8.4. Search and elimination of malfunctions
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Malfunction
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Probable causes
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Elimination method
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| The engine is not started at a temperature below 50 °C | Unreliable connection in the socket or damage of a wire | Repair or replace an electrical wiring |
| Damage of the sensor of temperature of cooling liquid | Replace the sensor | |
| Damage of a glow plug | Replace a glow plug | |
| Damage of the control unit of system of preliminary heating | Check the control unit and, if necessary, replace it | |
| After the first flash the engine stops or unstably idles at a temperature below 50 °C | Unreliable connection in the socket or damage of a wire | Repair or replace an electrical wiring |
| Damage of a glow plug | Replace a glow plug | |
| Damage of the relay of candles of an incandescence | Replace the relay of candles of an incandescence | |
| Damage of the control unit of system of preliminary heating | Check the control unit and, if necessary, replace it | |
| The control lamp of yellow color does not burn | The lamp fused | Replace a lamp |
| Unreliable connection in the socket or damage of a wire | Repair or replace an electrical wiring | |
| Short circuit of an electrical wiring | Repair or replace an electrical wiring | |
| Damage of the control unit of system of preliminary heating | Check the control unit and, if necessary, replace it |