Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Entwood on 09 January 2009, 22:25:54
-
When the car is first started the climate works great - obviously the engine has to warm up before it can give heat - and will hold the temperature really nicely.
However, if the engine is switched off then restarted several times within a short period ... as was done yesterday during the MOT for example, or when refuelling then doing the tyres ..... the CC will sometimes revert to a "no heat" mode, no matter what is done with the controls. A reset makes no difference (and takes about 20 seconds of auto+off to start .. then about 20 seconds to complete).
The engine has to be switched off for about 30-40 minutes after which it will all work quite normally.
The only options I can think of are a faulty ECU .... :( or possibly a sticking HBV ???
Anyone any thoughts or ideas on diagnosis or remedy ???
-
a live data reading on it may prove useful... ...how far you from Mr Wood?
-
a live data reading on it may prove useful... ...how far you from Mr Wood?
70 odd miles :( Trouble is .. I can't always repeat the fault, 'tis a tad intermittent :(
-
Might be worth feeling the heater matrix pipes in the driver's footwell next time it does it - see if there is coolant circulation. :-/
Kevin
-
Might be worth feeling the heater matrix pipes in the driver's footwell next time it does it - see if there is coolant circulation. :-/
Kevin
Good thought ... I'll try and remember it !!! .. Sod's Law says it won't happen for ages now !!!
-
I read in some marketing blurb somewhere that the climate control remains active for a period after shutdown monitoring temperatures, so it knows what to do on start-up. Sounds like perhaps it doesn't recover from this state properly?
Maybe a re-flash of the climate will help - it may well result in its' NVRAM getting cleared out. There may be something spurious that's in there and causing it to act up. Lots of maybe's there though. :-/
Kevin
-
you could try to reset the unit.
pressing the off and auto at the same time.
Gr Jack
-
you could try to reset the unit.
pressing the off and auto at the same time.
Gr Jack
..................... A reset makes no difference (and takes about 20 seconds of auto+off to start .. then about 20 seconds to complete).....................
:(
-
I read in some marketing blurb somewhere that the climate control remains active for a period after shutdown monitoring temperatures, so it knows what to do on start-up. Sounds like perhaps it doesn't recover from this state properly?
Maybe a re-flash of the climate will help - it may well result in its' NVRAM getting cleared out. There may be something spurious that's in there and causing it to act up. Lots of maybe's there though. :-/
Kevin
Thats a thought .. as TB had a small amount of trouble getting it load when he did it at the WIM opening some while ago now. I might have to take a drive down to you when I can find some free time that fits your plans .. !!!
-
I read in some marketing blurb somewhere that the climate control remains active for a period after shutdown monitoring temperatures, so it knows what to do on start-up. Sounds like perhaps it doesn't recover from this state properly?
Maybe a re-flash of the climate will help - it may well result in its' NVRAM getting cleared out. There may be something spurious that's in there and causing it to act up. Lots of maybe's there though. :-/
Kevin
Thats a thought .. as TB had a small amount of trouble getting it load when he did it at the WIM opening some while ago now. I might have to take a drive down to you when I can find some free time that fits your plans .. !!!
No problem. :y
Kevin