51
Installation and Maintenance
Service Manual
19
Overcurrent
protection of
phase current
P5
□
☆
□
□
During cooling and
drying operation,
compressor and
outdoor fan stop while
indoor fan operates.
During heating
operation, all loads
stop.
See 9.3 (diagnosis
of IPM protection,
desynchronizing
malfunction,
overcurrent protection
of phase current of
compressor)
Refer to
maintenance
flowchart
20
Defrosting
(ON 10s and
OFF 0.5)
Normal function
21
Overload
protection of
compressor
H3
□
☆
☆
□
During cooling and
drying operation,
compressor and
outdoor fan stop while
indoor fan operates.
During heating
operation, all loads
stop.
1:Wiring terminal
OVC-COMP is
loose (Under normal
circumstances, the
resistance between
both ends of this
terminal should be
less than 1Ω.)
1. After de-
energization,
insert OVC-
COMP terminal
tightly;
2: See 9.3 (diagnosis
of overload and
discharge protection)
2. Refer to
maintenance
flowchart
22
IPM
protection
H5
□
☆
□
■
During cooling and
drying operation,
compressor and
outdoor fan stop while
indoor fan operates.
During heating
operation, all loads
stop.
See 9.3 (diagnosis
of IPM protection,
desynchronizing
malfunction,
overcurrent protection
of phase current of
compressor)
Refer to
maintenance
flowchart
