Climate control too cold
- Make
- Fiat
- Model
- Idea Factory Service Manual
- Year
- 2003–2012
- Section
- Climate control › Climate control too cold
Fault diagnosisClimate control too cold
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 | ||||
| 0 | PRELIMINARY CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check that the evaporator air filter is not clogged | End of diagnosis | Evaporator air filter blocked | Replace 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. | Restore correct system pressure. | |
| Coolant pressure too low or too high | Restore the correct coolant level | |||
| 2 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Connect the examiner and check for errors at the air mixing motors | Continue to Step 4 | Air mixing motor error | Continue to Step 3 | |
| 3 | ELECTRICAL CIRCUIT CHECK | All OK | Problems met | Operation |
| Check the continuity/insulation of the electrical connection for the air mixing motors | 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 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 | |
| Pipe from filter to expansion valve blocked. | Change the pipe from filter to expansion valve | |||
| Drier filter blocked and/or damaged. | Replace the filter Op. 5040A48 | |||
| 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 blocked shut. | Replace the expansion valve Op. 5040B30 | |
| 7 | CHECKING CORRECT OPERATION USING TESTER | All OK | Problems met | Operation |
| Check that the errors at the air mixing motors do not persist (after the self-learning procedure) | End of diagnosis | Air mixing motor error | Replace the mixed air motor | |
| 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 | |
Parts & tools for this job For 2003 Fiat Idea
- TOOLA/C manifold gauge setSearch: AC manifold gauge set
- TOOLUV leak detection kitSearch: AC UV leak detection kit
- PARTCabin filterSearch: Fiat Idea 2003 cabin filter
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