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9-3. Outline of the determination diagram
The first determination of whether a defective part is in the hydro unit or the outdoor unit can be performed by the
following method.
9-3-1. Procedure of defect diagnosis
In the case of a defect, please apply the following procedure in order to find the defective part.
9-3-2. How to determine from the check code on the remote
controller
If the defect is limited by the check code displayed on the remote controller, please repair the defect based on the
table on the next page.
The check codes are separated into two groups: software and hardware errors.
Since a hardware error cannot be cancelled without a part replacement etc., please perform a repair.
If its abnormality is determined, the abnormality is noticed by indicating the check code on the remote controller
check code display part while sounding off a buzzer.
9-3-3. How to cancel a check code on the remote controller
Press [
] or [
] button (on the operation side) to clear the check code.
Although the above procedure cancels the check code, the hardware error will be displayed again until the
hardware repair is completed.
Defect
Yes
Yes
Yes
No
No
No
Confirm the check
code on the remote
controller display
Check code
A01-A13
Check code
L07-L16
Check code
FXX
Defect in Hydro unit
Abnormality in the
communication or setting
system
Abnormality in the water
heat exchange or outdoor
unit sensor system
Abnormality in the outdoor unit or hot-water
tank unit
ZONE1
ZONE2
HOT WATER
HEAT/COOL
HOT WATER
MON
Check code display part
Summary of Contents for HWS-P1105HR-E
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