Fishman
A2OC Donor
Hi, I don’t think the PTC heater is working correctly on my 2004MY AMF engined 1.4TDi SE.
I find loads on info on the Webasto auxiliary heating system but not so much on the PTC.
Here are my questions...
Does it require the ambient temp to be 7 Celsius or less like the Webasto?
Are there any ways of performing a diagnostic check on it?
Are they generally reliable units?
Are they easy to change?
As far as the wiring goes I can see that it is fused directly off the battery on a 150A fuse to the heater and then to a earth stud on the bottom of the drivers A pillar. I’ve put a CT clamp around the brown wire near the earth stud. I did not get a current reading. Which either means it’s not working because it’s faulty or because the pre required conditions.
It is purely a cabin heater and unlike the Webasto does not pre-heat the cooling system.
Please help, I’m cold ?
I find loads on info on the Webasto auxiliary heating system but not so much on the PTC.
Here are my questions...
Does it require the ambient temp to be 7 Celsius or less like the Webasto?
Are there any ways of performing a diagnostic check on it?
Are they generally reliable units?
Are they easy to change?
As far as the wiring goes I can see that it is fused directly off the battery on a 150A fuse to the heater and then to a earth stud on the bottom of the drivers A pillar. I’ve put a CT clamp around the brown wire near the earth stud. I did not get a current reading. Which either means it’s not working because it’s faulty or because the pre required conditions.
It is purely a cabin heater and unlike the Webasto does not pre-heat the cooling system.
Please help, I’m cold ?