rapserv
11th March 2012, 05:01 PM
Turned the heater on a couple of days ago only to find that it was blowing cold air :mad:
Have done a coolant change today... drained system (including the heater) and flushed old coolant completely with clean water. Refilled with 6.5L of OAT concentrate and 6.5L of fresh water.
Checked operation of linkages on the heater itself (from under drivers side) and all appear to be functioning through their full range. Holding down the temp button/s on the climate control to increase temperature setting moves the actuator arms on the heater blend vanes from what I can see.
Could it be that something may have come adrift within the heater? ie. the coupling between actuator and blend vane?
Or, hopefully, could it be something much simpler?
I did have the fuel cooler out recently to check the o rings and give it a clean. Put it back together with the original o rings as I didn't have a replacement at the time. There are no leaks at the fuel cooler.
Any thoughts greatly appreciated :eek:
Have done a coolant change today... drained system (including the heater) and flushed old coolant completely with clean water. Refilled with 6.5L of OAT concentrate and 6.5L of fresh water.
Checked operation of linkages on the heater itself (from under drivers side) and all appear to be functioning through their full range. Holding down the temp button/s on the climate control to increase temperature setting moves the actuator arms on the heater blend vanes from what I can see.
Could it be that something may have come adrift within the heater? ie. the coupling between actuator and blend vane?
Or, hopefully, could it be something much simpler?
I did have the fuel cooler out recently to check the o rings and give it a clean. Put it back together with the original o rings as I didn't have a replacement at the time. There are no leaks at the fuel cooler.
Any thoughts greatly appreciated :eek: