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[markiemark]

hi to all...99 3 litre elite estate....no heat from blower...just cold air...although on windscreen setting i get luke warm air from dash drivers side window vent by the door tweeter.....when i play about with climate controls from one setting to another you can hear it changing over direction flows...heater fan motor working and up to speed.any ideas please chaps

[ians]

First off, try resetting your climate system.  Press and hold a combination of buttons - can't remember which, but it's in the car handbook....  or someone with better memory will say

If that doesn't work , report back

[Liam]

Looking at the number of threads on here, this seems to be affecting just about all Omegas, mine included!!  Mine has had everything checked, cleaned, flushed etc etc apart from the heater bypass valve itself (which doesn't leak, but maybe doesn't work properly either).

Someone on here has fixed the problem by removing the HBV from the circuit altogether (like most cars out there).  I might throw a new HBV at mine and see what happens.

Would be nice if somebody got to the bottom of this!  I mean my cabin does eventually warm up to something acceptable thanks to the lukewarm blow of air, but every other car I've had is capable of properly warming you up with a good hot blast when the engine is warm.  Grrrrrrrr.

Liam

[Jimbob]

First off, try resetting your climate system.  Press and hold a combination of buttons - can't remember which, but it's in the car handbook....  or someone with better memory will say

If that doesn't work , report back

Auto and off for 5 seconds  
you hear the motors whirr, at that point release

[ians]

First off, try resetting your climate system.  Press and hold a combination of buttons - can't remember which, but it's in the car handbook....  or someone with better memory will say

If that doesn't work , report back

Auto and off for 5 seconds  
you hear the motors whirr, at that point release

 

[jonathanh]

ok  take the vac pipe off from the HBV and see if you get heat.  no vac means no heater divert!    If this restores heat to you then you have a vac control problem - trace it.  If it does not AND you can feel that the heater matrix hoses are both hot then the matrix should be: suspect air control box.  If your matrix does not get hot with no vac applied then its the HBV

[markiemark]

thanks guys....can not see anything prop in pore light....not sure what vac pipe we talking about or even were to find it let alone hbv.....will say just checked both pipes into bulk head.1 is hot.other not...when i play with climate controls they all seem to do something..ie sound like opening and closing and air flow comes from dif places when switched over...like i said only seem to get luke warm air up by small vent next to tweeter

[hotel21]

The heater bypass valve looks a wee bit like an upside down starship enterprise with a narrow bore hard plasic pipe coming from the roof/base, depending on how you view it.  Located at the rear lew#ft side of the engine as you stand against the bumper looking at the engine, beneath the large plastic/rubber bit thast goes across the engine bay under the windscreen...

[markiemark]

will have a look for this starship.lo valve in better light.....must say the climate reset..auto and off pressed did produce look warm air from main vents.....was cold before.....

[markiemark]

i will type that last message again........i will look for this upside down starship in better light...lol...the message about the reset..auto and off pressed same time for 5 secs and released did produce luke warm air from main vents.....they were cold before.....engine up to temp when tried

[ians]

thanks guys....can not see anything prop in pore light....not sure what vac pipe we talking about or even were to find it let alone hbv.....will say just checked both pipes into bulk head.1 is hot.other not...when i play with climate controls they all seem to do something..ie sound like opening and closing and air flow comes from dif places when switched over...like i said only seem to get luke warm air up by small vent next to tweeter

might be worth removing hoses and flushing the matrix.  I would expect both to be warm to some degree unless the matrix was blocked

[hotel21]

Check the following.....  

http://www.omegaowners.com/forum/YaBB.pl?num=1193594464