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Author Topic: Resetting air con  (Read 1736 times)

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Pete-Mac

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Resetting air con
« on: 25 July 2009, 13:05:59 »
Hiya people !
See .. I told you I,d be back ;0)
I,m told by the previous owner that the air con was regassed in May .. and if it hadnt been working properly , the regas wouldnt,ve happened.
However, its not blowing cold at all but again, I,ve been advised that perhaps the air con needs resetting by pushing the "auto" & "off" button at the same time ??? Nothing in the manual to indicate anything like this ... can anyone help please ??
Thanks again & a good weekend to all !
Cheers,
Pete
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feeutfo

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Re: Resetting air con
« Reply #1 on: 25 July 2009, 13:47:24 »
it is in the manual, i have seen it.
Something like press and hold off and auto for 5 seconds or so, or until the vent motors start buzzing. My pre face lift would do it at any time. But my current face lift only seems to do it when ignition key is in position 2, engine off, and beleive Entwood had same issue... Strange.
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Andy B

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Re: Resetting air con
« Reply #2 on: 25 July 2009, 20:07:27 »
Quote
Hiya people !
 ......
However, its not blowing cold at all but again,  .....

Does the compressor clutch in & out when the air/con is selected?
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Pete-Mac

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Re: Resetting air con
« Reply #3 on: 27 July 2009, 15:56:14 »
I,d say not .. doesnt make any difference to the revs ( as per previous post) and I cant hear any signifiacnt noise above the normal engine turn over.
Whereabouts is the compressor ?
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Andy B

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Re: Resetting air con
« Reply #4 on: 27 July 2009, 16:32:45 »
Quote
I,d say not .. doesnt make any difference to the revs ( as per previous post) and I cant hear any signifiacnt noise above the normal engine turn over.
Whereabouts is the compressor ?

As you stand in front of the car .... bottom right hand side!  :y
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Lizzie_Zoom

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Re: Resetting air con
« Reply #5 on: 27 July 2009, 16:40:43 »
Quote
it is in the manual, i have seen it.
Something like press and hold off and auto for 5 seconds or so, or until the vent motors start buzzing. My pre face lift would do it at any time. But my current face lift only seems to do it when ignition key is in position 2, engine off, and beleive Entwood had same issue... Strange.

Yes it is Chris, page 133:

"If the electronic air conditioning system is not
functioning in the usual manner: press the
AUTO and OFF buttons simultaneously for
approx. 5 seconds. The servomotors will be
synchronized, during which time the fan will
temporarily switch off.
If a fault occurs in the electronic air
conditioning system, consult a Vauxhall
Dealership. The system's integral selfdiagnosis
facility allows faults to be quickly
remedied."

 ;) ;)


I would also add, Pete does --  appear in the c/c windows after you switch the ignition off? :-/ :-/
« Last Edit: 27 July 2009, 16:42:18 by Lizzie_Zoom »
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Pete-Mac

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Re: Resetting air con
« Reply #6 on: 27 July 2009, 17:31:11 »
Tried the AOTO & ECO button thing but still pretty warm air when set to LO.
Lizzie, theres nothing on the display at all when ignition switched off.
Tried to check the compressor but I,m buggered if I can spot anything that looks familiar :-[ .. doesnt say too much as I,m very unfamiliar with this engine .. just appears to be a lot of pulleys and belts !!
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Andy B

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Re: Resetting air con
« Reply #7 on: 27 July 2009, 18:49:40 »
Quote
Tried the AOTO & ECO button thing but still pretty warm air when set to LO.
Lizzie, theres nothing on the display at all when ignition switched off.
Tried to check the compressor but I,m buggered if I can spot anything that looks familiar :-[ .. doesnt say too much as I,m very unfamiliar with this engine .. just appears to be a lot of pulleys and belts !!

Follow the belts & pulleys round to the bottom right hand side (as you face the car) of the engine bay!  ;)
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feeutfo

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Re: Resetting air con
« Reply #8 on: 27 July 2009, 18:50:37 »
ac compressor is bottom right pulley on the aux belt, the only belt you can see when facing the engine.
The pulley will be turning or your aux belt would have been thrown off or pump seized. What your looking for is the front facing plate to be turning with the belt. Select lo in both cc panels and make sure eco is NOT selected. With these settings the compressor clutch should engage and the front plate on the bottom right pulley should turn at the same speed as the pulley/belt.

 If the clutch does not engage the front pulley plate then obviously there is a fault. Usually its out of gas and the system has shut down to protect the pump as its lubricated by oil in the gas. No gas means no oil, no oil would mean a buggered pump and very big bill if it did not shut down through lack of gas pressure.

In short, if your compressor plate is not turning with the above settings you need an ac specialist to diagnose the issue. Do NOT use the likes of Kwick Fit or Halfords, muppets as a rule.
Hth

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dbug

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Re: Resetting air con
« Reply #9 on: 27 July 2009, 20:05:19 »
Remove elec plug from compressor (bottom passenger side of engine) and put 12V across compressor terminals (maintaining polarity) - if clutch ok you will hear it clunk in.  No noise = compressor clutch breaked! :(
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Pete-Mac

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Re: Resetting air con
« Reply #10 on: 28 July 2009, 14:23:35 »
Sorry , but thats beyond me ! I dont have access to a 12v supply and I havent got a clue where anything is ont his engine !
All the attached components that are linked to belst appear to be turning as they should so presumably the compressor is too ( is it the one with the 3 bolts in a triangular formation ?). The previous owners advises a regas was done 2 months ago by ....Kwikfit and also the system passed a leak test.
I think it may be time for a visit to an aircon specialist !
Once again, thanks very much indeed for all the hlep and advise.
Cheers,
Pete
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Andy B

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Re: Resetting air con
« Reply #11 on: 28 July 2009, 16:00:42 »
Quote
......
I dont have access to a 12v supply  ....
Your battery is only a foot or two away from the compressor!  :y


 
Quote
...... ( is it the one with the 3 bolts in a triangular formation ?).  .....
Yes! Have someone turn the A/C on & off and you should see those three 'bolts' stop & turn as you do so.
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feeutfo

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Re: Resetting air con
« Reply #12 on: 28 July 2009, 21:28:40 »
Quote
presumably the compressor is too.
No not necessarilly. If you select heat, or eco, it will disengage the compressor, as it should.
You should be able to see the belt wheel turning when engine running, that all fine. Now, with hi or eco selected, the 3 bolts wont spin(compressor not turning, clutch disengaged) lo and eco off and 3 bolts should spin. If not def need ac specialist.

We are asking you to check this, because its possible(but least likely) that vent flaps in the dash are causing the issue. If so, an ac specialist will not be able to fix this, so you "may"be wasting your money. Having said that, the fact that Kwik Fit up have been at it suggests the job may well need doing properly by a professional, the spinning 3 bolts will tell all. Worth persevering....:-)

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Pete-Mac

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Re: Resetting air con
« Reply #13 on: 31 July 2009, 13:21:31 »
OK .. the compressor act in accordance with all you stated before i.e: spinning when a/c active and still when not.
Whats the problem with vent flaps and why isnt it repairable ? Perhaps I,m answering my own question here , but is it becaus the whole dashboard need to come out ? Uneconomical maybe ?
Thanks again to all !!
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