Aux Heater On A Frosty Day

[smitch]

Hi,

 

I've checked the other posts but cannot find anything about my query.

 

My Aux heater has been working absoutely fine but this morning when the temp was 1c the heater didn't fire up. However when I started the car again to come home from the school run, it fired up first time.

 

Does this mean the start of the dreaded glow plug problems?? Car's done 78000 miles.

 

Is there a cut out in the system which prevents it starting below a certain temp to protect the heater??

[smitch]

Having looked on the FAQ, it does mention the voltage dropping preventing the glowplug firing. I'm wondering if putting the heated screens on may have cause this??

[big_kev]

Is there a cut out in the system which prevents it starting below a certain temp to protect the heater??

 

Nope...

 

It may have just had a bad day.....see if it does it again.

[Bigjeeze]

Well it does have a temp range of between 7 - 10oc - below around 10o C it will come on - if above that it probably won't.

[gregers]

as big kev suggests,just wait to see if it becomes a problem,

 

well mine seems to work when the temp is showing anything up to 12oc,and runs for ages,even when the main temp is showing 90oc it will still run.

 

i think if you run all the heaters then it will stay on until the whole system is up to a constant temp.

[smitch]

Thanks for that.

 

It just seemed strange that when it was really cold it didn't fire but did first time 10 minutes later when I started the car again on the way home. Been working absolutely fine since so will keep an eye on it as suggested.

 

I'll try not putting any electrical load such as window heaters, stereo etc on the car just after starting it up on the next icy day and see if that makes a difference.