1.8T always hot from heater

kaiser · 17th December 2020, 11:47

Our 1.8T is going well, and is a joy to use. It is however getting very hot inside, and it appears that whatever we do, the heater oozes hot air, only a matter of fan or no fan.
We have just had the compressor for the A/C replaced, it had lost part of the casing for the inlet pipe, so the compressor and the A/C works.
Just seems silly to have the A/C fighting the heater!
I am toying with the idea of fitting a mechanical valve in the one heater pipe, to physically stop water entering the heater matrix, but if anyone has a pointer otherwise, it would be much appreciated.
Oh, and a Merry Christmas to everyone!!

COLVERT · 17th December 2020, 11:51

The flaps in your heater have become stuck in the open position.--It could be an electrical fault or hinge seizure.

LeRich · 17th December 2020, 19:23

It would be worth running the ATC unit diagnostics.

https://www.the75andztclub.co.uk/for...47&postcount=1

17th December 2020, 11:47	#1
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	1.8T always hot from heater Our 1.8T is going well, and is a joy to use. It is however getting very hot inside, and it appears that whatever we do, the heater oozes hot air, only a matter of fan or no fan. We have just had the compressor for the A/C replaced, it had lost part of the casing for the inlet pipe, so the compressor and the A/C works. Just seems silly to have the A/C fighting the heater! I am toying with the idea of fitting a mechanical valve in the one heater pipe, to physically stop water entering the heater matrix, but if anyone has a pointer otherwise, it would be much appreciated. Oh, and a Merry Christmas to everyone!! __________________ Worth his V8 in gold

17th December 2020, 19:23	#3
LeRich Posted a thing or two Rover 75 Cont SE 1.8T Join Date: Aug 2010 Location: Cheshire Posts: 1,082 Thanks: 215 Thanked 232 Times in 178 Posts	It would be worth running the ATC unit diagnostics. https://www.the75andztclub.co.uk/for...47&postcount=1 __________________ Rover 75 1.8T Contemporary SE Auto Starlight Silver MBB

17th December 2020, 11:51	#2
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	The flaps in your heater have become stuck in the open position.--It could be an electrical fault or hinge seizure.