Multi Variable Air Conditioners
Heat Storage Module
11
6.1 Maintenance Before Use-season
(1) Check whether grounding wire is in good condition.
(2) Check whether wire connection is correct.
6.2 Maintenance After Use-season
If you won’t use the heat storage module for a long time, disconnect power please.
7 Malfunction Codes of IDU
Error Code
Content
Error Code
Content
Error
Code
Content
d4
Inlet Pipe
Temperature Sensor
Error
d6
Outlet Pipe
Temperature
Sensor Error
dA
Indoor Unit
Hardware Address
Error
C0
Communication
malfunction between
IDU, ODU and IDU’s
wired controller
C5
Alarm because project
code of IDU is
inconsistent
—
—
8 Troubleshooting
If your heat storage module is not working well, please check the following table first before
asking for service:
Phenomenon
Troubleshooting
Alarm because project
code of IDU is
inconsistent
Press SW1 and SW2 buttons on main board of heat storage module at the same
time for at least 5s and release. Project code is displayed on digital tube. Press
SW1(UP)button or SW2(DOWN)button to select the project code. Press SW3 to
make it confirmed.
NOTICE:
If heat storage module still fails to work normally after checking and handling as described
above, please stop using it immediately and contact local service center for assistance.
Summary of Contents for XRZ180L/A-T
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