Heater not working / under no circumstances
- Make
- Fiat
- Model
- Doblò Factory Service Manual
- Year
- 2000–2010
- Section
- Climate control › Heater not working / under no circumstances
Fault diagnosisHeater not working / under no circumstances
HEATER NOT WORKING / UNDER NO CIRCUMSTANCES
The fan which sends air into the passenger compartment does not come on
| Results of the tests | ||||
| 1 | FAN FUSE CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the condition of the heater fan fuse See E6010 HEATER | Continue to Step 2 | Fuse defective | Replace the fuse (and search for the cause of the problem) | |
| 2 | FAN RELAY CHECK | All OK | Problems met | Operation |
Check, in order:
| Continue to Step 3 | Relay faulty | Replace the relay | |
| Connections short circuit and/or open circuit | Restore connections | |||
| 3 | FAN CHECK | All OK | Problems met | Operation |
Verify:
| Continue to Step 4 | Motor faulty | Replace the motor Op. 5020A30 | |
| Connecting cables open circuit and/or short circuit | Restore the correct connections | |||
| 4 | FAN CONTROL CHECK | All OK | Problems met | Operation |
| Check the continuity at the passenger compartment air fan control contacts | Continue to Step 5 | Fan control defective | Replace the control Op. 5020B22 | |
| Connecting cables open circuit and/or short circuit | Restore the correct connections | |||
| 5 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | Fault persists | Search for the fault starting from another symptom' | ||
Parts & tools for this job For 2000 Fiat Doblò
- TOOLA/C manifold gauge setSearch: AC manifold gauge set
- TOOLUV leak detection kitSearch: AC UV leak detection kit
- PARTCabin filterSearch: Fiat Doblò 2000 cabin filter
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