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Self-diagnostics table and detected contents
The "Alarm Display" shown in the table below expresses the alarm contents displayed when the wired
remote controller is connected. For how to handle the alarms, see installation instructions of indoor
units, "Service Manual", "Test Run Service Manual" or "Technical Data".
Communication error in the remote
controller circuit
Communication error either in the in/
outdoor operation line or the sub-bus of
the outdoor unit
Operation of indoor protection device
Operation of outdoor protection device
Error in the indoor thermistor
Error in the outdoor thermistor
Error in the indoor EEPROM
Error in the outdoor EEPROM
Error related to the compressor
Error in indoor settings
Error in outdoor settings
Error in the gas heat pump air
conditioner
Inconsistency in Cooling/Heating (Including an auto-temp
setting for a model without auto-temp settings)
Oil alarm (Same as operation of outdoor protection device)
Auto addressing in progress
(when it is performed with an infrared remote controller)
Test operation
Detected contents
E01–E03, E08–E14,
E17, E18
E04–E07, E15, E16,
E19–E31
P01, P09–P14
P02–P08, P15–P31
F01–F03, F10–F11
F04–F09, F12–F28
F29
F30, F31
H01–H31
L01–L03, L05–L09
L04, L10–L31
A01–A31
: OFF : ON (Illuminated) ◎: Blinking (0.5 seconds interval)
Alarm Display
OPERATION TIMER STANDBY
Indication lamp on the receiver
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◎
◎
◎
◎
◎
◎
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◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
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Blinking
Alternately
Alternately
Alternately
Alternately
Simultaneously
Simultaneously
Simultaneously
Simultaneously
Simultaneously
Alternately
Alternately
Sequentially
Simultaneously
9
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