Gas Valve LED Codes

LED Status	Problem		Solution
○ ○ ▼ A B C		1.	Check that the earth ground connection is properly
● ○ ○ ● ○ ○	An open earth ground circuit to the	2.	connected.
	ignition system.	2.	Check that the ground conductor on the water
			heater is properly connected.
○ ○ ▼ A B C		1.	Check proper connection of line
● ○ ● ○ ● ○	Wiring error or a high resistance to	2.	neutral and hot wires.
	earth ground.	2.	Check that the water heater is securely connected
			to earth ground.
○ ○ ▼ A B C	Pressure switch remained closed	1.	Pressure switch wiring is incorrect.
● ○ ● ○ ○ ○	longer	2.	Replace pressure switch.
● ○ ● ○ ○ ○	than 5 seconds after the call for	2.	Replace pressure switch.
	heat began.
○ ○ ▼ A B C	Pressure switch remained open lon-	1.	Pressure switch wiring is incorrect.
● ○ ● ○ ○ ●	thanger 5 seconds after the combustion	2.	Pressure switch tubing is not connected correctly.
	blower was energized.	3. Air intake or exhaust obstructed.
○ ○ ▼ A B C	Error in the hot surface ignitor cir-	1.	Check that all wiring is correct and secure.
● ○ ● ○ ● ●	cuit.	2.	Replace hot surface ignitor.
○ ○ ▼ A B C	System in lockout.	1.	Gas supply is off or too low to operate.
● ○ ○ ● ● ○		2.	Hot surface ignitor not positioned
			correctly.
		3.	Low voltage to the water heater.
		4.	Electric polarity to unit is incorrect - test and cor-
			rect.
		5.	Combustion shut-off device tripped, contact ser-
			vice agency.
○ ○ ▼ A B C		1.	Turn power to the water heater off for 10 seconds
● ○ ○ ○ ● ●	Problem in the gas valve driver cir-		and then back on.
	cuit.	2.	Replace gas control valve.
		2.	Replace gas control valve.
○ ○ ▼ A B C		1.	Turn power to the water heater off for 10 seconds
● ○ ● ● ● ○	Problem with the internal circuit.		and then back on.
		2.	Replace gas control valve.
○ ○ ▼ A B C		1.	Turn power to the water heater off for 10 seconds
● ● ● ● ● ●	Problem with the internal circuit.		and then back on.
		2.	Replace gas control valve.
○ ○ ▼ A B C	Flame signal sensed out of	1.	Replace gas control valve.
● ○ ○ ○ ● ○	proper sequence.
○ ○ ▼ A B C	ECO activated.	1.	Replace gas control valve.
● ○ ○ ● ● ●	ECO activated.
○ ○ ▼ A B C	One of the temperature adjust	1.	Press and release each of the buttons once.
● ○ ● ● ○ ○	buttons stuck closed.	2.	Replace gas control valve.
○ ○ ▼ A B C	Water temperature sensor is either open	1.	Check that all wiring is correct and secure.
● ○ ● ● ○ ●	or short circuited.	2.	Replace gas control valve.
○ ○ ▼ A B C		1.	Check for correct wiring to FV sensor.
● ○ ○ ● ○ ●	Unit shuts down.	2.	Check for open circuits to FV sensor.
		3.	Replace FV sensor.
○ ○ ▼ A B C		1.	FV sensor detected presence of flammable vapors.
● ○ ○ ○ ○ ●	Unit shuts down and in lockout.	2.	Contact a service agency.

CAUTION: Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON.

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING.

CAUTION: For your safety DO NOT attempt repair of gas piping, remote control, burners, vent connectors or other safety devices. Refer repairs to qualified service personnel.

AP14236 specifications

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