Mitsubishi Electric MSZ-GF60VE Service Manual page 22
Indoor unit
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Also See for MSZ-GF60VE:
- Operating instructions manual (124 pages) ,
- Installation manual (49 pages) ,
- Installation manual (4 pages)
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10-3. INSTRUCTION OF TROUBLESHOOTING
Start
Indoor unit oper-
ates.
Outdoor unit
does not operate.
Outdoor unit
Outdoor unit
operates only
does not
in Test Run
operate even
operation.
in Test Run
operation.
Check room
Refer to "How
temperature
to check
thermistor.
inverter/com-
Refer to 10-7.
pressor".
"Test point
diagram and
voltage".
All lamps
Upper lamp
Flash on and
Flash on and
off at 0.5-sec-
off at 0.5-sec-
ond intervals
ond intervals
Cause:
Cause:
Indoor unit
Indoor/Outdoor
• The horizon-
unit
tal vane is
• Miswiring or
not installed
trouble of
correctly.
serial signal
Refer to
Refer to
10-6.
10-6. "How
"Check of in-
to check mis-
stallation of
wiring and
the horizon-
serial signal
tal vane".
error".
OBH634
Indoor unit operates.
Outdoor unit does
not operate normally.
Indoor unit
Unit does not
operates, when
operate nor-
EMERGENCY
mal operation
OPERATION
in COOL or
switch is pressed.
HEAT mode.
Refer to
Refer to 10-6.
"Check of R.V.
"Check of remote
coil".
controller and
indoor electronic
control P.C. board".
Upper lamp
Upper lamp
2-time fl ash
3-time fl ash
Cause:
Cause:
Indoor unit
Indoor unit
• Trouble
• Trouble of
of room
indoor fan
temperature
motor
/ indoor coil
thermistor
Check room
Refer to
temperature
10-6.
thermistor
"Check of
and indoor
indoor fan
coil thermis-
motor".
tor. Refer to
10-7."Test
point diagram
and voltage".
Indoor unit does
OPERATION INDICATOR
not receive the
lamp on the indoor unit is
signal from re-
fl ashing ON and OFF.
mote controller.
Indoor unit does
not operate, when
EMERGENCY
OPERATION
switch is pressed.
1. Check indoor/out-
door connecting wire.
(Check if the power is
supplied to the indoor
unit.)
2. Refer to 10-6.
"Check
of indoor P.C. board
and indoor fan motor".
Upper lamp
Upper lamp
4-time fl ash
5-time fl ash
Cause:
Cause:
Indoor unit
Outdoor unit
• Trouble
• Outdoor
of indoor
power
unit control
system
abnormality
system
Replace the
Refer to
indoor elec-
"How to
tronic control
check
P.C. board.
inverter/com-
pressor".
22
"Test Run operation" means the
operation within 30 minutes af-
ter EMERGENCY OPERATION
switch is pressed.
If blinking of OPERATION INDI-
CATOR lamp cannot be checked,
it can be checked with failure
mode recall function.
Refer to outdoor unit service manual.
Upper lamp
Upper lamp
6-time fl ash
7-time fl ash
Cause:
Cause:
Outdoor unit
Outdoor unit
• Trouble of
• Trouble of
outdoor con-
thermistor in
outdoor unit
trol system
Refer to
Replace the
"Check of
inverter P.C.
outdoor ther-
board or
mistors".
the outdoor
electronic
control P.C.
board.
Upper lamp
14-time fl ash
or more
Cause:
Outdoor unit
• Other ab-
normality
Check "Flow
chart of the
detailed
outdoor unit
failure mode
recall func-
tion."
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Troubleshooting
