LCAC R32 Series
104
Service manual
• For 485 Communication
Malfunction conditions
Indoor unit does not receive feedback from outdoor unit for 60 seconds OR outdoor unit does not
receive feedback from indoor unit for 120 seconds.
Possible causes
• Wiring mistakes
• Faulty indoor or outdoor PCB
Communication malfunction between indoor
and outdoor units
E1 displayed
No
Power off, then restart the unit 2
minutes later. Does a problem still
exist?
Adopt shield cable/shield
cable earthing
No
Yes
Yes
Remove interference or
add magnet ring on power
wire
Yes
Replace the signal wire
Yes
Pull out and insert back
No
No
Replace the indoor main PCB, is the
error resolved?
Yes
Replace the outdoor Main PCB.
No
Is there any interference such
as too many lamps, power
transformers?Or is the signal
wire too long?
Is the signal wire a shield cable
and is the shield cable a
earthing?
Is the signal wire is broken?
Are the signal wires properly
inserted on PCB?
Malfunction conditions
If the outdoor current exceeds the current limit value, the LED displays a failure code.
Possible causes
• Wiring mistakes
• Faulty bridge rectifier
• System blockages
• Faulty outdoor PCB
4.4.4 E1 malfunction
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 ...