Service Manual Ideal Air CG2 Commercial Grade Dehumidifier
Sunlight Supply, Inc.
12
6.
CIRCUIT DIAGRAM
7.
ERROR CODES
CODE
ER1
ER2
ER3
ER4
Error message
Coil sensor error. Humidity sensor
error.
Low or no
refrigerant.
Water pump
fault or
blockage.
Display reading
Flashes every 1
second.
Flashes every 1
second.
Flashes every 1
second
Flashes every 1
second.
Reason
The coil sensor‘s
terminals are not
securely plugged
in.
The humidity
sensor ‘s
terminals are not
securely plugged
in.
1. The coil
sensor has
fallen off
2. Refrigerant
leak.
1. Water pump
is damaged.
2. Debris in
water pump.
Remedy
1. Check to
ensure the coil
sensor‘s terminal
is securely
plugged in.
2. Replace the
coil sensor.
3.Replace display
panel PCB.
1. Check to
ensure the
humidity
sensor‘s terminal
is securely
plugged in.
2. Replace the
humidity sensor.
3.Replace display
panel PCB.
1. Reinstall coil
sensor to the
correct position
2. Identify
leakage if any,
and re-‐charge
the refrigerant.
3. Replace
display panel
PCB
Replace or
clean the water
pump.
