16 May 84

Symptom: MGTC-20, DXTC-20, DXTH-20 – ERROR CODE P6

Solution: MULTIPLE SOLUTIONS

Cause: OVERHEATING PROTECTION ON COOLING MODE

Remarks:

DESCRIPTION:

ON COOLING OR DRY MODE, WHEN THE OUTDOOR UNIT CONDENSER COIL TEMPERATURE IS OPTò62?, THE MCU WILL SWITCH OFF THE OUTDOOR UNIT AND THE P6 ERROR CODE WILL BE DISPLAYED.

REPAIR:

1) CHECK IF THE OUTDOOR UNIT FAN MOTOR WORKS NORMALLY

2) CHECK IF THE OUTDOOR UNIT COIL TEMPERATURE SENSOR IS NORMAL

3) CHECK IF THE OUTDOOR UNIT PCB IS OK OR NOT