– 66 –
Re
s
et the power
su
pply
and then perform te
s
t r
u
n
matching to the
s
ea
s
on.
Open valve f
u
lly.
Check o
u
tdoor fan.
Tro
ub
le
→
Replace, retightening
Replace
s
en
s
or.
Repair tro
ub
le po
s
ition.
I
s
valve f
u
lly opened?
Are the o
u
tdoor fan appearance
and
s
crew tightening normal?
Doe
s
the o
u
tdoor fan
normally operate ?
Doe
s
indoor fan
normally operate?
Are indoor fan motor
and connector normal?
I
s
re
s
i
s
tance val
u
e
of TL
s
en
s
or correct?
(Mea
su
rement of re
s
i
s
tance val
u
e)
Are re
s
i
s
tance val
u
e
s
of indoor TC and TCJ
s
en
s
or
s
normal?
Replace
s
en
s
or.
Check the
s
ame item
s
a
s
[P22] tro
ub
le.
Check overcharge of refrigerant, clogging of cycle,
b
roken pipe, a
b
normal overload, etc.
Tro
ub
le
→
Correct tro
ub
le po
s
ition.
Check overcharge of refrigerant, clogging of cycle,
b
roken pipe, a
b
normal overload, etc.
Tro
ub
le
→
Correct tro
ub
le po
s
ition.
Eliminate interfering element.
Eliminate interfering element.
Replace indoor P.C.
b
oard.
Heating
s
ea
s
on
Heating operation
Cooling
s
ea
s
on
Cooling operation
Are the following item
s
for
o
u
tdoor
u
nit
s
correct?
• Clogging of heat exchanger
• Short-circ
u
it (Air flow)
Are the following item
s
for
o
u
tdoor
u
nit
s
correct?
• Clogging of filter
• Clogging of heat exchanger
• Short-circ
u
it (Air flow)
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
NO
NO
NO
NO
YES
NO
NO
Check
code
[P20]
Outdoor
LED display
<Display 1> <Display 2>
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[High pressure protective operation]
