Heater not heating
- Make
- Fiat
- Model
- Doblò Factory Service Manual
- Year
- 2000–2010
- Section
- Climate control › Heater not heating
Fault diagnosisHeater not heating
HEATER NOT HEATING
The fan works properly and sends air to the passenger compartment in accordance with the set flows, but this air does not ensure the required heating.
| Results of the tests | ||||
| 1 | HEATER PIPES CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the efficiency and seal of the supply and return pipes to/from the heater. | Continue to Step 2 | Pipes badly connected | Restore the correct connections | |
| Pipes dirty, obstructed or broken | Clean or replace the pipes | |||
| 2 | MIXTURE CONTROLS CHECK | All OK | Problems met | Operation |
| Check the mixer control cable is correctly fitted. Also make sure that the mixture flap moves freely. | Continue to Step 3 | Connection defective | Restore the connection or replace the cable Op. 5020B42 | |
| Flap stuck or defective | Restore the operation of the flap or replace it Op. 5020A24 | |||
| 3 | HEATER RADIATOR CHECK | All OK | Problems met | Operation |
| Check the seal of the heater radiator Also make sure that the radiator is not obstruced. | Continue to Step 4 | Pipes badly connected | Restore the correct connection | |
| Radiator dirty or obstructed | Clean the radiator or replace it Op. 5020A50 | |||
| 4 | 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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