Troubleshooting; Alarm Code Indication On Remote Control Switch (Pc-Arfh1E); Alarms For Indoor Units - Hitachi YUTAKI RWM-2R1E Installation & Operation Manual

TROUBLESHOOTING

12 TROUBLESHOOTING
?
N O T E
• (o): Option configurable from Unit controller. This alarm will be displayed if the system has been configured.
• o: Default. This alarm will be displayed in the Unit controller.
• –: No applicable.

12.1 ALARM CODE INDICATION ON REMOTE CONTROL SWITCH (PC-ARFH1E)

12.1.1 Alarms for Indoor units

Retry
Alarm YUTAKI YUTAKI
Stop
Code S/SC
Code
3 - o
11 - o
12 - o
13 – o
14 – o
15 - (o)
16 - (o)
17 - (o)
18 - (o)
19 - o
19 -
23 -
25 - (o)
40 - o
314 PMML0575 rev.2 - 03/2022
Alarm
indication
Alarm code
YUTAKI
Origin
S80 M
o o Communication
o o Indoor
o o Indoor
o o Indoor
o o Indoor
(o) (o) Indoor
(o) (o) Indoor
(o) (o) Indoor
(o) (o) Indoor
- - Indoor
o - Indoor
o - Indoor
(o) (o) Indoor
o o Indoor
Detail of Abnormality
Transmission Alarm (Not outdoor unit
detected)
Water inlet thermistor abnormally
(THMwi)
Water outlet thermistor abnormally
(THMwo)
Indoor Liquid Pipe Temp Thermistor
Abnormality (THMl)
Indoor Gas Pipe Temperature
Thermistor Abnormality (THMg)
Water Circuit 2 thermistor abnormally
(THMwo2)
Water DHW thermistor abnormally
(THMdhwt)
Auxiliary sensor 2 thermistor
abnormally (THMaux2)
Auxiliary sensor 1 thermistor
abnormally (THMaux1)
Water Plate HEX pipe thermistor
abnormally (THMwohp)
Suction R134a pipe thermistor
abnormally (THMs)
Discharge R134a pipe thermistor
abnormally (THMd)
Auxiliary sensor 3 thermistor
abnormally (THMaux3)
Incorrect LCD setting
Main Factors
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Loose, disconnected, broken or
short-circuited connector
Current LCD configuration does not
allow proper operation