3308679 - L15 CLIMATE CONTROL NOT HEATING

The fan works properly and sends air into the interior compartment in accordance with the set flows, but this air does not ensure the required heating.

		Results of the tests
1	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check that there are no faults in the climate control control unit	Continue to Step 2	An error is detected in the control unit	Continue following the instructions for the diagnostic equipment
			Lack of dialogue with the control unit	Restore connection between climate control control unit and diagnostic connector ( See   E6020  AIR CONDITIONING )
			Specific software not available	Continue to Step 3
2	ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Using the diagnostic equipment (Examiner or other instruments) carry out the active diagnosis for the mixture motor	Continue to Step 4	Mixing motor connection faulty	Restore the connections ( See   E6020  AIR CONDITIONING ) Continue to Step 4
			Mixture motor faulty	Replace the mixture motor Op.   5040D77  Continue to Step 4
			Mixture motor flap faulty	Replace mixture motor flap Op.   5040C24  Continue to Step 4
3	MIXTURE MOTOR CHECK	All OK	Problems met	Operation
	Check correct operation of mixture motor	Continue to Step 4	Mixture motor faulty	Replace the mixture motor Op.   5040D77
			Mixture motor flap faulty	Replace mixture motor flap Op.   5040C24
4	HEATER PIPE CHECK	All OK	Problems met	Operation
	Check the efficiency and seal of the supply and return pipes to/from the heater.When the engine is hot, the pipes must be hot.	Continue to Step 5	Pipes not connected	Restore the correct connection
			Pipes dirty or obstructed	Clean the pipes or replace them
5	CHECKING HEATER RADIATOR	All OK	Problems met	Operation
	Check the seal of the heater radiator	Continue to Step 6	Pipes not connected	Restore the correct connection
			Radiator dirty or obstructed	Clean the radiator or replace it Op.   5040C50
6	HECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Search for the fault starting from another symptom'