Grindmaster AM-344-04 Heating Problems, Troubleshooting cont, Filling Problems, Possible Causes

Troubleshooting (cont.)

Filling Problems

Problem	Possible Causes	Service Check	Remedy
Tank does not refill	• Fill valve or control	• Check to ensure proper	• If 6 pin connector is securely
	board is faulty	connection between	attached to control board and
		6 pin connector and con-	all connections are secure
		trol board. Check	and there is 24 Vac across
		for proper connections	fill valve terminals, replace
		at fill valve terminals.	fill valve.
		Drain 1 gal. (3.8L) of
		water from hot water
		faucet. Check for 24 Vac
		across fill valve
		terminals.

Heating Problems

Problem	Possible Causes	Service Check	Remedy
Tank does not heat	• No electrical power to	• Check for proper voltage	• Establish electrical power
	equipment	at terminal block. Check	to unit.
		circuit breaker on supply
		circuit.
	• No power to control	• Check for proper voltage	• If there is not proper voltage
	board	across transformer	across primary, proceed to step
		primary terminals by	entitled “No power to control
		disconnecting terminals.	board and transformer not
		See wiring diagram for	powered”. If there is proper
		more information.	voltage across primary, proceed
			to step entitled “No power
			to control board and
			transformer powered”.

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