Test 1
120V AC Electrical Supply
When measuring power, be sure to wear insulated gloves to
avoid an electric shock.
No power was applied to controller. Display (LCD or LED) off.
Dryer power on, collector plugged in.
Check the outlet, is the voltage
110 V ~ 125 V AC?
YES
NO
Check the
fuse or circuit
breaker
YES
NO
Check if
power cord is
properly
connected.
Reconnect
the controller.
Replace controIler.
Check if the controller wire is
disconnected.
Check if terminal block and power
cord are connected (Check Plug ).
- Does power cord N (Naturall) line
match to terminal center
N (Natural) line?
1
YES
NO
2
L (Black)
L (Red)
N (White)
BK or WH
BL2
Check if the voltage measured
between connector BK- or WH-
(Black Wire) linked to the controller
and BL2- (White Wire) Is 110~125 V?
2
2
1
Caution
Trouble Symptom
Measurement
Condition
FOR LG TECHNICIAN
36
