Check Motor Thermal Switch Unplug thermal | Graco ti14838b instruction

Troubleshooting

TYPE OF PROBLEM	WHAT TO CHECK	HOW TO CHECK

Sprayer does not run at all	Control is commanding motor to run	6. Perform Field Short Test: Test at large 4-pin motor
	but motor shaft does not rotate.	field connector. There should not be continuity from
Digital display shows E=05	but motor shaft does not rotate.	field connector. There should not be continuity from
Digital display shows E=05	Possibly locked rotor condition,	pin 4, the ground wire, and any of the remaining
	Possibly locked rotor condition,	pin 4, the ground wire, and any of the remaining
	an open connection exists between	3 pins. If motor field connector tests fail,
	motor and control, there is a problem	replace motor.
	with motor or control board, or	7. Check Motor Thermal Switch: Unplug thermal
	motor amp draw is excessive.	7. Check Motor Thermal Switch: Unplug thermal
		wires. Set meter to ohms. Meter should read the
Control board status light blinks		wires. Set meter to ohms. Meter should read the
Control board status light blinks		proper resistance for each model (see table below).
5 times repeatedly		proper resistance for each model (see table below).

3A0157B

Graco ti14838b, ti15034a, ti15036b, ti15035b Check Motor Thermal Switch Unplug thermal