Troubleshooting Outdoor Unit Error Codes - Lennox MPA009S4S Service Manual

Mini-split systems
Table of Contents

Advertisement

23. Troubleshooting Outdoor Unit Error Codes

Error Code:
E0
Description:
Outdoor EEPROM malfunction.
General Note:
PCB main chip does not receive feedback from EEPROM chip. EEPROM: a read-only memory whose contents can be
erased and reprogrammed using a pulsed voltage. For the location of EEPROM chip, please refer to the photo.
Power off, then restart the unit 3 minutes
Outdoor EEPROM malfunction
later.
Yes
Does the problem still exist?
Yes
Replace the outdoor main PCB.
102

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents