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Old 26th June 2008, 13:22   #1
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Default Baleno AC Problem

I had left my Baleno parked for two months in Delhi as I had to move outstation. On coming back I realised that the battery has gone dead as the person who parked it did not disconnect it. It would have given up anyway in another month as it was weak and due for a change so that is OK.

However I realised that the AC is not cooling at all though it was cutting in(The RPM goes up and engine sound changes). It was heating but no cooling. No improvement afer changing to new battery.

My query is "Has the gas leaked": If yes is it normal for it to happen if left parked in a bit of heat for long time. The AC was working absoultely fine before I left and would chill me every time(Typical Baleno)- So no indiaction beforehand of any impending trouble. And suddenly it has stopped cooling.

I have not taken yet it to a mechanic. Wanted to get an opinion from gurus here on possible malfunctions, so the garage doesnot rip me off.

Thanks!!!
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Old 26th June 2008, 14:49   #2
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the gas may decrease if ac is not used for a long time but one month is not a much long time. in your case it seems to be a leak in system .you can check a leak in system by yourself . just start your car turn on ac and take some soapy water and put it over the pipes and joint of ac . if bubbles are produce over some area there is a leak. if there is no leak then check condenser, evaporator and other components.
you can also take idea if gas has leaked by the load put on engine while ac is turned on .
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Old 26th June 2008, 21:19   #3
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If gas is real low compressor will not "cut in". Better get the HVAC inspected at A S S or at a competent AC specialist.
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Old 26th June 2008, 23:18   #4
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How old is your Baleno?
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Old 27th June 2008, 09:57   #5
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Thanks for replies.
1. you can check a leak in system by yourself .

Harry, I am outstation once again, so will check it on return.

2. If gas is real low compressor will not "cut in".

Jaggu, The compressor is cutting in indicated by RPM rise and engine sound change in a stationary car. Could the problem be electrical?? the AC button green light and all other lights on the AC panel in the dash are functioning.

3. How old is your Baleno?

Mag, the car is slightly short of three year mark, well maintained and run 28000 K .
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Old 1st July 2008, 09:01   #6
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Guys any more suggestions??
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Old 1st July 2008, 09:25   #7
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Not a serious affair,there is a small relay box near the battery,open that box and from the diagram locate a relay for A.C,tap it when your a/c disconnects,if compressor starts working after taping the relay feel that its a time to change it.I normally clean it by opening it but its not a common cup of tea for all.
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Old 1st July 2008, 09:29   #8
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Thanks ECM I will try it.
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Old 1st July 2008, 10:09   #9
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Looks like even though you see change in engine RPM, the compressor clutch is not really getting engaged. Change in RPM means ECM is doing its job, by raising RPM upon sensing A/C ON switch. You can confirm this by observing following-

1. When engine RPM raises, do you also notice some vibration in the beginning as if engine is getting loaded (by compressor)? Probably not, it may be just a smooth transition to higher RPM?

2. Since there is no cooling, once cut in, A/C may not be cutting off at all. Does RPM returns to normal idling speed and raises back repeatedly. Probably not?

3. Though this is not really needed, you may want to try. Locate the actual compressor pulley. The belt on pulley would keep it spinning all the time. But when compressor clutch engages, the wheel portion inside the pulley should also start spinning. I am not sure how easy or difficult would it be to view it, in case of baleno.

Instead of the relay malfunction guessed by ECM, blown A/C fuse seems to be more likely (which is more easy to fix as well). Many people have faced it, refer to following theread- http://www.team-bhp.com/forum/techni...r-problem.html (Baleno airconditioner problem)
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Old 1st July 2008, 12:46   #10
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It can be electrical issue with compressor, or it can be low gas pressure (not empty but on lower side) or it can be a completely chocked grills, but hey its best to take it to a competent garage. Such issues are lil dicey to pinpoint, if you post the diagnosis of the mech, we can further comment if its genuine or hog wash.
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Old 2nd July 2008, 09:20   #11
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Thanks for all the replies.

Moving outstation due to job commitments so no time now to check the car.

However should be back in 10 days time and will report back to all of you.
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Old 27th July 2008, 14:56   #12
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All right Guys, The aircon is fixed and HOW!!!

AC fuse was blown, Changed it but blew again.

Sweltring hot in Delhi so approached a road side slightly OK mechanic to check, as the Workshop ws far away.
Big Mistake.

He checked the system with his most sophisticated tool, the Screwdriver.
I virtually held is hand to prevent him from poking it in wrong places and causing some damage. After some time he declared that the ac fan is unserviceable. Correct diagonosis. As the fan was not turning. Remedy - he replaced the blown fuse with a wire tied around the fuse. I didn,t realise it as I was away for a short time. Any way the AC was working, but the trouble was not licked.

Next day reached workshop. Service guys realised the bonnet won't open. Some more inspection, front wheel covering arch removed, bonnet cable found broken. The road side mechanic has broken while trying to prise the wire of AC fan. Damages 350 Rs.

The makeshift fuse removed and found that the fan is not working and the moment it is connected the fuse would blow. I was still suspecting some shorting somewhere. So the car was taken for further checks and as is the practice the concerned area i.e. the engine bay was given a presssure wash.

The mechanic tried checking it again an lo and behold Whoosh, Khatak some dust spray and some mud particles and suddenly the fan was working.

The trouble was due to long time parking an insect had made a mud mound inside the fan of about 2 inch thich which jammed the fan. This led to repeated blowing of fuse. Luckily that it didn't burn away. This probably got dissolved due to pressure wash and fan started working. Total cost 150 rs of labour.

Lucky me as a new fan would have costed me around 3k plus labour.

So next time you have a peculiar problem it might not be totally mechanical.

Anyway thanks all of you guys.
Mods you can close this thread.
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Old 28th July 2008, 12:28   #13
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Quote:
Originally Posted by MADMAX111 View Post
All right Guys, The aircon is fixed and HOW!!!
......The trouble was due to long time parking an insect had made a mud mound inside the fan of about 2 inch thich which jammed the fan. This led to repeated blowing of fuse. Luckily that it didn't burn away. This probably got dissolved due to pressure wash and fan started working. Total cost 150 rs of labour.
Hey that is the strangest thing I've come across - Sometimes the problem is so simple , yet so elusive. All of us can learn from this.
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