Malfunction Display: E9 Full Water Protection; Malfunction Display: F2 Failure Of Evaporator Temp. Sensor - York DHM42CMB21S Service Manual

Malfunction Display: E9 Full Water Protection

n
Full Water Protecti o
Y
Check if water overflow
Y
Check if the water drainage
pump works
Y
Check if the condensate pipe is
jammed or if water flows smoothly
Y
Clear the water from pipe

Malfunction Display: F2 Failure of Evaporator Temp. Sensor

Failure of condenser Temp sensor
Check if the plug of the temperature sensor is correctly
connected with socket on the mainboard
Remove the sensor to check if the resistance value is ok
Replace mainboard of the indoor uint
N
Check if the voltage of liquid
level switch end is ok
N
Check if the voltage of water
drainage pump end is ok
N
Adjust water drainage in pipe
Y
Y
Y
N
Replace the main board of
the indoor uint
Y
Check the liquid level
switch
N
Replace the main board of
the indoor uint
Y
Check the cables of water
drainge pump
N
Check the direction of the plug and
socket
N
Replace temperature sensor
43