, it comes on frequently