Gree KW09HQ3D6D Series, Руководство по обслуживанию

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45
Installation and Maintenance
Service Manual
NO.
Malfunction
Name
Display Method of Indoor Unit
A/C status Possible Causes Dual-8
Code
Display
Indicator Display (during
blinking, ON 0.5s and OFF
0.5s)
Operation
Indicator Cool
Indicator Heating
Indicator
26
27
Overcurrent
protection of
phase
current for
compressor
P5
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.
Refer to the malfunction
analysis (IPM protection, loss
of synchronism protection and
overcurrent protection of phase
current for compressor.
28
Charging
malfunction
of capacitor
PU
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
Refer to the part three—charging
malfunction analysis of capacitor
29
Malfunction
of module
temperature
sensor circuit
P7
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
Replace outdoor control panel AP1
30
Module high
temperature
protection
P8
During cooling operation,
compressor will stop while
indoor fan will operate;
During heating operation, the
complete unit will stop
After the complete unit is de-
energized for 20mins, check
whether the thermal grease on IPM
Module of outdoor control panel
radiator is inserted tightly. If its no
use, please replace control panel
AP1.
31
Decrease
frequency
due to high
temperature
resistant
during
heating
operation
H0
All loads operate normally,
while
operation frequency for
compressor is decreased
Refer to the malfunction analysis
(overload, high temperature
resistant)
32
33
Overload
protection for
compressor
H3
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
operation.
1. Wiring terminal OVC-COMP
is loosened. In normal state, the
resistance for this terminal should
be less than 1ohm.
2.Refer to the malfunction analysis (
discharge protection, overload)
JF
Loads operate normally,
while the unit can’t be
normally controlled by APP.
1. Main board of indoor unit is
damaged;
2. Detection board is damaged;
3. The connection between
indoor unit and detection board
is not good;
Malfunction
of detecting
plate(WIFI )
The four-way
valve is
abnormal
U7
If this malfunction occurs
during
heating operation, the complete
unit will stop operation. 1.Supply voltage is lower than
AC175V;
2.Wiring terminal 4V is loosened or
broken;
3.4V is damaged, please replace
4V.