Tr
oubleshooting
Page 87
5.3 E1 (Indoor and outdoor unit communication error)
Description
: The indoor unit has not received feedback from the outdoor unit for 150 seconds, four consecutive times.
Recommended parts to prepare:
• Indoor PCB
• Outdoor PCB
• Reactor
Troubleshooting and repair:
Power off, then restart the unit after 2 minutes.
Does a problem remain?
The unit is operating normally
NO
Measure Vs. (Vs is the voltage between S and N of
outdoor unit. Red pan-S, Black pan-N)
YES
Is the voltage moving
alternately between Positive and
negative?
Check the outdoor wiring connection.
Is it normal?
Check the reactor.
YES
Is it normal?
Replace the outdoor PCB.
Power on.
YES
Is the error
resolved?
Replace the indoor PCB.
NO
Replace the
reactor
NO
Check the indoor wiring
connections
Is it normal?
Replace the indoor PCB.
Power on.
YES
Is the error resolved?
Replace the outdoor PCB.
NO
The voltage moves alternately with
positive value.
NO
The voltage is a
certain value
NO
Содержание MISSION2 3D INVERTER Series
Страница 1: ...MISSION2 3D INVERTER SERIES SM_MISSION2 GA _60R410A_3D INVERTER_US_NA_171121 2017 SERVICE MANUAL...
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Страница 11: ...Specifications Page 7 MOB01 09HFN1 MW0W MOB01 12HFN1 MV0W MOCA01 18HFN1 MT0W...
Страница 12: ...Specifications Page 8 MOD01 23HFN1 MT0W...
Страница 15: ...Specifications Page 11 PCB board of MOD01 23HFN1 MT0W...
Страница 16: ...Specifications Page 12 IPM board of MOD01 23HFN1 MT0W...
Страница 101: ...Troubleshooting Page 97 Remark Measure the DC voltage between P and N port The normal value should be around 310V...