PROBLEM
Error display on control
panel
E1: Temperature sensor error for the upper zone.
E2: Temperature sensor error for the lower zone.
E3: DC electric fan error for the upper zone.
E4: DC electric fan error for the lower zone.
If any of the above error codes occur, please contact the
Customer Service Department for further assistance. Do not
attempt to repair the unit yourself.
ENG - 15
POSSIBLE CAUSE
15