Tadiran Telecom SMVH09A-2A1B1NA Service Manual page 36

Name of malfunction and
No.
status
12 4 way valve malfunction
Outdoor ambient
13 temperature abnormal
protection
14 Compressor stalling
15 Start up failure
Compressor phase current
16
peak protection
Compressor phase current
17
RMS protection
18 IPM protection
19 IPM overheat protection
Error
Way of display
Code
By remote control
procedure within
compressor stop 200
E7
sec or direcly after
compressor stop 200
sec
By remote conrol
E8
procedure only
By remote control
procedure within
compressor stop 200
H0
sec or direcly after
compressor stop 200
sec
By remote control
procedure within
compressor stop 200
H1
sec or direcly after
compressor stop 200
sec
By remote control
procedure within
compressor stop 200
H2
sec or direcly after
compressor stop 200
sec
By remote control
procedure within
compressor stop 200
H3
sec or direcly after
compressor stop 200
sec
By remote control
procedure within
compressor stop 200
H4
sec or direcly after
compressor stop 200
sec
By remote control
procedure within
compressor stop 200
H5
sec or direcly after
compressor stop 200
sec
Aftersales
"1.Supply voltage is unstable
2.mainboard and 4-Way
valve unconnected
3.4-Way valve is broken"
"1.outdoor environment
temperature is high or low
2.outdoor environment
temperature sensor is broken"
See flow chart 4
See flow chart 5
See flow chart 6
See flow chart 7
See flow chart 8
1. The radiator ventilation is not
normal
2. IPM module thermal paste
dry solid or screw is loose
3. main board is broken
Troubleshooting
Operation
"1.check the voltage
of power supply
2.check the
connecting of
mainboard and 4-way
valve
3.change the 4-Way
valve"
"1.check the
outdoor environment
temperature is in
normal range
2.change the temp
sensor"
See flow chart 4
See flow chart 5
See flow chart 6
See flow chart 7
See flow chart 8
"1.check the radiator
ventilation status
2.check the status of
IPM module thermal
paste dry solid and
screw
3.change the
mainboard"
33