Bunn H5X service manual Equipment will not Operate Safety overflow switch

TROUBLESHOOTING (cont.)
Problem		Probable Cause	Remedy
Equipment will not	operate	2. Safety overflow switch	Refer to Service – safety overflow switch
(cont.)			for testing procedures. See page 18.
Automatic refill will not oper-		1. No water	Check plumbing and shut-off valves.
ate after drawing hot water.		2. Water strainer/flow control	(A) Direction of flow arrow must be point-
			ing towards dispenser.
			(B) Remove the strainer/flow control and
			check for obstructions. Clear or replace.
		3. Safety overflow switch	Refer to Service – safety overflow switch
			for testing procedures. See page 18.
		4. Liquid level system	Refer to Service – electronic controls for
			testing procedures. See page 12.
		5. Solenoid valve	Refer to Service – solenoid valve for test-
			ing procedures. See page 19.
Water flows into the tank con-		1. Solenoid valve	Refer to Service – solenoid valve for test-
tinuously (Dispenser	discon-		ing procedures. See page 19.
nected from power source).
Water flows into the tank con-		1. Liquid level system	Refer to Service – electronic controls for
tinuously (Dispenser connect-			testing procedures. See page 10.
ed to power source).
Water is cold.		1. Safety overflow switch	Refer to Service – safety overflow switch
			for testing procedures. See page 18.
		2. Limit thermostat	Refer to Service – limit thermostat for
			testing procedures. See page 17.

CAUTION – Do not eliminate or bypass limit thermostat. Use only B.O.M. replacement part #23717.0003.

3.	Tank heater	Refer to Service – tank heater for testing
		procedures. See page 20.
4.	Temperature control	Refer to Service – electronic controls for
		testing procedures. See page 10.

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