Mark HCNI 533, Техническое руководство

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1. Remote maintenance Electrical Circuit Refrigerant Circuit
Possible causes of trouble
Power failure The main power tripped Loose connections Faulty transformer The voltage is too high or too low The remote control is powered off Broken remote control Dirty air filter Dirty condenser fins The seng temperature is higher/lower than the room’s (cooling/heang) The ambient temperature is too high/ low when the mode is cooling/heang Fan mode SILENCE funcon is acvated (oponal funcon) Frosng and defrosng frequently
Unit will not start
The power switch is on but fans will
not start
The temperature on the display board
cannot be set
Unit is on but the wind is not cold (hot)
Unit runs, but shortly stops
The unit starts up and stops frequently
Unit runs connuously but insufficient
cooling (heang)
Cool can not change to heat
Unit is noisy
Test method / remedy
Test voltage Close the power switch Inspect connectons - tighten Change the transformer Test voltage Replace the battery of the remote control Replace the remote control Clean or replace Clean Adjust the seng temperature Turn the AC later Adjust to cool mode Turn off SILENCE funcon. Turn the AC later