LCAC R32 Series
103
Service manual
4.4.4 E1 malfunction
• Current loop communication:
Malfunction conditions
Indoor unit does not receive feedback from outdoor unit for 110 seconds. This occurs 4 times in a
row.
Possible causes
• Wiring mistakes
• Faulty indoor or outdoor PCB
Measure Vs. Is it a positive
fluctuation?
(Vs is the voltage between S and N of
outdoor unit. Red pan-S, Black pan-N.)
Yes
Power off, then restart the unit 2 minutes later.
Does a problem still exist?
No
Replace the outdoor main PCB.
Power on. Is the error resolved?
Check the utdoor wiring connection. Has
the problem been resolved?
Replace the indoor main PCB.
Power on. Is the error resolved?
Yes
Replace the outdoor mainPCB
No
Replace the indoor main PCB
No
Check the indoor wiring connection
Yes
Yes
Is the reactor
functioning normally?
Yes
Replace the reactor
No
PART 6. TROUBLESHOOTING
Содержание J100Wi
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Страница 13: ...LCAC R32 Series 13 Service manual PART 2 INDOOR UNITS 1 5 2 Units 30 42K a Cooling b Heating ...
Страница 14: ...LCAC R32 Series 14 Service manual PART 2 INDOOR UNITS 1 5 3 Units 48 55K a Cooling b Heating ...
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Страница 49: ...LCAC R32 Series 49 Service manual PART 3 OUTDOOR UNITS 3 4 Wiring diagrams T100Wo N100Wo J100Wo ...
Страница 131: ...LCAC R32 Series 131 Service manual NOTES ...
Страница 132: ...www rotenso pl email info rotenso pl Installer stamp ...