Hot one side,Cold the other

GardO71 · 3rd May 2010, 15:14

Hi all,

i am in need of your expert advise if possible.

the heater on my 2001 2.5 v6 75 is not quite right, when you put the heater to cold,even with the air con on, it is giving nice cool air from the drivers side vents, but the passenger side vents are blowing warm/hot air still.

when i put the heater controls to hot it blows hot from both drivers and passenger sides.

any ideas please, as i'm very new to the pleasure of these 75's, but am loving it thus far(3 weeks)

many thanks

Dave

geesmith · 3rd May 2010, 15:26

I would suggest checking the user maual to find if you have the system set to give the fault you are describing. I'm extremely green about the controls as I don't even have posession of mine yet but I did download the manual last night and read various functions that you could programme that sound similar to what you describe. I may be barking up the wrong tree at this early stage.

Have you got an additional set of temp buttons on the passenger side? If so.....dual climate spoils passengers..

GardO71 · 3rd May 2010, 15:28

cheers, i'll give that a shot.

and where may i find it to d/l?

geesmith · 3rd May 2010, 15:36

Here you go (just searche rover 75 owner handbook...came from Rover.org)

http://www.roverclub.cz/storage/Rover75.pdf

I think you'll be delighted. click on "save a copy" near the top left.

The owners manual download link is also at the top of Technical help titled "really really useful tips" .... this site hasn't been idle! Much much more in that thread... I'm off for a read.

GardO71 · 3rd May 2010, 16:24

thanks for the link geesmith.

i've had a quick glance at it but can find no reference to the problem i'm experiencing, it is the ATC version but i've tried all the settings to no avail.

even if i set the temp controls to equal value ie ' LO ' it still gives warm air to the passenger side, it's not hot air, just warm.

i was wondering if there was some sort of flappy thing which may not be moving fully to allow cold air to be dispensed.

geesmith · 3rd May 2010, 16:37

Drat, sorry to hear that and I'm afraid my assistance runs dry there.

I was hoping that you would find the twin set of temp controls on the passenger side of the climate controls and that would solve it. it does sound like something is adrift or seized.

Kandyman · 3rd May 2010, 16:45

Sounds like it could be a Blocked heater matrix giving it a flush thru should help.

If you search on matrix it should five you some tips.

GardO71 · 3rd May 2010, 17:50

Quote:

Originally Posted by Kandyman

Sounds like it could be a Blocked heater matrix giving it a flush thru should help.

If you search on matrix it should five you some tips.

ah it could well be cos when i bought the car the curved pipe by the thermostat housing had split,been covered silicone sealer and the water system packed to the gunnels with radiator stop leak stuff. so i think a total system drain,clean and flush may be in order.

i'll crack on with that this week.

many thanks

GardO71 · 3rd May 2010, 21:14

Ok, i've just this minute run the ATC climate control diagnostics checks, it is 2200 GMT so i think 2 off the 3x faults are irrelevant namely 21 and 22 as it is dark lol, but i think my main problem is the code 31

what do you think???

the codes i'm getting are:

21 - Sunlight sensor, left output open or short circuit no solar heating correction

22 - Sunlight sensor, right output open or short circuit no solar heating correction

31 - LH temperature servo motor open, or short circuit, motor or flap mechanism seized, servo motor locked in position.

where will i find this LH temperature servo motor or flap???

GardO71 · 4th May 2010, 14:42

****bump****

3rd May 2010, 15:14	#1
GardO71 Newbie Rover 75 saloon 2.5v6 Connoisseur Join Date: Apr 2010 Location: Oxford Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	Hot one side,Cold the other Hi all, i am in need of your expert advise if possible. the heater on my 2001 2.5 v6 75 is not quite right, when you put the heater to cold,even with the air con on, it is giving nice cool air from the drivers side vents, but the passenger side vents are blowing warm/hot air still. when i put the heater controls to hot it blows hot from both drivers and passenger sides. any ideas please, as i'm very new to the pleasure of these 75's, but am loving it thus far(3 weeks) many thanks Dave Last edited by GardO71; 3rd May 2010 at 15:22..

3rd May 2010, 15:26	#2
geesmith Regular poster Rover 75 '03 Connoisseur CDT Auto Saloon prescription windscreen model Join Date: Apr 2010 Location: Rotherham South Yorks Posts: 74 Thanks: 0 Thanked 0 Times in 0 Posts	I would suggest checking the user maual to find if you have the system set to give the fault you are describing. I'm extremely green about the controls as I don't even have posession of mine yet but I did download the manual last night and read various functions that you could programme that sound similar to what you describe. I may be barking up the wrong tree at this early stage. Have you got an additional set of temp buttons on the passenger side? If so.....dual climate spoils passengers.. Last edited by geesmith; 3rd May 2010 at 15:28..

3rd May 2010, 15:36	#4
geesmith Regular poster Rover 75 '03 Connoisseur CDT Auto Saloon prescription windscreen model Join Date: Apr 2010 Location: Rotherham South Yorks Posts: 74 Thanks: 0 Thanked 0 Times in 0 Posts	Here you go (just searche rover 75 owner handbook...came from Rover.org) http://www.roverclub.cz/storage/Rover75.pdf I think you'll be delighted. click on "save a copy" near the top left. The owners manual download link is also at the top of Technical help titled "really really useful tips" .... this site hasn't been idle! Much much more in that thread... I'm off for a read. Last edited by geesmith; 3rd May 2010 at 16:06.. Reason: more info

3rd May 2010, 16:37	#6
geesmith Regular poster Rover 75 '03 Connoisseur CDT Auto Saloon prescription windscreen model Join Date: Apr 2010 Location: Rotherham South Yorks Posts: 74 Thanks: 0 Thanked 0 Times in 0 Posts	Drat, sorry to hear that and I'm afraid my assistance runs dry there. I was hoping that you would find the twin set of temp controls on the passenger side of the climate controls and that would solve it. it does sound like something is adrift or seized. Last edited by geesmith; 3rd May 2010 at 16:39..

3rd May 2010, 15:28	#3
GardO71 Newbie Rover 75 saloon 2.5v6 Connoisseur Join Date: Apr 2010 Location: Oxford Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	cheers, i'll give that a shot. and where may i find it to d/l?

3rd May 2010, 16:24	#5
GardO71 Newbie Rover 75 saloon 2.5v6 Connoisseur Join Date: Apr 2010 Location: Oxford Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	thanks for the link geesmith. i've had a quick glance at it but can find no reference to the problem i'm experiencing, it is the ATC version but i've tried all the settings to no avail. even if i set the temp controls to equal value ie ' LO ' it still gives warm air to the passenger side, it's not hot air, just warm. i was wondering if there was some sort of flappy thing which may not be moving fully to allow cold air to be dispensed.

3rd May 2010, 16:45	#7
Kandyman Banned ROVER 75 2.5 V6 Connoisseur SE Limousine 2004 Join Date: Oct 2006 Location: Welling Posts: 10,995 Thanks: 0 Thanked 2 Times in 2 Posts	Sounds like it could be a Blocked heater matrix giving it a flush thru should help. If you search on matrix it should five you some tips.

3rd May 2010, 21:14	#9
GardO71 Newbie Rover 75 saloon 2.5v6 Connoisseur Join Date: Apr 2010 Location: Oxford Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	Ok, i've just this minute run the ATC climate control diagnostics checks, it is 2200 GMT so i think 2 off the 3x faults are irrelevant namely 21 and 22 as it is dark lol, but i think my main problem is the code 31 what do you think??? the codes i'm getting are: 21 - Sunlight sensor, left output open or short circuit no solar heating correction 22 - Sunlight sensor, right output open or short circuit no solar heating correction 31 - LH temperature servo motor open, or short circuit, motor or flap mechanism seized, servo motor locked in position. where will i find this LH temperature servo motor or flap???

4th May 2010, 14:42	#10
GardO71 Newbie Rover 75 saloon 2.5v6 Connoisseur Join Date: Apr 2010 Location: Oxford Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts	**bump**