– 58 –
I
s
CN603 connection normal?
I
s
re
s
i
s
tance val
u
e of TD
s
en
s
or normal?
Correct connector.
Sen
s
or tro
ub
le
→
Replace
Replace o
u
tdoor P.C.
b
oard
(MCC-1599).
Correct connector.
Sen
s
or tro
ub
le
→
Replace
Replace o
u
tdoor P.C.
b
oard
(MCC-1599).
Correct connector.
Replace o
u
tdoor P.C.
b
oard
(MCC-1599).
YES
NO
I
s
CN601 connection normal?
I
s
re
s
i
s
tance val
u
e of TE
s
en
s
or normal?
YES
NO
I
s
CN604 connection normal?
I
s
re
s
i
s
tance val
u
e of TL
s
en
s
or normal?
YES
NO
Check
code
[F04]
[F06]
[F07]
Outdoor
LED display
<Display 1> <Display 2>
<Display 1> <Display 2>
<Display 1> <Display 2>
<Display 1> <Display 2>
<Display 1> <Display 2>
<Display 1> <Display 2>
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Discharge temp. sensor (TD) trouble]
• There i
s
a po
ss
i
b
ility that it i
s
one of the following tro
ub
le.
Confirm LED on o
u
tdoor P.C.
b
oard to j
u
dge which tro
ub
le it i
s
.
Heat exchanger temp.
s
en
s
or (TE) tro
ub
le, Heat exchanger temp.
s
en
s
or (TL) tro
ub
le,
S
u
ction temp.
s
en
s
or (TS) tro
ub
le, Mi
ss
-wiring of heat exchanger
s
en
s
or (TE, TS)
Heat exchanger temp. sensor (TE) trouble]
[Heat exchanger temp. sensor (TL) trouble]
→
Refer to
[F07]
col
u
mn.
[Suction temp. sensor (TS) trouble]
→
Refer to
[F12]
col
u
mn.
[Miss-wiring of heat exchanger sensor (TE, TS)]
→
Refer to
[F15]
col
u
mn.
[Heat exchanger temp. sensor (TL) trouble]
