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
Summary of Contents for J100Wi
Page 1: ...LCAC R32 SERIES Tenji W Jato W Nevo W ENG Service manual ...
Page 13: ...LCAC R32 Series 13 Service manual PART 2 INDOOR UNITS 1 5 2 Units 30 42K a Cooling b Heating ...
Page 14: ...LCAC R32 Series 14 Service manual PART 2 INDOOR UNITS 1 5 3 Units 48 55K a Cooling b Heating ...
Page 18: ...LCAC R32 Series 18 Service manual PART 2 INDOOR UNITS 1 10 1 Wiring diagram for T140Wi T160Wi ...
Page 44: ...LCAC R32 Series 44 Service manual PART 2 INDOOR UNITS 3 10 FIELD WIRING ...
Page 131: ...LCAC R32 Series 131 Service manual NOTES ...
Page 132: ...www rotenso pl email info rotenso pl Installer stamp ...