3360301 - L12 CLIMATE CONTROL TOO COLD
The control button operates the passenger compartment air fan normally, but the temperature of the air is not correct.| Results of the tests | ||||
| 1 | CHECKING SYSTEM PRESSURE | All OK | Problems met | Operation |
|---|---|---|---|---|
| Connect the climate control system to the repressurizing equipment and check the system pressure | Continue to Step 2 | System pressure incorrect. | Restore correct system pressure. Op. 5040A10 | |
| 2 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Connect an Examiner and check for errors:
| Continue to Step 4 | Air mixing motor damaged | Continue to Step 3 | |
| Treated air sensor damaged. | Continue to Step 3 | |||
| Frost sensor damaged. | Continue to Step 3 | |||
| 3 | CHECKING ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
Check electrical connection continuity/insulation:
| Continue to Step 8 | Electrical connection interrupted or not insulated. | Restore electrical connection continuity/insulation | |
| 4 | CHECKING PIPES AND FILTER | All OK | Problems met | Operation |
| Check high and low pressure pipes and air conditioning system filter are not blocked. | Continue to Step 5 | Pipes from compressor to condenser blocked. | Change the pipe from compressor to condenser Op. 5040A50 | |
| Pipes from compressor to condenser blocked. | Change the pipe from condenser to filter Op. 5040A52 | |||
| Pipes from compressor to condenser blocked. | Change the pipe from filter to expansion valve Op. 5040S54 | |||
| Pipes from compressor to condenser blocked. | 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 not working properly | Replace the expansion valve Op. 5040B30 | |
| 7 | CHECKING CORRECT OPERATION USING A TESTER | All OK | Problems met | Operation |
Check errors do not persist:
| End of diagnosis | Air mixing motor damaged | Change mixed air motor (if LH) Op. 5040D84 Change mixed air motor (if RH) Op. 5040D86 | |
| Air mixing motor damaged | Change the treated air sensor Op. 5010D28 | |||
| Air mixing motor damaged | Change the frost sensor Op. 5040D22 | |||
| 8 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Change the climate control node Op. 5040D18Search for the fault starting from another symptom' | |