L12 CLIMATE CONTROL TOO COLD - Lancia - Ypsilon - eLearn

2427584 - L12 CLIMATE CONTROL TOO COLD

The control button operates the passenger compartment air fan normally, but the temperature of the air is not correct.

0	PRELIMINARY CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that the evaporator air filter is not blocked	Continue to Step 1	Evaporator air filter blocked	Replace the evaporator filter
1	CHECKING SYSTEM PRESSURE	All OK	Problems met	Operation
	Connect the climate control system to the repressurizing equipment and check the system pressure. See Test 5040A CHECK ON OPERATION OF AIR CONDITIONING SYSTEM (TEMPERATURE)	Continue to Step 2	System pressure incorrect.Coolant pressure too low or too high	Restore correct system pressure Op. 5040A10restoring the correct coolant level
2	CHECKING WITH DIAGNOSTIC EQUIPMENT	All OK	Problems met	Operation
	Connect the diagnostic equipment and check for errors: in air mixing motors in treated air sensors in frost sensor	Continue to Step 4	Air mixing motor error.	Continue to Step 3
			Air mixing motor error.	Continue to Step 3
			Air mixing motor error.	Continue to Step 3
3	ELECTRICAL CIRCUIT CHECK	All OK	Problems met	Operation
	Check continuity/insulation of electrical connection: for air mixing motors if there is an error at the mixing motors; for the treated air sensors if there is an error at the treated air sensor; for the frost sensor if there is an error at the frost sensor.	Continue to Step 7	Electrical conection broken or not insulated.	Restore electrical connection continuity/insulation.
4	CHECKING PIPES AND FILTER	All OK	Problems met	Operation
	Check that high and low pressure pipes and the drier filter for air conditioning system are not blocked.	Continue to Step 5	Pipe from compressor to condenser blocked.	Change the pipe from compressor to condenser Op. 5040A50
			Pipe from filter to expansion valve blocked.	Change the pipe from filter to expansion valve Op. 5040S54
			Drier filter blocked and/or damaged.	Replace the filter Op. 5040A44
5	CONDENSER CHECK	All OK	Problems met	Operation
	Check that the condenser is not blocked.	Continue to Step 6	Condenser blocked	Replace the condenser Op. 5040A40
6	EXPANSION VALVE CHECK	All OK	Problems met	Operation
	Check that the expansion valve is working properly	Continue to Step 8	Expansion valve stuck closed.	Replace the expansion valve Op. 5040B30
7	CHECKING CORRECT OPERATION USING TESTER	All OK	Problems met	Operation
	Check for persistent errors: at the air mixing motors (after self-learning procedure); in treated air sensors in frost sensor	End of diagnosis	Air mixing motor error	Replace the mixed air motor
			Treated air sensor error	Change the treated air sensor Op. 5010D28
			Frost sensor error	Change the frost sensor Op. 5040A22
8	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Change the climate control system node Op. 5040D18