R410A Full DC Inverter Split Duct Type Technical Manual MCAC-UTSM-201503
41
E5: Voltage error
Note:
1. How to check whether the compressor is short circuit
①
:
The normal resistance value of inverter compressor among U V W is 0.7~1.5
Ω, and infinity to earth. If the
resistance value is out of the range, the compressor is abnormal.
2. How to check whether the fan motor is short circuit
②
:
The normal value of DC fan motor coil among U V W is less than 10
Ω, and the value of AC fan motor coil
is from a few ohm to hundreds of ohm for different fan motor model. If the measured value is 0
Ω, the fan
motor is short circuit.
3. How to check whether the inverter module is output error
③
:
Dial the multimeter to diode file, black pen on P and red pen respectively on U,V,W, if the multimeter
displays 0.4~0.7 V, it is normal; Red pen on N, black pen respectively on U,V,W, if the multimeter displays
0.4~0.7 V, it is normal. Satisfying the above two conditions at the same time indicates that the inverter
module has no problem.
E5: Voltage error
Voltage of power supply is too high or
too low (the normal voltage between A
and N (B and N, C and N) should be
163V~268V)
Provide normal power supply
Check the high voltage circuit. Whether
the compressor is short circuit
①
, fan
motor is short circuit
②
, inverter module
is output error
③
, etc.
Replace the inverter module
or repair related parts
No
No
Yes
Yes
Outdoor main control
board is damaged
Replace the outdoor
main control board
Содержание HIGH POWER HTWC200IX41T3
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