Graco 24R200 operation manual Problem, Cause, Verification, Solution, No heat

Troubleshooting

Problem	Cause	Verification	Solution
No heat.	Tripped circuit breaker.	Visually check circuit	Determine cause of tripped
		breaker for a tripped condi-	circuit breaker. Then repair
		tion.	fault and reset main circuit
			breaker.
	Low power.	Measure voltage across cir-	1. If voltage is lower than
		cuit breakers. Voltage	expected, use electrical
		should measure between	schematic to locate
		190 and 264 Vac.	faulty wiring or connec-
			tion.
			2. Have a qualified electri-
			cian service electrical
			components.
	Cable unplugged/loose	Check for loose or discon-	Attach plug/wire.
	wire.	nected wires and plugs.
	Incorrect temperature set	Verify zone has a correct	Enter Setup and enter cor-
	point.	temperature setting on the	rect temperature.
		controller.
	Contactor not closing.	Turn on heat for zone A1	1. Verify that there are no
		and ensure contactor	other error conditions
		closes.	that would prevent
			heater from starting.
			2. Replace contactor.

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