16 May 71
Symptom: DXF-19, DXH-19, MGC-19 – ERROR CODE F0
Solution: MULTIPLE SOLUTIONS
Cause: OVERLOAD CURRENT PROTECTION
Remarks:
DESCRIPTION:
AN ABNORMAL CURRENT INCREASE IS DETECTED BY CHECKING THE SPECIFIED CURRENT DETECTION CIRCUIT.
REPAIR:
1) CHECK THE POWER SUPPLY:
IS IT FUNCTIONING PROPERLY?
NO = STOP THE UNIT
YES = CHECK 2)
2) CHECK SYSTEM FOR BLOCKAGES:
DO ANY EXIST?
YES = CLEAR THE BLOCKAGES
NO = CHECK 3)
3) CHECK THE COMPRESSOR RESISTANCE VALUES:
ARE THEY WITHIN ACCEPTABLE PARAMETERS?
NO = REPLACE THE COMPRESSOR
YES = CHECK 4)
4) CHECK THE CONNECTIONS AND WIRES:
ARE THEY PROPERLY CONNECTED?
NO = ENSURE PROPER CONNECTIONS OR REPLACE THE WIRES
YES = CHECK 5)
5) CHECK THE REACTOR:
IS IT FUNCTIONING PROPERLY?
NO = REPLACE THE OUTDOOR PCB
YES = REPLACE THE OUTDOOR UNIT
YES = CHECK 2)
NO = CHECK 3)
YES = CHECK 4)
YES = CHECK 5)
YES = REPLACE THE OUTDOOR UNIT