Sanyo CH4242 User Manual
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12-10. The Main Alarms of Power Supply Troubles
Cause
Remote controller display
Outdoor protection
Power supply voltage is abnormal.
P2
(More than 260 V or less than 160 V between L and N phase)
Negative phase or defective phase
P5
Compressor contactor (Mg SW) is chattering.
H18
12-9. The Main Alarms of Unit Troubles
Trouble detected
Remote controller display
Indoor protection
Fan motor protection thermostat
P1
Outdoor protection
Fan motor protection thermostat
P2
Compressor protection thermostat
Abnormal discharge temp.
P3
High pressure switch
P4
Indoor protection
Float switch
P10
Indoor sensor
Open/or damaged
F1-F3
Outdoor sensor
Open/or damaged
F4-F9
Compressor
Compressor motor is overloaded.
H1
protection
Compressor motor is locked.
H2
Compressor current detection circuit is abnormal.
H3
Low pressure protector is activated.
H6
* Ref: Alarm “P9” is not generated if the remote controller is set at test run.
12-8. The Main Alarms of Mis-wiring & Mis-setting
Remote
controller
display
Nothing
displayed
• In case of individual remote control
• Remote controller not properly connected.
• Power supply not ON.
• Remote controller not properly connected.
• Wiring connection fault of
indoor/outdoor units
• Power supply of outdoor unit not ON.
• Combination of indoor/outdoor units is wrong.
* Power supply of some indoor unit is not ON.
•Improper wiring connections of ceiling panel
E1
E4
—
—
P9
(*)
E9
• 2 main remote controllers set.
E6
In case of group control In case of multiple remote control
• Wiring connection fault of some indoor/outdoor units
inside the group
Cause