Troubleshooting by Remote Controller
Si33-105
154
Troubleshooting R407C PLUS Series Heat Recovery System
Malfunction
code
Operation
lamp
Inspection
display
Unit No.
Malfunction contents
Page
Refered
Indoor
Unit
A0
9
9
9
Error of external protection device
A1
9
9
9
PC board defect
A1
8
7
9
PC board defect
A3
9
9
9
Malfunction of drain level control system (33H)
A6
9
9
9
Fan motor lock
A7
8
7
9
Malfunction of swing flap motor (M1S)
A9
9
9
9
Malfunction of moving part of electronic expansion
valve (Y1E)
AF
8
7
9
Drain level above limit
AH
9
9
9
Malfunction of air filter maintenance
—
AJ
9
9
9
Malfunction of capacity determination device
C4
9
9
9
Malfunction of thermistor (R2T) for liquid pipe (loose
connection, disconnection, short circuit, failure)
C5
9
9
9
Malfunction of thermistor (R3T) for gas pipes (loose
connection, disconnection, short circuit, failure)
C9
9
9
9
Malfunction of thermistor (R1T) for air inlet (loose
connection, disconnection, short circuit, failure)
CJ
8
8
8
Malfunction of thermostat sensor in remote controller
Outdoor
Unit
E0
9
9
9
Actuation of safety device
E1
9
9
9
PC board defect
E1
8
7
9
PC board defect
E3
9
9
9
Actuation of high pressure switch
E4
9
9
9
Actuation of low pressure sensor
E9
9
9
9
Malfunction of moving part of electronic expansion
valve (Y1E)
F3
9
9
9
Abnormal discharge pipe temperature
H3
8
7
9
High pressure switch failure
—
H4
9
9
9
Actuation of low pressure switch
—
H9
9
9
9
Malfunction of thermistor (R1T) for outdoor air (loose
connection, disconnection, short circuit, failure)
H9
8
7
9
Malfunction of thermistor (R1T) for outdoor air (loose
connection, disconnection, short circuit, failure)
J1
9
9
9
Malfunction of pressure sensor
—
J3
9
9
9
Malfunction of discharge pipe thermistor (R3T) (loose
connection, disconnection, short circuit, failure)
J3
8
7
9
Malfunction of discharge pipe thermistor (R3T) (loose
connection, disconnection, short circuit, failure)
J5
9
9
9
Malfunction of thermistor (R4T) for suction pipe
(loose connection, disconnection, short circuit,
failure)
Summary of Contents for R407C PLUS
Page 1: ...System R407C PLUS Series Heat Recovery System Si33 105 Service Manual ...
Page 11: ...Introduction Si33 105 x ...
Page 41: ...Specifications Si33 105 30 Specifications R407C PLUS Series Heat Recovery System ...
Page 147: ...Test Operation Si33 105 136 Test Operation R407C PLUS Series Heat Recovery System ...
Page 263: ...Si33 105 iv Index ...