16 May 105

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

Solution: NORMAL PROTECTION

Cause: LIMITING/REDUCING FREQUENCY FOR OUTDOOR UNIT AC CURRENT PROTECTION

Remarks:

DESCRIPTION:

WHENEVER THE OUTDOOR UNIT RUNNING CURRENT IS TOO HIGH.

WHEN THE RUNNING CURRENT REACHES TO THE POINT WHERE FREQUENCY LIMITATION/REDUCTION IS NEEDED, IT WILL ACIVATE THE FN PROTECTION.

REPAIR:

1) THIS IS A NORMAL PROTECTION