Alarm Code - York IDH072B21S Series Installation And Maintenance Manual

Inverter-driven multi-split system heat pump air conditioners, ducted high static
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9.3

Alarm Code

Code
Category
No.
Activation of a protection device
01
Indoor Unit
(Float switch)
Activation of protection device;
02
Outdoor Unit
(Except for Alarm Code: 41, 42)
Communication failure between
03
Communication
indoor and outdoor units
04-09 Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for outdoor units.)
11
Inlet Air Thermistor failure
12
Outlet Air Thermistor failure
Sensor on
Indoor Unit
13
Freeze Protection Thermistor failure
14
Gas Piping Thermistor failure
19
Fan Motor
Problem with Indoor Fan
20-29 Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for outdoor units.)
Incorrect capacity setting for indoor
31
and outdoor units
Incorrect setting of other indoor unit
32
number
System
35
Incorrect setting of indoor
36
Incorrect indoor unit combination
38-59 Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for the outdoor unit.)
b0
Incorrect setting for unit capacity
Incorrect setting of unit and
b1
System
refrigerant cycle number
Incorrect setting of indoor unit
b5
number for H-LINK type
EE
Compressor
Compressor protection alarm
● When the RUN indicator flashes every four seconds, there is a communication failure between the indoor
unit and the wired controller (loose connector, disconnected or incorrect wiring, or a severed connection).
● The indication of the alarm code "EE" means serious abnormality to burn out the compressor.
Refer to the "Installation and Maintenance Manual" for the indoor/outdoor unit connections.
Do NOT operate the air conditioning just to run checks on electrical wiring until preparations for the Test Run
phase is completed.
All the installation work of the air conditioning is completed.
Handover this information to the building owner and request to maintain all the equipment manuals
and warranty.
Refrigerant Leak Check
Conduct a periodic refrigerant leak check to maintain product performance and secure storage of refrigerant
(Fluorocarbons). After completing installation, record the following results into this manual:
1. Results of a leak test all piping and connections
2. Total refrigerant charge volume dispensed (including a trim charge added following the installation)
3. Result of the refrigerant leak check
Then hand it over to users and ask them to retain for reference.
All periodic service and maintenance procedures must be conducted only by authorized and trained personnel.
P01432Q-rev.1
Alarm (Troubleshooting) Code Table
Nature of Problem
NOTICE
Likely Cause
Activation of the float switch; (High water level present in
the condensate pan.) A problem exists in the piping.
High Pressure Cut; (R410A: 601 psi (4.15MPa)), fan
motor lockup during the outdoor unit cooling operation.
Incorrect wiring, loose terminals, disconnected wiring or a
blown fuse.
Loosely connected, disconnected, or a severed
connection.
Fan motor lockup, fan motor protection control device for
indoor unit activated.
Incorrect capacity code setting for combination, excessive
or insufficient total indoor unit capacity code.
Problem with a different Indoor Unit in the same refrigerant
cycle; (Failure at the power supply, defective PCB).
Indoor unit number duplicated in same refrigerant group.
Indoor unit is designed for other refrigerant; (R22 or
R407C).
Incorrect setting for unit capacity
Unit number or refrigerant cycle > 64
Interconnected indoor units are not supporting
H-LINK II > 17
This alarm code displays when the alarms such as
damage to the compressor occur three times within a six
hour period.
37

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