E7
NewAir
Mode Control or EEPROM Configuration Error
Unit displays E7 and may not switch modes correctly (cool, fan, dehumidify).
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Corrupted EEPROM on main control PCB, failed mode relay driver, incorrect control board for model, power surge damage
How to Fix / Troubleshooting
Safety: Disconnect power before accessing internal electronics.
Steps:
- Power reset: Unplug the unit for at least 10 minutes to allow capacitors to discharge and the control to fully reset. Plug back in and test.
- Check model compatibility: If the control board was recently replaced, verify that the installed main control PCB is the correct part number for your specific NewAir model.
- Inspect board for damage: Look for burn marks, cracked components, or swollen capacitors on the main control PCB.
- Surge protection: If E7 appeared after a storm or outage, consider using a surge protector once repairs are complete.
- Replace control board: In most cases, an E7 EEPROM/mode error requires replacement of the main control PCB, as the EEPROM is integrated.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements