Midea RSJ-15/190RDN3-D

MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual
52
F. "E8": Electric leakage protection error
Display
E8
Method of
malfunction
detection
Check whether the power line is damage.
Supposed
Causes
1. The power line doesn’t pass through leakage detection components.
2. The electronic component is leakage.
3. There is some conducting liquid on the main board .
4. The power line is damage.
Troubleshooting
E8
Check whether there is
some conducting liquid
on the main board
Check whether the power
line is damage.
Check whether the power line
pass through the leakage
detection components.
Make the line pass through leakage
detection components.
Replace the electronic
component
Replace the main
control board.
NO
YES
YES
NO
Make the main board dry.
YES
NO
Check electronic component
whether there is leakage.
YES
Replace the power line