10.3.3.14 Lack phase failure of outdoor DC fan motor(EC72)
Check the fan three-phase
output for obvious open
circuit
Power off,then restart the unit
2 minutes later.Is it still
displaying the error code
The unit operates
normally
Check the wiring of fan
motor.Are all the connections
good?
Correct the connections
Check whether the three-
phase resistance of the fan is
symmetrical
Replace the fan motor
Yes
Yes
Yes
No
No
No
Replace the main PCB
No
Trobule is solved
Yes
Service manual
MUEX-
H11 series
63
Содержание H11 Series
Страница 1: ...Service manual www mundoclima com CL21400 CL21407 MULTI INVERTER SERIE H11 R32...
Страница 11: ...10 MUEX 21 H11 3 MUEX 27 H11 3 Service manual MUEX H11 series...
Страница 12: ...11 MUEX 27 H11 3 Service manual MUEX H11 series...
Страница 13: ...12 MUEX 36 H11 4 Service manual MUEX H11 series...
Страница 14: ...13 MUEX 42 H11 5 Service manual MUEX H11 series...
Страница 41: ...EC 50 Open or short circuit of outdoor unit temperature sensor T3 T4 T5 Service manual MUEX H11 series 40...
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