6.6. Diagnostics of malfunctions of system of heating
REASON
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ELIMINATION METHOD
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The heating fan does not rotate
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The fan electric motor safety lock fused. | Check a fan safety lock, in case of need – replace. |
The fan switch is faulty. | Check whether tension on the fan electric motor moves. If is not present, remove and check the switch. |
The electric motor is faulty. | Replace the fan electric motor. |
The fan of heating does not rotate at one of speed steps
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Defective additional resistance | Replace additional resistance. |
Too heating low power
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Too low level of cooling liquid | Check the level of cooling liquid, in case of need – add cooling liquid. |
The heating valve does not open | Check the electromagnetic valve in system of access of water, make passable. |
The heat exchanger is untight or littered | Replace the heat exchanger (work for repair shop). |
Heated air has a sweetish smell, at inclusion of heating glasses mist over
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Leakage of the heat exchanger | Check the cooling system for tightness. Replace the heat exchanger (work for repair shop). |
Noise during the operation of the fan of heating
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Pollution of the fan | Remove the fan, clean the air channel. |
Imbalance of a krylchatka of the fan, malfunction of the bearing | Remove the electric motor of the fan and check ease of its rotation. |