GSI Outdoors PNEG-552 service manual Problem Possible Cause, Press the dryer power start button

10. Troubleshooting

A multimeter is required for some of the following checkout procedures. Before performing any tests, determine if the dryer power supply is 1 phase, 230 volt, or 3 phase, 230 or 460 volt.

•The burner circuit is 120 volts AC on all standard U. S. production models.

•The control circuit to the motor starters is 120 volts AC.

•The safety circuit is 12 volts DC.

•When checking these circuits, measure voltage between the circuit test location and to ground.

•DC circuits should be measured between the test location and its respective DC ground. Refer to Wiring Diagrams and the parts list for identification of parts and the electrical terminals.

When making high voltage tests with “live” circuits, be extremely careful. Follow established safety practices. Turn power ON for testing only. Do not attempt to make the dryer operate by using a jumper wire to bypass a defective safety component.

Problem		Possible Cause
Control power light OFF.	1.	Check that main power and circuit breakers are turned ON.
		Check for tripped breaker.
	2.	Check for blown 5 amp fuses.
	3.	Monitor relay is defective.
	4.	Defective transformer or wiring.
	5.	Check for a defective power switch.
	6.	Check wiring between fuses and input/output board. Refer to
		Wiring Diagrams for test locations.
Control power is ON. Drying mode light OFF.	1.	Power interruption: Incoming power to the dryer has been
		interrupted. The display screen will show the date and time if this
		has occurred, once power has returned.
This indicates control power is present at	2.	Display not finished initial setup: The monitor will display a
input/output board, but no power is being		copyright message and model number, total running time in
transferred through the I/O board.		hours and minutes and then the current date and time. To
		activate the controller press the reset button.
	3.	Input/output board: The input/output board has developed a
		problem that requires its replacement.
No display on LCD screen.	1.	Check for a defective power switch.
	2.	Check wiring between fuses and input/output board.
	3.	Check for 120 volts AC between points J6-02 and AC-1.
	4.	The display may have a malfunction requiring its replacement.
Control power light is ON, drying mode light is	1.	Press the dryer power start button.
ON-load auger, fan, heater, unload auger does not	2.	Refer to the problem listed for load auger, fan heater and unload
operate.		auger in the following sections.
Display shows “MOTOR OVERLOAD” message.	The thermal overload on the fan motor, load motor, unload motor or
	an auxiliary motor has opened indicating an overloaded motor.
	(The overloads must be manually reset.)
Display shows “VAPOR HIGH TEMPERATURE”	The LP gas vapor temperature sensor located in the gas train
message.	downstream from the vaporizer has opened, indicating that the
	vaporizer is running too hot and must be readjusted. (This control
	is a 200°F limit which automatically resets when it cools.)
Display shows “LOSS OF FLAME” message.	The flame sensor has failed to detect a burner flame, indicating
	that the burner has failed to light. There is a problem with the flame
	sensing circuitry or the dryer is not getting burner fuel.

PNEG-552100 Series Dryer

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