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 Posted: Mon May 02, 2011 10:52 am |
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Joined: Feb 08, 2010
Posts: 819
Trade Rating: +7
Location: Southampton
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It could be a fuse. My car did some really odd things when the fuse protecting my radio blew. As in the radio would only come on if the interior light was off and the engine was revved....
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Posted: Mon May 02, 2011 10:52 am |
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Joined: Feb 07, 2010
Posts: 953
Trade Rating: +1
Location: Bromsgrove
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| Mike_XS wrote: |
| MrrNoName wrote: |
| but i didnt think that the "demand" increased with blower speed, i.e the compressor is either on or off and its load doesnt increase with a higher blower speed, might be wrong though..? |
I don't think it does either. The blower speed only controls the speed of the air passing over the evaporator, of course the faster it goes across the less it will be cooled. The only way I could see it affecting the load on the compressor would be if there was a temp sensor on the evaporator. |
the higher the fan speed the more the refrigerant will "cool" so to stop it from not meeting its demand the compressor works more to circulate the refrigerant keeping the temperature down. Thats how refrigerant circuits work on the systems i work on.
Do these compressors not modulate?
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Posted: Mon May 02, 2011 11:48 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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Seems like you have already decided what the problem is from reading on other sites, so why bother asking on here. People are telling you what they know, if you already know better, then why ask in the first place.
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Posted: Mon May 02, 2011 11:54 am |
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Joined: Dec 16, 2010
Posts: 1533
Trade Rating: +10
Location: UK
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incase someone had already had this problem and it was something other then the resistor.
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| Please Dont take any of my posts as written fact. They are simply my opinion and although to the best of my knowledge true, the information within them may well be incorrect.
Any work you undertake as a result of my posts is done so at your own risk  | |
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Posted: Mon May 02, 2011 12:04 pm |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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| MrrNoName wrote: |
sorry lol that probably was a bit harsh, just had everyone all day saying it needs to be regassed (its just been done so doesnt)  if the compressor works off of electrics why does it clutch into and draw so much power from the engine? |
If the gas has just been done, take it back to them and tell them that since they touched your aircon, it hasn't worked. They are supposed to be the experts.
| MrrNoName wrote: |
| incase someone had already had this problem and it was something other then the resistor. |
Other people have given you advice, but you still harp on about the resistor. Change it, see if it solves the problem, and if it does, happy days. If it doesn't you might start listening to peoples opinions on their experiences and knowledge, rather than things you have read elsewhere.
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Posted: Mon May 02, 2011 1:52 pm |
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Joined: Feb 07, 2010
Posts: 953
Trade Rating: +1
Location: Bromsgrove
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| MrrNoName wrote: |
| incase someone had already had this problem and it was something other then the resistor. |
Other people have given you advice, but you still harp on about the resistor. Change it, see if it solves the problem, and if it does, happy days. If it doesn't you might start listening to peoples opinions on their experiences and knowledge, rather than things you have read elsewhere.[/quote]
Indeed if it does fix it post on here for future reference for everyone else. If it is your air conditioning then get someone who is F-Gas qualified to the new regulations, as the garage before obviously wouldnt of been if it is to blame.
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Posted: Tue May 03, 2011 4:46 pm |
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Joined: Apr 26, 2011
Posts: 39
Trade Rating: 0
Location: Bristol
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| MrrNoName wrote: |
| if the compressor works off of electrics why does it clutch into and draw so much power from the engine? |
Compressor clutch is electric, compressor is still engine driven - clutch is only engaging in positon 1 on your car - hence sort the electrics and there's a fair chance the clutch will say engaged in 2,3,4 as well.
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Posted: Tue May 03, 2011 4:50 pm |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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| stevesey wrote: |
| MrrNoName wrote: |
| if the compressor works off of electrics why does it clutch into and draw so much power from the engine? |
Compressor clutch is electric, compressor is still engine driven - clutch is only engaging in positon 1 on your car - hence sort the electrics and there's a fair chance the clutch will say engaged in 2,3,4 as well. |
Wasting your time mate, OP hasnt bothered with any of the other useful asvice they have been given 
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Posted: Wed May 04, 2011 2:26 am |
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Joined: Dec 16, 2010
Posts: 1533
Trade Rating: +10
Location: UK
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thanks stevesey, if the clutch is electric it makes sense to check the electrics first etc because when the compressor is clutched in it works fine so it probs is a clutching in problem.
oih MrBSI lol, its not that I havnt bothered, ive already done the previous advice thats been given before it was posted, i appreciate everyones help
even yours
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| Please Dont take any of my posts as written fact. They are simply my opinion and although to the best of my knowledge true, the information within them may well be incorrect.
Any work you undertake as a result of my posts is done so at your own risk | |
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Posted: Wed Jun 29, 2011 8:54 am |
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Joined: Dec 16, 2010
Posts: 1533
Trade Rating: +10
Location: UK
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Final Update:
It was indeed the blower motor resistor stopping both the blowers and the air conditioning from working. I purchased a new one from pug (about £20) and fitted it to solve the problem. Upon removal it was obvious that the old resistor had blown (one of the coils had broken)
I found fitting the resistor to be fairly easy and followed this method:
1. Unplug battery
2. Remove glovebox, first the lid (unclips) then the screws (6 screws around the outer edge, 1 hidden on the inside top of the box) then the box pushes down and out
3. The blower motor is located to the right hand side behind the glovebox. unclip the plug from the motor, then turn it 1/4 CLOCKWISE. it feels very stiff but suddenly unclips and comes loose.
4. Look into the pipe and you will be able to see the silver resistor attached to the top. Reach into the intake pipe and turn the resistor to free it from the pipe, then pull it into the pipe and unclip it from its plug (the hardest part).
5. Plug the new resistor in (also difficult with 1 hand) and put it back into the top of the pipe, then refit the motor by turning it 1/4 ANTI-CLOCKWISE.
re-connect the battery and all blower settings and the air-con should now work (mmm icy cold )
This procedure worked on a 1.4 (Y) reg 206 and was far easier then attempting to use the air recirculation pipe (found it way to small for my hands to get in) but may be different for other makes and models
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| Please Dont take any of my posts as written fact. They are simply my opinion and although to the best of my knowledge true, the information within them may well be incorrect.
Any work you undertake as a result of my posts is done so at your own risk | |
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