Gree GMV-1015WM/G-U, Руководство по обслуживанию

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Gree GMV6 DC Inverter VRF Units Service Manual
139
2.93 “Fd” Mode exchanger outlet pipe temperature sensor error
Error display:
main board of mode exchanger will display
Applicable mode: mode exchanger
Error judgment condition and method:
Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge
the range of AD value. If the sampling AD value exceeds upper limit and lower limit in 5 seconds
continuously, report the error
Possible reasons:
■ Poor contact between temperature sensor and terminal in main board interface
■ Temperature sensor is abnormal
■ Detecting circuit is abnormal
Troubleshooting:
Yes
“Fd” mode exchange box
outlet pipe temperature
sensor error
If it is loosened or there are
foreign objects, retighten it
after treatment
Detecting circuit might
be abnormal
Yes
Replace the main control
board of mode exchange box
No
Replace the
temperature sensor directly, is the
error disappeared?
Is the terminal between main
board and mode exchange box outlet
pipe temperature sensor loose
or any foreign objects inside?
No
2.94
“
Fn” Mode exchanger inlet pipe temperature sensor error
Error display: mode exchanger main board will display
Applicable mode: all mode exchangers
Error judgment condition and method:
Sample the AD value of temperature sensor through temperature sensor detecting circuit and judge
the range of AD value. If the sampling AD value exceeds upper limit and lower limit in 5 seconds
continuously, report the error
Possible reasons:
■ Poor contact between inlet pipe temperature sensor and terminal in main board interface
■ Inlet pipe temperature sensor is abnormal
■ Detecting circuit is abnormal
Troubleshooting: