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Possible causes of troubles
Indoor thermistor is either
open or short.
Outdoor thermistor is either
open or short.
Protective device for
compressor is activated.
: flashes
: OFF
Indoor coil temp. (E1 = TH2) cannot be detected.
Indoor coil temp. (E2 = TH3) cannot be detected.
Indoor room temperature cannot be detected.
Outdoor coil liquid temp. (C1 = TH0E) cannot be detected.
Outdoor coil gas temp. (C2 = TH0C) cannot be detected.
PC compressor motor is overloaded.
PC compressor motor is locked.
Compressor current detection circuit is defective.
Low-pressure protector is activated.
(Low pressure switch or low pressure prevention.)
Standard comp. contactor (Mg SW)is chattering.
29
F01
F02
F10
: Operation
F04
lamp
F06
: Timer lamp
F07
:H eat stand-
by lamp
H01
:Operation
H02
lamp
H03
: Timer lamp
H06
:H eat stand-
by lamp
H18
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