Heater Erratic

Alycidon · Dec 10th, 2018, 18:57

Evening All

Heater on my 05 plate is some what erratic. When either of the temperature controls are on the maximum settings the temperature is constantly going hot and cold, move it down two clicks and its OK. This is in auto and manual modes. Any ideas ??

Goldmember · Dec 11th, 2018, 00:00

I went through a lot of diagnostics on my heating problem . In my case there was aboit 10% heat no matter what setting it was set at.
Out of curiosity have you changed your battery lately? This can cause your symptoms.
After reading numerous articles on forums etc your story sounds familiar and think your 1st step should be recalibrating the heating system using VIDA , this is what is recommended if you have changed the battery or had a flat battery. While it’s connected also check the controls on the heating control panel work using live data. Then it might be a thermostat issue but I have no technical experience. The Volvo Indi changed mine as that was their 1st call since they said that can cause a lot of problems. In the end it turned out to my be heater matrix was gone, but that won’t be your issue.
Definitely get it linked up to VIDA 1st.

Alycidon · Dec 11th, 2018, 04:45

Hi

Thanks for reply, yes have had a flat battery. I'll get it hooked up to VIDA.

Paul.

Dec 10th, 2018, 18:57	#1
Alycidon Junior Member Last Online: Yesterday 20:56 Join Date: Nov 2018 Location: Romford	Heater Erratic Evening All Heater on my 05 plate is some what erratic. When either of the temperature controls are on the maximum settings the temperature is constantly going hot and cold, move it down two clicks and its OK. This is in auto and manual modes. Any ideas ??

Dec 11th, 2018, 00:00	#2
Goldmember Master Member Last Online: Jan 1st, 2024 00:59 Join Date: May 2009 Location: Glasgow	I went through a lot of diagnostics on my heating problem . In my case there was aboit 10% heat no matter what setting it was set at. Out of curiosity have you changed your battery lately? This can cause your symptoms. After reading numerous articles on forums etc your story sounds familiar and think your 1st step should be recalibrating the heating system using VIDA , this is what is recommended if you have changed the battery or had a flat battery. While it’s connected also check the controls on the heating control panel work using live data. Then it might be a thermostat issue but I have no technical experience. The Volvo Indi changed mine as that was their 1st call since they said that can cause a lot of problems. In the end it turned out to my be heater matrix was gone, but that won’t be your issue. Definitely get it linked up to VIDA 1st. __________________ Currently own: V8Bob - 07 XC90 4.4 V8 Sport Previously owned: MegaBob - ‘04 XC90 D5 Spanish! ShedBob - ‘01 Moondust T5 V70, FilthyBob - '04 Silver 2.4 D5 SE V70, Rydell - '99 Silver R AWD V70, SagaBob - '98 Ruby Red 2.5T V70 Last edited by Goldmember; Dec 11th, 2018 at 00:03.

Dec 11th, 2018, 04:45	#3
Alycidon Junior Member Last Online: Yesterday 20:56 Join Date: Nov 2018 Location: Romford	Hi Thanks for reply, yes have had a flat battery. I'll get it hooked up to VIDA. Paul.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)