EdgeStar AP16000G, Service Manual

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14
Sounds or vibration.
When unit is turned on or off the outer
shell “pops” or “clicks.” Normal sound. Outer shell is contracting or expanding
and will stop after a few minutes.
When unit is turned on or off “boiling” or
“running water” is heard.
Normal sound. The cause is refrigerant flowing inside the
system and will stop after a few minutes.
Foreign objects inside the unit are
interfering with fans or other moving parts.
Remove foreign objects.
Compressor vibration. Tighten bolts holding compressor to chassis.
Room too cold (or too
hot.)
Set temperature is too low (or high.) Adjust the set temperature.
7.2 Error Codes
Code
LED
Indication
Malfunction Possible Causes and Solutions
F1
LED blinks
once then off
for 3
seconds. Indoor ambient
temperature sensor
is open/short
circuited.
Sensor connection is loose or disconnected. Reconnect
any loose or disconnected wires.
Sensor wire is damaged. Repair wire or replace sensor.
Sensor is defective. Replace sensor.
Main PCB is defective. Replace PCB.
F2
LED blinks
twice then off
for 3
seconds. Evaporator
temperature sensor
is open/short
circuited.
Sensor connection is loose or disconnected. Reconnect
any loose or disconnected wires.
Sensor wire is damaged. Repair wire or replace sensor.
Sensor is defective. Replace sensor.
Main PCB is defective. Replace PCB.
F4
LED blinks
four times
then off for 3
seconds. Condenser
temperature sensor
is open/short
circuited.
Sensor connection is loose or disconnected. Reconnect
any loose or disconnected wires.
Sensor wire is damaged. Repair wire or replace sensor.
Sensor is defective. Replace sensor.
Main PCB is defective. Replace PCB.
F0 NA
Low refrigerant
charge due to leak
or defect. Find leak and repair.
Recharge refrigerant.
H3 NA
Compressor
overload protection.
The coils are dirty or the air inlet or outlet is blocked.
Clean coils and/or move/remove obstructions.
Fan is not running or set too low. Increase fan speed or
replace fan if defective.
Compressor is defective. Replace compressor.
Refrigerant leak. Repair leak and recharge system.