Electric Dryer Completely Inoperative; Electric Dryer Completely Inoperative; Electronic Control Testing - Frigidaire Dryer Servicing

Section 3 Electronic Control Testing

Electric dryer completely inoperative.

Note: Always check wiring to the components.
Note: If a fault code is displayed, the dryer will not operate.
Measure the voltage drop
between the red wire on the
thermal limiter and neutral.
0.
Defective household
power supply or
broken wire between
dryer terminal block
and thermal limiter.
Defective thermal
Measure the voltage drop
between pins 1 & 2 of the
eight pin plug of the wire
harness to the control
board.
120VAC.
0.
Broken wire between
thermal limiter and
the control board or
open wire between
pin 2 and neutral.
3-22
Dryer completely
inoperative.
Does the control beep or
the LED flash when the
start button is pushed.?
No.
120VAC.
Measure the voltage drop
between the orange wire on
the thermal limiter and
0.
neutral.
limiter.
120VAC.
Defective control
board.
Yes.
Is an error
code displayed?
No.
Measure the voltage drop
between pins 1 & 2 of J-4
120VAC.
Defective control
board.
>120VAC - 0<
Check the resistance of the
control thermistor at room
temperature.
50,000 Ohms +/-
10%.
Defective
electronic
control.
Yes.
Refer to error
code chart.
0.
Defective door
switch.
More or less than
50,000 Ohms +/- 10%.
Defective
thermistor.