a different heater problem

g-mac · 11th January 2010, 15:50

thought it would be easier to start this thread rather than add on to the similar one below

ive had heater problems for ages
ive tryed everything listed on this forum
*cleaned matrix
*replaced matrix
*flushed system several times

my temperature levels read normal and both pipes to and fro matrix are hot as normal, my windscreen air is warm but everything else is luke warm or worse

what i want to know is could this be a flap problem, aka the flap motor or flap itself is stuck and wont open to let the warm air blow through the vents?

id so any ideas where and how i get to the motor/flap?

thanks
Gareth

T-Cut · 11th January 2010, 16:28

If the matrix itself is getting hot - and I mean HOT, then it's an air distribution issue (ie flaps control). However, I'd still suspect the primary heat supply, ie matrix. Are both heater hoses untouchable when it's up to running temp?

TC

g-mac · 11th January 2010, 17:00

yes both pipes are too hot to touch

where is the flap control part? any ideas

Cymrudragon · 11th January 2010, 17:16

Quote:

Originally Posted by g-mac

yes both pipes are too hot to touch

where is the flap control part? any ideas

There are two that opperate the flaps, eather side of the footwell thease can be heard working if you get your head close enough.

on some models the Distrabution motor is in the drivers footwell.
also check the blower motor in in footwell drivers side and the resistors are working

SD1too · 11th January 2010, 17:21

Gareth,

Do you have the ATC (automatic temperature control) air conditioning system?

Is the airflow (as opposed to the temperature of the air) normal from the vents?

Is the heater fan operating normally at all its speeds?

Simon.

g-mac · 11th January 2010, 18:10

Quote:

Originally Posted by SD1too

Gareth,

Do you have the ATC (automatic temperature control) air conditioning system?

Is the airflow (as opposed to the temperature of the air) normal from the vents?

Is the heater fan operating normally at all its speeds?

Simon.

yes yes and yes

its the digital dual climate control unit with air-con and auto etc
ive just had a wee read through the haynes manual and will have a look at all three motors, distribution, recirculation and temperature
fingers crossed

cant think what else would cause it

couldnt be an air lock if temperature is normal and everything bar hot air works?

T-Cut · 11th January 2010, 18:19

The heat's obviously coming into the matrix. It's not warming any air to heat the cab. Either an air blower or a direction flap seems to be preventing that happening.

TC

Fraser Mitchell · 11th January 2010, 20:56

Does setting the system manually (turn off 'Auto'), make any difference ? (Set to hot then to car not screen). If ATC thinks car is too hot it won't try to heat it. There is an internal temperature sensor somewhere on the car.

bl52krz · 11th January 2010, 21:18

Quote:

Originally Posted by Fraser Mitchell

Does setting the system manually (turn off 'Auto'), make any difference ? (Set to hot then to car not screen). If ATC thinks car is too hot it won't try to heat it. There is an internal temperature sensor somewhere on the car.

set to econ and put on hi and you can toast yourself silly.

g-mac · 12th January 2010, 01:15

Quote:

Originally Posted by bl52krz

set to econ and put on hi and you can toast yourself silly.

thats just it

its always on econ and set to hi
stil nothing
morning will decide if flap is to blame
thanks

11th January 2010, 15:50	#1
g-mac Gets stuck in ZT 190+ Join Date: Jun 2009 Location: Ballymena, Northern Ireland Posts: 851 Thanks: 0 Thanked 0 Times in 0 Posts	a different heater problem thought it would be easier to start this thread rather than add on to the similar one below ive had heater problems for ages ive tryed everything listed on this forum cleaned matrix replaced matrix *flushed system several times my temperature levels read normal and both pipes to and fro matrix are hot as normal, my windscreen air is warm but everything else is luke warm or worse what i want to know is could this be a flap problem, aka the flap motor or flap itself is stuck and wont open to let the warm air blow through the vents? id so any ideas where and how i get to the motor/flap? thanks Gareth

11th January 2010, 17:21	#5
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,394 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Gareth, Do you have the ATC (automatic temperature control) air conditioning system? Is the airflow (as opposed to the temperature of the air) normal from the vents? Is the heater fan operating normally at all its speeds? Simon. __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

11th January 2010, 16:28	#2
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	If the matrix itself is getting hot - and I mean HOT, then it's an air distribution issue (ie flaps control). However, I'd still suspect the primary heat supply, ie matrix. Are both heater hoses untouchable when it's up to running temp? TC

11th January 2010, 17:00	#3
g-mac Gets stuck in ZT 190+ Join Date: Jun 2009 Location: Ballymena, Northern Ireland Posts: 851 Thanks: 0 Thanked 0 Times in 0 Posts	yes both pipes are too hot to touch where is the flap control part? any ideas

11th January 2010, 18:19	#7
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	The heat's obviously coming into the matrix. It's not warming any air to heat the cab. Either an air blower or a direction flap seems to be preventing that happening. TC

11th January 2010, 20:56	#8
Fraser Mitchell Gets stuck in Rover 75 2.5 V6 Club Auto Join Date: Feb 2007 Location: Crewe Posts: 898 Thanks: 0 Thanked 0 Times in 0 Posts	Does setting the system manually (turn off 'Auto'), make any difference ? (Set to hot then to car not screen). If ATC thinks car is too hot it won't try to heat it. There is an internal temperature sensor somewhere on the car.