audi a6 c6 allroad 2006 heater blower

[chris.d]

guys i am desperate for help .my heater blower was acting erratic would work sometimes and not others.after searching forums i so not sure if it was blower or control unit fixed to blower .so i replaced both blower and control unit with new ones .and hey presto it worked great doing exactly what it should for 1 day 1 trip 20 miles when i started car to come home yes youve guessed no blower at all nothing and now the econ light is on and will not turn off this happened at the same time .please please anyone know the problem
i will really appreciate any help

[MarkTM]

Can be a variety of things:

Aircon needs recharging
Valves sticking
Fuse blown

Have you done a scan?

[chris.d]

hi thanks for the message
i had it scanned before i replaced fan and controller to find the problem fault code1273 faulty fresh air blower so changed this and controller and as i said it worked fine .better than it ever has before for about six start up cycles and 1x 20 mile trip then nothing at all... not even intermittant as i used to be.. have put live fed to fan and it works ok also put old controller back on just in case new one was faulty .but still no joy i have it all appart at the moment fault739 fault of coolant circulation pump? fault256 refigerantpressuresensor disturbed function.
would aircon regass affect the fan working

[MarkTM]

No a regas probably would have no affect, but based on my experience with audi's things have more of a 'knock-on' effect than about any car I've ever driven in my life

I had mine done as part of a groupon offer and it cot me £19.99 at that price I can get it done every year. As it turned out there was no lubrication in the aircon system, so now running perfectly...even if the car is't!

[chris.d]

i have just been testing a..all fuses for aircon and heater are ok .also noticed the aircon pump does not seem to be kicking in(fuse ok though) as no change in revs when i put aircon on lo could it be connected ?anyone

[chris.d]

i have just been testing a..all fuses for aircon and heater are ok .also noticed the aircon pump does not seem to be kicking in(fuse ok though) as no change in revs when i put aircon on lo could it be connected ?anyone

duh stupid me its stuck on econ so pump is not going to work

[gupsterg]

If panel is stuck on "Econ" then "system" is detecting a fault and not allowing A/C. What diag tool are you scanning car with?

[chris.d]

hi thanks for the reply.
not sure what tester it is ..its at my local garage but i will have to go back to them, as the econ sticking on is new only happened a day after i fitted new blower and controller. at the same time new blower stopped working

[chris.d]

well car has been in garage since yesterday morning and i just popped in to see any progress omg my dash is all apart and mechanic is waiting for a wiring diagram.. as he cannot find the fault .he said it is possibly the new febi control unit i fitted audi has quoted £220 + vat for a new control unit but not agreeing to that until i know exactly what the fault is .and now to top it all the ignition key is stuck in the barrel .seems the auto stick sensor thinks its still in gear .the only fault showing .is bus something ?? not communicating

[MarkTM]

key can be removed with an unbent paperclip