Midea RSJ-15/190RDN3-D

MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual
55
I. "Ed": EEPROM malfunction
Display
Ed
Method of
malfunction
detection
Check whether EEPROM is normal
Supposed
Causes
1. Something wrong with the outdoor unit PCB.
2. Something wrong with the EEPROM.
3. External factor other than malfunction.
Troubleshooting
Ed
Turn the power supply off
once and then back on
Is normal reset
possible?
Turn the power supply off
and replace the EEPROM,
Problem could be cause by External
factor (noise, etc.) other than
malfunction
Replace the main control
board.
Continue operation
YES
NO
YES
NO