Midea RSJ-15/190RDN3-D

MCAC-RTSM-2011-12 Midea Combo Type Heat Pump Water Heater Technical Manual
54
H. "EE": The E-heater has no current error
Display
EE
Method of
malfunction
detection
Check whether the power line is connected correctly.
Supposed
Causes
1. The power voltage is too low or high
2. The e-heater is broken.
3. The electronic component on the main board for E-heater is broken .
4. The thermostat is open.
Troubleshooting
E8
Check whether the power
voltage is at the range of
220 V±10%
Check whether the
electronic component on
the main board is broken.
Check whether the e-heater
is broken.
Replace the e-heater.
Close the thermostat
Replace the main
control board.
NO
YES
YES
NO
Wait for the voltage normal or use a
voltage regulator
YES
NO
Check whether the thermostat
is open..
YES
Replace the electronic
component
NO