Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: blackviper90210 on 14 November 2013, 14:40:03

Title: No heat....
Post by: blackviper90210 on 14 November 2013, 14:40:03
Carrying on from my heater pipes saga......

The HBV pipes are all hot, so assume that means it's working.

In the cabin, heat is only coming through the central vents and bloody cold in all the others :(

What would be the next thing to check please?


TIA.  :y
Title: Re: No heat....
Post by: Entwood on 14 November 2013, 14:48:55
The fact you have heat from the centre vents means the matrix/HBV is working as advertised ... I would suspect the blend flaps as they control were the air goes ... can be seen - with a bit of difficulty by lying on your back on a seat with head in the footwell and look behind the consul .... get someone to make differing selections and see if the flaps move at all ..

This "might" help a little ...

http://www.omegaowners.com/forum/index.php?topic=90575.0



 
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 11:07:32
Thanks Entwood, just been out and had a go at the guide you passed on, unfortunately this doesn't seem to be the problem either  :(

The arm at the back is secure already and moves into position as I switch the climate control on. Vents open and close depending on selection, but still only warm air comes out of the central vents. This never gets hot either, just warm.

Any other suggestions please?  ???
Title: Re: No heat....
Post by: 05omegav6 on 16 November 2013, 12:17:24
Matrix flush :-\ seems easy enough to do...
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 12:19:54
Already tried that one, not much crud came out!

Flushed both ways twice before putting back together :y
Title: Re: No heat....
Post by: 05omegav6 on 16 November 2013, 12:24:45
What's the temp gauge doing :-\
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 12:42:13
Engine temp running around 90 degrees  ;)
Title: Re: No heat....
Post by: 05omegav6 on 16 November 2013, 13:05:34
Not the thermostat then :-\
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 13:08:59
Surfing the net looking for possible solutions. One that I'm at, at the moment suggests removing the pollen filter and opening the valve/flap and this should allow hot air into the cabin.

Waiting to put the baby up for a nap before I can go and check this out  :-\
Title: Re: No heat....
Post by: Entwood on 16 November 2013, 14:23:15
Surfing the net looking for possible solutions. One that I'm at, at the moment suggests removing the pollen filter and opening the valve/flap and this should allow hot air into the cabin.

Waiting to put the baby up for a nap before I can go and check this out  :-\

Thats the recirculating flap .. normally open to admit fresh air, closed it recirculates the cabin air continuously ...  will get hotter faster .. but humidity also builds up and causes extreme misting especially in damp weather.

Are the pipes into/out of the matrix as hot as the pipes at the HBV ?? if both are then the flow through the matrix should be good and its purely a distribution problem, if they are not, then its flow through the matrix ... have you tried taking the vac pipe off the top of the HBV ?? (block the pipe with a small screw but leave the HBV side open to atmosphere )
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 15:17:31
Surfing the net looking for possible solutions. One that I'm at, at the moment suggests removing the pollen filter and opening the valve/flap and this should allow hot air into the cabin.

Waiting to put the baby up for a nap before I can go and check this out  :-\

Thats the recirculating flap .. normally open to admit fresh air, closed it recirculates the cabin air continuously ...  will get hotter faster .. but humidity also builds up and causes extreme misting especially in damp weather.

Are the pipes into/out of the matrix as hot as the pipes at the HBV ?? if both are then the flow through the matrix should be good and its purely a distribution problem, if they are not, then its flow through the matrix ... have you tried taking the vac pipe off the top of the HBV ?? (block the pipe with a small screw but leave the HBV side open to atmosphere )

Just been out and tried that mate. Engine temp approx 85/90, vac pipe off HBV and plugged with screw. Both HBV pipes into bulkhead hot.

Turn climate control onto high, only central vent barely warm as normal, all other vents blowing bloody freezing!  :-\
Title: Re: No heat....
Post by: Andy H on 16 November 2013, 16:07:12
Carrying on from my heater pipes saga......

The HBV pipes are all hot, so assume that means it's working.

In the cabin, heat is only coming through the central vents and bloody cold in all the others :(

What would be the next thing to check please?


TIA.  :y
Have you already tried resetting the climate control system? (press both off and auto buttons for about 5 seconds and the climate system will drive all the servos from end to end. It can help if any of the servos have lost their calibration)
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 16:13:49
Carrying on from my heater pipes saga......

The HBV pipes are all hot, so assume that means it's working.

In the cabin, heat is only coming through the central vents and bloody cold in all the others :(

What would be the next thing to check please?


TIA.  :y
Have you already tried resetting the climate control system? (press both off and auto buttons for about 5 seconds and the climate system will drive all the servos from end to end. It can help if any of the servos have lost their calibration)

Yep, afraid so. It was the only thing I did know to do first, lol. When that failed, I then came on here asking for help and advice  :-[ :-[
Title: Re: No heat....
Post by: RobG on 16 November 2013, 18:31:17
Quote
Turn climate control onto high, only central vent barely warm as normal, all other vents blowing bloody freezing
Outside temp sensor working OK?
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 19:53:56
Quote
Turn climate control onto high, only central vent barely warm as normal, all other vents blowing bloody freezing
Outside temp sensor working OK?

Yep! This is a real pain as I freeze on the way into work each morning  >:(
Title: Re: No heat....
Post by: dbug on 16 November 2013, 21:49:04
Replace heater matrix ;)
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 21:51:46
Replace heater matrix ;)

Is that an offer.  ::) ;D ;D ;D
Title: Re: No heat....
Post by: dbug on 16 November 2013, 21:59:09
Replace heater matrix ;)

Is that an offer.  ::) ;D ;D ;D

No advice - easy job though - did the keyhole surgery on my old Elite ;)
Title: Re: No heat....
Post by: blackviper90210 on 16 November 2013, 22:16:41
Replace heater matrix ;)

Is that an offer.  ::) ;D ;D ;D

No advice - easy job though - did the keyhole surgery on my old Elite ;)

Lol, just read the how to on it! I'm likely to end up with half the dash cut away, no wires intact and swimming pool made of coolant!  ;D
Title: Re: No heat....
Post by: tunnie on 17 November 2013, 13:47:22
Got similar situation on my 3.2, heat was poor. Flushed matrix it's a lot better, on high the heat is good almost burning hands on centre vents, but side ones are cool.

Need to have temp at 24/25, in this cold weather it's been fine. But could be a lot better, likewise, flushed, reset and flap checked, front below at least
Title: Re: No heat....
Post by: blackviper90210 on 17 November 2013, 20:37:15
Got similar situation on my 3.2, heat was poor. Flushed matrix it's a lot better, on high the heat is good almost burning hands on centre vents, but side ones are cool.

Need to have temp at 24/25, in this cold weather it's been fine. But could be a lot better, likewise, flushed, reset and flap checked, front below at least

Beginning to wonder if my matrix is partially blocked still?

My outside tap doesn't have much pressure so beginning to think it may not have been strong enough to move the crud :-\

 Washing powder or kettle descaler? Which is recommended?  ???
Title: Re: No heat....
Post by: tunnie on 17 November 2013, 21:30:46
Given the burning heat on Hi, I don't think it's a matrix issue. As driving along my feet are nice and toasty! Rest is ok too. So bit puzzled. Sounds like yours is very similar!
Title: Re: No heat....
Post by: P2AJB on 21 November 2013, 15:26:44
Hi  Sorry I can't help you but if you find the answer I'd be pleased to hear it, mine does exactly the same, warm centre vent cold everywhere else.
Title: Re: No heat....
Post by: blackviper90210 on 23 November 2013, 20:21:34
Right then O'mighty ones......

Been out with Tall Paul today looking at a mig for him.  On the way home, Paul drove my mig. It was only then I noticed that I have heat coming out the vents on the passenger side, but the drivers side is stone cold still  ???

Now when the windscreen demister is on, the passenger side clears fairly quickly, but the drivers side is a lot slower as if its partially blocked or not blowing at all?

Are these related?

Any ideas as to why the passenger side would blow hot and the drivers side cold?   TIA :y
Title: Re: No heat....
Post by: PhilRich on 23 November 2013, 21:19:53
Have a look at this  :y

http://www.omegaowners.com/forum/index.php?topic=90575.0
Title: Re: No heat....
Post by: symes on 24 November 2013, 15:51:48
Have a look at this  :y

http://www.omegaowners.com/forum/index.php?topic=90575.0
if same after that----you hot same problem Waynester had---vacuum pipe under dash was trapped---many on here said matrix/servo arm etc-it was pipe trapped-by person who fitted his phone kit >:(
Title: Re: No heat....
Post by: blackviper90210 on 25 November 2013, 20:36:16
Have a look at this  :y

http://www.omegaowners.com/forum/index.php?topic=90575.0
if same after that----you hot same problem Waynester had---vacuum pipe under dash was trapped---many on here said matrix/servo arm etc-it was pipe trapped-by person who fitted his phone kit >:(

Don't suppose you know where this vac pipe might be do you?  ??? :)