Hitachi YUTAKI S Serie Manuel D'installation page 38

Alarm Retry Stop
Origin
Code Code
11 - Indoor Water inlet thermistor abnormally (THM
12 - Indoor Water outlet thermistor abnormally (THM
Indoor Liquid Pipe Temp Thermistor Abnormality
13 - Indoor
(THM
Indoor Gas Pipe Temp. Thermistor Abnormality
14 - Indoor
(THM
15 - Indoor Water outlet C2 thermistor abnormally (THM
16 - Indoor Water DHWT thermistor abnormally (THM
17 - Indoor Swimming pool thermistor abnormally (THM
18 - Indoor Water outlet boiler thermistor abnormally (THM
20 - Outdoor Compressor-Top Temp Thermistor Abnormality
21 - Indoor 2nd ambient thermistor abnormally (THM
22 - Outdoor Outdoor Temp Thermistor Abnormality
Outdoor Outdoor Heat Exchanger Liquid Pipe Thermistor
24 -
Abnormality
31 - Outdoor Indoor/Outdoor Combination Setting Error
35 - Outdoor Indoor Unit Number Setting Error
38 - Outdoor Outdoor Protection Detection Circuit Abnormality
41 - Outdoor Cooling Overload
42 - Outdoor Heating Overload
47 15 Outdoor Suction Pressure Decrease Prevention Activated
51 17 Outdoor Inverter Current Sensor Abnormality
48 17 Outdoor Overload Operation Protection Activation
53 17 Outdoor Inverter Module Error
54 17 Outdoor Inverter Fin Temp. Abnormality
55 18 Outdoor Inverter Non-Operation
59 - Outdoor Inverter Fin Temp Thermistor Abnormality
b1 - Outdoor Error in Address/Refrigerant System Setting
EE - Outdoor Compressor Factor Alarm
70 P-70 Indoor Hydraulic alarm
71 - Indoor Water Pump Feedback
72 - Indoor Thermostat Heater Alarm
Mixing over-temperature limit protection for Mixed
73 - Indoor
circuit.
74 P-74 Indoor Unit over-temperature limit protection
Freeze Protection by Cold water inlet, outlet
75 - Indoor
temperature detection
Freeze Protection Stop by indoor liquid
76 - Indoor
temperature thermistor
77 - Indoor Opentherm Communication failure
78 - Indoor RF Communication failure
Indoor
79 - Unit Capacity setting Error
-outdoor
Indoor-
80 - LCD H-link transmission error
LCD
81 - Indoor Incorrect PCB operation
40
PMML0215A rev.1 - 02/2012
Detail of Abnormality
)
L
)
G
) Loose, disconnected, broken or short-circuited connector
WI
) Loose, disconnected, broken or short-circuited connector
WO
Loose, disconnected, broken or short-circuited connector
Loose, disconnected, broken or short-circuited connector
) Loose, disconnected, broken or short-circuited connector
WO2
) Loose, disconnected, broken or short-circuited connector
DHWT
) Loose, disconnected, broken or short-circuited connector
SWP
) Loose, disconnected, broken or short-circuited connector
WO3
Loose, disconnected, broken or short-circuited connector
) Loose, disconnected, broken or short-circuited connector
AMB2
Loose, disconnected, broken or short-circuited connector
Loose, disconnected, broken or short-circuited connector
Outdoor/Indoor Unit capacity setting error, Indoor total capacity
excessively large/small
Indoor units with the same number exist in a refrigerant piping
system
Outdoor PCB abnormality, Error in wiring to outdoor PCB
Outdoor heat exchanger clogging/short circuit, Broken outdoor
fan motor
Outdoor heat exchanger clogging/short circuit, Expansion valve
close-locked
Shortage or leakage of refrigerant, piping clogging, Expansion
valve close-locked, Fan motor locked
Error in CT wiring, Outdoor PCB abnormality, Inverter PCB
abnormality
Cycle abnormality, Inverter PCB abnormality, DM abnormality,
Heat exchanger clogging, etc.
Compressor, ISPM abnormality, Heat exchanger clogging, etc.
Fin thermistor abnormality, Heat exchanger clogging, Fan motor
abnormality
Inverter not operating or broken
Loose, disconnected, broken or short-circuited connector
Address/refrigerant system setting over 64
Alarm to notify damage to compressor occurs 3 times within 6
hours
Water pressure or water flow is not detected in the hydraulic cycle
High temperature is detected in Electric Heater T>75ºC
Circuit 2 supply temperature > Target temperature + offset
No Opentherm communication for a continuous period of 1 minute.
There is no communication for 1 hour with one or two RF
receivers which are bound to the RF-Bridge.
There is no concordance between indoor outdoor unit capacity
No H-link communication for a continuous period of 1 minute
between Indoor and LCD User control by connection wiring
(breaking, wiring error, etc.)
TROUBLESHOOTING
Main Factors