6.6. Diagnostics of malfunctions of system of heating
The heating fan does not rotate
|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
|Defective additional resistance
|Replace additional resistance.
Too heating low power
|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
|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
|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.