LCAC R32 Series
107
Service manual
4.4.7 F4 Malfunction
Malfunction conditions
Main PCB chip does not receive feedback from EEPROM chip
Possible causes
• Installation mistakes
• Faulty PCB
Yes
Replace the outdoor main PCB
Power off, then restart the
unit 2 minutes later. Does a
problem still exist?
Outdoor EEPROM malfunction
F4-Display
4.4.8 F5 Malfunction
The same as E3 in indoor unit.
EEPROM:
An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed
using a pulsed voltage.
4.4.9 P0 Malfunction
Malfunction conditions
When the voltage signal te IPM sends to compressor drive chip is not normal, the LED displays “P0”
and the unit turns off.
Possible causes
• Wiring mistakes
• Faulty IPM board
• Faulty outdoor fan assembly
• Compressor malfunction
• Faulty outdoor PCB
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 44: ...LCAC R32 Series 44 Service manual PART 2 INDOOR UNITS 3 10 FIELD WIRING ...
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 ...