My 2007 2.7 diesel recently had a front steel water pipe changed.(to lower front of engine)

I have used the air con almost continually since. The weather has now become cooler and I increased

the air temperature. It wouldn't increase and stayed cold even on max setting.

Any ideas anybody.

 

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Update. It was a faulty heater control valve. I bought a new one on e-bay and fitted it. Now perfect. Note:- for the 2007 2.7 diesel it is the 5 port version and is located directly below the right hand (drivers side) headlight. It is accessed from underneath by removing the front lower engine cover (splashguard). It was a relatively simple job.

 

nice one John have the same problem and just ordered off e bay