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7. Self-diagnosis function table (outdoor unit)
System A (activation of engine system operation devices)
Outdoor
unit control
board
display
Contents
Outdoor
unit control
board
display
Contents
Operation is normal
CT trouble (starter current detection failure)
Engine oil pressure trouble
Cooling water temp. low
Engine oil trouble
Cooling water temp. high
Engine speed too high
Cooling water level trouble
Engine speed too low
Cooling water pump overload
Ignition power trouble
Crankshaft angle sensor trouble
Engine start failure
Camshaft angle sensor trouble
Fuel gas valve failure
Clutch trouble (handled as warning)
Engine stall
Mis
fi
re
Exhaust gas temp. high
Catalyst temp. trouble
Engine oil level trouble
Generator trouble
Engine oil pressure switch failure
Converter trouble
Start power output short circuit
Fuel gas pressure low
Starter locked
System E (communications system trouble)
Outdoor
unit control
board
display
Contents
Outdoor
unit control
board
display
Contents
Remote controller receiving failure
Automatic address setting is in progress; auto-
matic address setting start is prohibited
Remote controller sending failure
Indoor unit failed to send signal to remote con-
troller
Indoor unit failed to receive signal from remote
controller (central)
Automatic address setting warning (too few
units)
Indoor unit failed to receive signal from outdoor
unit
Automatic address setting warning (too many
units)
Indoor unit failed to send signal to outdoor unit
Group control cable communications failure
Outdoor unit failed to receive signal from indoor
unit
Automatic address indoor unit does not exist
Outdoor unit failed to send signal to indoor unit
PCB (Control Board) trouble
Duplicate indoor unit address
Thermistor trouble
Multiple units set as master remote controller
Communications failure between outdoor units
Communications failure with DC fan driver
Discrepancy in the number of outdoor units
Indoor board failed to receive signal from signal
output board
Unit internal communications failure
System F (trouble with sensors, memory, or other parts)
Outdoor
unit control
board
display
Contents
Outdoor
unit control
board
display
Contents
Indoor heat exchange inlet temp. sensor trouble
Compressor inlet/outlet pressure sensor trouble
Indoor heat exchanger intermediate temp.
sensor trouble (Water heat exchanger freezing
sensor trouble)
Optical sensor trouble
Exhaust gas temp. sensor trouble
Indoor heat exchanger outlet temp. sensor
trouble
Clutch coil temp. sensor trouble
Compressor outlet temp. sensor trouble
Clutch coil 2 temp. sensor trouble
Outdoor heat exchanger inlet temp. sensor
trouble
Coolant heat exchanger for heating inlet
temperature sensor failure
Outdoor heat exchanger outlet temp. sensor
trouble
Coolant heat exchanger for heating outlet
temperature sensor failure
Outdoor temp. sensor trouble
Indoor nonvolatile memory (EEPROM) trouble
Indoor unit intake air temp. sensor trouble
Clock function (RTC) trouble
Indoor unit discharge air temp. sensor trouble
Outdoor nonvolatile memory (EEPROM) trouble
Compressor inlet temp. sensor trouble
Cooling water temp. sensor trouble
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2012/05/22 11:26:04
2012/05/22 11:26:04