Mitsubishi Electric PURY-100TMU, Service Handbook

Page: 41 / 121

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(3) Indoor unit
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Normal operations
Trouble observed
Stop
Start
Breaker
turned on
Operation SW
turned on
1. Protection function
self-holding cancelled.
2. Indoor unit LEV fully
closed.
Remove controller
display extinguished
3-minute drain
pupm ON
FAN stop
Drain pump
ON
Error mode
Error stop
Error code blinks on
the remote controller
Indoor unit LEV
fully closed
Error code
blinks on the
outdoor
controller board
Operation mode
Heating
mode
Cooling
display
Cooling mode
Dry mode
Heating
display
Fan mode
Cooling/heating
automatic display
Cooling/heating
automatic mode
Fan display Dry display
Prohibition Prohibition
Heating
operations Cooling
operations
Prohibition Prohibition
Cooling/heating
automatic
operations
Dry
operation
Fan
operations
Prohibition “Remote
controller blinking”
Note :3 Note :3 Note :3
Note :1
Note :2
Note :1
Note : 1 Indoor unit LEV fully closed : Opening 41
Note : 2 Two error modes include indoor unit trouble, (BC controller trouble) and outdoor unit side trouble. In the case of indoor unit
trouble, error stop is observed in the concerned indoor unit only, and in the cases of (BC controller and) outdoor unit side
troubles, error stop is observed in all the indoor units connected.
Note : 3 “Prohibition” status is observed (when several indoor units are connected to one connection, of BC controller and) when
connection mode is different from indoor unit operation mode. (Operation mode display on the remote controller blinks on
and off, fan stops, and indoor unit LEV is fully closed.)
Error command
to outdoor unit