Hitachi YUTAKI RWM-2R1E Installation & Operation Manual page 330

TROUBLESHOOTING
Retry
Alarm YUTAKI YUTAKI
Stop
Code S/SC
Code
100 - o
101 -
102 P12 -
104 P06 -
104 P06 -
105 P11 -
106 -
129 -
130 -
132 -
134 -
135 -
151 -
152 -
153 -
154 -
155 -
156 -
157 -
316 PMML0575 rev.2 - 03/2022
YUTAKI
Origin
S80 M
o o Indoor-LCD
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
o - Indoor
Detail of Abnormality
Compressor protection
Activation of high pressure switch
Activation of protection control for
excessively high pressure
Activation of low control
Activation of low control
Excessively low pressure difference
Excessively high discharge gas
temperature
Failure of discharge gas pressure
sensor
Failure of suction gas pressure
sensor
Transmission error between Inverter
PCB and Main PCB
Abnormality of Power Supply Phase
Incorrect PCB Setting
Excessively low voltage or
excessively high voltage for the
inverter
Abnormal operation of the current
sensor
Activation of protection for inverter
instantaneous over current
Transistor module protection
activation
Increase in the inverter fin
temperature or abnormality
Inverter non operation
Inverter Communication abnormality
Main Factors
"Compressor failure. This alarm code
appears when the following alarms
02, 07, 08, 45, 47 occur three times
within 6 hours."
?
N O T E
This alarm is shown in the outdoor
unit with alarm code "EE".
Stop after P12 retry due to discharge
pressure Pd ≥ 2.78 MPa continued
for 10 seconds.
Stop after P06 retry due to Ps ≤ 0.15
MPa continued for 90 seconds
Immediate stop with Ps ≤ 0.1 MPa
Stop after P11 retry due to pressure
ratio ε < 1.8 continued for 3 minutes.
Td ≥ 120 ºC continued for 10
minutes, Td ≥ 140 ºC continued for 5
seconds
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Described in inverter abnormal stop
control
Reverse/Open Phase
Wrong DSW setting in the case of
Co041
Described in inverter abnormal stop
control
Described in inverter abnormal stop
control
Described in inverter abnormal stop
control
Described in inverter abnormal stop
control
Described in inverter abnormal stop
control
Described in inverter abnormal stop
control
Described in inverter abnormal stop
control