Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Proz on 16 January 2010, 12:47:05
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I understand the ac cuts out below 5 degrees or so ... car was steaming up badly earlier on despite ac on and set at 22 degrees on AUTO and NOT on re-cycle .....admitedly it was raining hard and temp was between 1-3 degrees ...it has had a new carbon/pollen filter a month ago .... i just dont remember it steaming up so much even when temp was down to -16 a week or so ago .... skuttle is clear as are the rear vents , carpets are dry as well .... am i missing the point of ac ? ... i thought it would still function and de-humidify any incoming air to stop steam up .... it was the same on ECO... :-/
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I understand the ac cuts out below 5 degrees or so ... car was steaming up badly earlier on despite ac on and set at 22 degrees on AUTO and NOT on re-cycle .....admitedly it was raining hard and temp was between 1-3 degrees ...it has had a new carbon/pollen filter a month ago .... i just dont remember it steaming up so much even when temp was down to -16 a week or so ago .... skuttle is clear as are the rear vents , carpets are dry as well .... am i missing the point of ac ? ... i thought it would still function and de-humidify any incoming air to stop steam up .... it was the same on ECO... :-/
yes i remember your previos post, did the new polen filter improve things?
seem to remember having to hit the demist button once ir twice on mine in the cold spell even when well warm in the cabin.
Wondering if the ac is working, has it been re gassed to your knowledge?
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New pollen filter did make a big difference :y ....I did have it checked and re-gassed by Kwik Fit :-[ 3 or 4 months ago .... give them there due it was fine afterwards ( and i got it cheap as i knew one of them ) ..... is there a way to check its working if outside temp is about +3 ?? PS the fan in front of the radiator isnt coming on either like it used to when ac turned on or is that just because its low temperature today :-/
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Anyone any ideas :-/
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Sounds daft, but you could always warm the temp sender up with a hairdryer or hot towel.
Al
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Sounds daft, but you could always warm the temp sender up with a hairdryer or hot towel.
Al
I actually did think about that but i dont think i have a long enough extention lead to get close enough.... nice idea though :y
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How long an extension do you need for a warm towel
Al
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Yeah i think i'll try that .... try and ram it down round the sensor. :y
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Sure the sensor is on the bottom lip of the bumper, easily reached from underneath.
Al
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Sure the sensor is on the bottom lip of the bumper, easily reached from underneath.
Al
Yeah it was one of the first jobs i did on this car ... it was faulty when i got it .
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Hope you get it sorted.
Al
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Well i have not had much success with the warm towel thing ... i'll try again tomorrow in the light ..... is there anyone who has a similar temp outside try and see if at least the fan in front of the radiator as you stand from the front of the car runs when ECO turned off ( currently 2.5 degrees here ) .... im hoping thats normal when the temp goes below the cut off point of 5 degrees according to the manual .... im hoping this isnt going to be another expensive problem :'(
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If memory serves whenever you select ECO the fans all stop, unless the engine temp is that high that it needs cooling !
Select Auto, fans start .. :)
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When i press Eco to turn AC on ... ( IE ECO NOT DISPLAYED ) normally the fan would start .... but now it doesnt start .... i dont know if its because its below the 5 degrees cut off stated in the manual
Car was steaming up but i thought i would still be able to use ac despite low outside temperature to dry the incoming air to stop the windows steaming up .... or am i not understanding how the ac works :-[ ..... i hope im explaining this properly :-/
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When i press Eco to turn AC on ... ( IE ECO NOT DISPLAYED ) normally the fan would start .... but now it doesnt start .... i dont know if its because its below the 5 degrees cut off stated in the manual
Car was steaming up but i thought i would still be able to use ac despite low outside temperature to dry the incoming air to stop the windows steaming up .... or am i not understanding how the ac works :-[ ..... i hope im explaining this properly :-/
That turns AC off mate!!
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If ECO is displayed on the digital display on the facelift cc panel ac is OFF ..... pressing ECO again turns ac ON ... if ECO is NOT displayed on the facelift climate control panel then ac is ON ..... i knew i wasnt explaining this properly :-?.... when air conditioning is turned on the fan in front of the radiator no longer runs like it used to do when i used it in the summer ..... is this just because it is below the point in the manual that the ac cooling compressor turns off
Taken from the manual ... VAUXHALL OMEGA 2002 ......
Operation with the cooling unit is only
possible at temperatures above approx.
5 °C. Below this temperature the cooling
unit (cooling compressor) switches off
automatically.
Does this explain why my ac seems to be not working and my windows were steaming up ......
I dont know how else to explain it better ....
ECO in display =ac OFF
ECO NOT in display = ac ON
I thought i could still use the ac to de-humidify the incoming air to stop the steam up problem or does the air conditioning just cut off completely below 5 degrees as the manual says :-/ :-/ :-/
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Proz, I know you must be pretty cheesed off by now, but try all the relays in the large box on top of the battery & check they are all fitted tightly, also the connectors to both fans. Also do a search for 'fan test' in the forum search facility (this is for 6 cyl cars with fans but should still be ok for 4 cyl models) HTH :y
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Proz ... relay locations shown in this thread .. .. :)
http://www.omegaowners.com/forum/YaBB.pl?num=1176542235
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Proz, I know you must be pretty cheesed off by now, but try all the relays in the large box on top of the battery & check they are all fitted tightly, also the connectors to both fans. Also do a search for 'fan test' in the forum search facility (this is for 6 cyl cars with fans but should still be ok for 4 cyl models) HTH :y
It would appear that no-one seems to understand what im talking about so yes im getting a little frustrated ;D ;D ..... :-/ :-/
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Proz, I know you must be pretty cheesed off by now, but try all the relays in the large box on top of the battery & check they are all fitted tightly, also the connectors to both fans. Also do a search for 'fan test' in the forum search facility (this is for 6 cyl cars with fans but should still be ok for 4 cyl models) HTH :y
It would appear that no-one seems to understand what im talking about so yes im getting a little frustrated ;D ;D ..... :-/ :-/
If I understand you correctly ... when you have the air con running in Auto (not OFF or ECO), the fan no longer turns ... like it used to ( and should AFAIK !!).
You wish to know if this is temp related thing you've read about, or a problem with the electrics ... :)
Hows that ? .. :)
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Proz, I know you must be pretty cheesed off by now, but try all the relays in the large box on top of the battery & check they are all fitted tightly, also the connectors to both fans. Also do a search for 'fan test' in the forum search facility (this is for 6 cyl cars with fans but should still be ok for 4 cyl models) HTH :y
It would appear that no-one seems to understand what im talking about so yes im getting a little frustrated ;D ;D ..... :-/ :-/
If I understand you correctly ... when you have the air con running in Auto (not OFF or ECO), the fan no longer turns ... like it used to ( and should AFAIK !!).
You wish to know if this is temp related thing you've read about, or a problem with the electrics ... :)
Hows that ? .. :)
Yep thats the one ;D ;D ;D ..... is the fan at the front only needed for cooling such as when in summer and therefor doesnt run if like the manual says its below 5 degrees outside .. i used to hear a slight change in engine noise and could hear the fan run when ac turned on ... now it doesnt seem to do anything so i dont know if ac is working or not :y
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Been playing with my diagnostic toy today as was too dark last night .... here is what it says , looks ok to my untrained eye :-/
"My Naff Code Reader" 090821d - PC based diagnostic tool
Date and time> 17/01/2010. 12:5928
Workshop information:
Proz's Omega
Selected model> 2003 Omega-B Body Electronic Climate Control
Control Unit:
KW82 protocol initialized.
ECU ID= 24449468 2800 4001 0
$) 4 2
Part Number: 24449468
Code Index: 004
Code Version: 2
Production Date: 0000
Measuring blocks information:
Identifier 0
Battery Voltage 13.7 V
Ignition Status Active
Auto Switch Inactive
Blower Increment Switch Inactive
Blower Decrement Switch Inactive
Air Distribution Front Switch Inactive
Air Distribution Interior Switch Inactive
Air Distribution Floor Switch Inactive
Air Circulation Switch Inactive
ECO Switch (Economy) Inactive
Off Switch Inactive
Defrost Switch Inactive
Rear Window Heating Switch Inactive
A/C Request Off
Defrost Mode Inactive
Auto Mode Active
Auto Blower Mode Active
Auto Air Circulation Mode Inactive
ECO Mode Active
Off Mode Inactive
Manual Air Distribution Front Inactive
Manual Air Distribution Interior Inactive
Manual Air Distribution Floor Inactive
Manual Air Circulation Inactive
Water Valve Closed
Air Circulation Valve Inactive
Compartment Temperature 18 °C
Outside Temperature 7 °C
Solar Sensor Element Right 0 W/m2
Solar Sensor Element Left 0 W/m2
Calculated Sun Load 0 W/m2
Nominal Right Temperature 24 °C
Nominal Left Temperature 24 °C
Outlet Temperature Floor Left 46 °C
Outlet Temperature Floor Right 46 °C
Outlet Temperature Vent Left 46 °C
Outlet Temperature Vent Right 46 °C
Heatable Rear Window Inactive
Feedback Heatable Rear Window Inactive
Vehicle Speed 0 km/h
Engine Running Signal 22 Hz
Blower Level 1
Blower Feedback 0.39 V
Blower Control Voltage 1.56 V
Blower Motor Active
Dimmer Level 100%
Parking Heater Inactive
A/C Cutoff Mode Active is this the important one ?
Left Blending Flap Position 78%
Right Blending Flap Position 77%
Interior Flap Position 0%
Floor Flap Position 100%
Defrost Flap Position 29%
Left Blending Flap Motor Inactive
Right Blending Flap Motor Inactive
Interior Flap Motor Inactive
Floor Flap Motor Inactive
Defrost Flap Motor Inactive
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Mmm ... temperature outside yesterday was 6 degrees outside and still the ac fan in front of the radiator wouldnt run , i know its still near the claimed 5 degrees cut of stated in the manual ... the engine bay fuses look fine to me but is there any to check in the cabin fuse box ... there are so many ;D
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Sounds like an AC fault but....below 4degC and you dont need aircon to dry the air as its already very dry.
When it happens again...cycle through the re-circ options to reset the recirc valves (with it finishing off as auto re-circ)
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Sounds like an AC fault but....below 4degC and you dont need aircon to dry the air as its already very dry.
When it happens again...cycle through the re-circ options to reset the recirc valves (with it finishing off as auto re-circ)
Ok thanks i will do .... i think i'll take it to Halfrauds and get there free A/C check thing done .... i do have a Haynes manual somewhere for the fuse numbers etc but i cant find the stupid thing ::)
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ok, I had this problem and when I visited the stealers they said that in inclement weather and sub zero tempratures you need to set the Aircon on and press the recirculation button twice so the letter 'A' appears in the centre of the recirulation icon on the display, apparently doing this causes the air to be de-humidified even though the aircon system would not normally start this is an overide, thus meaning no steamed up windows, I thought the were speaking bull, but it worked !!!
Regards steve
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ok, I had this problem and when I visited the stealers they said that in inclement weather and sub zero tempratures you need to set the Aircon on and press the recirculation button twice so the letter 'A' appears in the centre of the recirulation icon on the display, apparently doing this causes the air to be de-humidified even though the aircon system would not normally start this is an overide, thus meaning no steamed up windows, I thought the were speaking bull, but it worked !!!
Regards steve
I'll give that a go .... thanks :y