Check Of Instantaneous Over-Current Protection Of Inverter Circuit; Check Of The Comp Top Olp And Discharge Gas Temperature Abnormal Rise - Samsung AQV12F2VE Service Manual

Troubleshooting
5-3-9 (M) Check of instantaneous over-current protection of inverter circuit.
Inverter instantaneous over- c u r rent protection mode is the mode to be actuated in order to
p revent the damage of elements from the peak current of inverter circuit elements.
In case that the inverter circuit instantaneous over- c u r rent protection mode actuates.
(condition of installation)
♦The ventilation is not good because the outdoor unit is installed wrong (the ambient tempera-
t u re is higher than 50 (°C) )
-> Reinstall the outdoor unit so that the good ventilation can be made.
♦In case that the operation is made with the cover bent of the outdoor unit.
-> Take out the cover.
♦If two outdoor units are operating face to face, (the bad ventilation is made)
-> Reinstall the outdoor unit for the good ventilation.
♦The air circulation is bad due to the attachment of falling leaves.
-> Take away the leaves for the good ventilation.
♦If the Refrigerant is overc h a rged.
-> Check the amount of Refrigerant.
(Unit defect)
♦If the comp is locked.
-> Replace the comp.
♦If the comp is operating without the revolution of fan motor.
-> Check the fan motor connector and replace the fan motor.
♦In case the parts of the control board is damaged.
-> Replace simultaneously the inverter control board and the power TR.
If only the inverter control board is replaced with the state the power TR. is damaged, the control board is damaged again.
(Same as for the vice versa of the above.)
5-3-10 (N) Check of the comp Top OLP and discharge gas temperature abnormal rise.
If the comp top temperature and the discharge gas temperature rises higher than a certain level,
it protects the circ u i t .
If the comp top OLP t e m p e r a t u re and the discharge gas temperature rises abnormally,
(Condition of installation)
♦The ventilation is not good because the outdoor unit is installed wrong (the ambient tempera-
t u re is higher than 50 (°C) )
-> Reinstall the outdoor unit so that the good ventilation can be made.
♦In case that the operation is made with the cover bent of the outdoor unit.
-> Take out the cover.
♦If two outdoor units are operating face to face, (the bad ventilation is made)
-> Reinstall the outdoor unit for the good ventilation.
♦The air circulation is bad due to the attachment of falling leaves
-> Take away the leaves for the good ventilation.
♦If the refrigerant is insufficient.
-> Fill up the amount of re f r i g e r a n t .
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