Enviro 6G50 76N Troubleshooting Guidelines, Trouble Shooting, LED Status Problem Solution

TROUBLESHOOTING GUIDELINES

TROUBLE SHOOTING

Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.

Read the GENERAL SAFETY INFORMATION section first.

INTELLI-VENT TROUBLESHOOTING CHART - USER CONTROL

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LED STATUS	PROBLEM		SOLUTION
		1	Ensure the wall outlet (power supply) is properly
	The gas control valve/thermostat		grounded.
	has sensed inadequate or no earth
	ground.	2	Ensure all ground connections/wires on the water
			heater are securely connected.
	The gas control valve/thermostat	1	Ensure the wall outlet/power supply is properly wired.
	has sensed reversed polarity in the	2	Ensure all internal 120 VAC wiring connections and
	120 VAC power supply.		wiring harness have no reversed wires. 120 VAC "hot"
			wire must connect to the on/off switch.
	Pressure switch circuit remaining
	closed for more than 5 seconds	1	Ensure air pressure switch circuit wiring is correct and
	after heating cycle begins.		the air pressure switch is not jumpered.
	Blower may not start in this	2	Replace the air pressure switch.
	condition.
		1	Ensure the air pressure switch sensing tube is properly
			connected at both ends and is not kinked or damaged.
	Pressure switch circuit remains	2	Ensure the correct size of vent and intake air pipe (direct
			vent products) was used per the installation instructions
	open longer than 5 seconds after
			in the manual that came with the water heater.
	the blower is energized.
	Blower may run continuously in	3	Ensure maximum number of elbows or maximum
			equivalent feet of vent or intake air pipe has not been
	this condition.
			exceeded per the installation instructions in the manual
			that came with the water heater.
		4	Ensure there are no obstructions in the vent or intake air pipe.
		1	Check wiring to the hot surface igniter assembly -
			replace igniter assembly if wiring is damaged or worn.
		2	Check resistance of the igniter at igniter assembly
			plug - should be between 11 and 18 ohms at room
			temperature (77° F at plug end) - replace igniter if open
	The gas control valve/thermostat		or shorted.
		3	Check igniter assembly plug and the socket on the gas
	has detected an open igniter circuit.
			control valve/thermostat for good connection.
		4	Replace igniter assembly if the plug is worn or damaged.
		5	Replace the gas control valve/thermostat if the igniter
			assembly socket on the bottom of the control is worn or
			damaged.
		1	Ensure flame sensor is making good contact with the
			burner flame and ensure flame is steady. Also ensure
	Ignition/flame failure.		supply and manifold gas pressures are within the
			requirements in the installation manual.
	The gas control valve/thermostat	2	Gas supply is turned off - pressure is too low.
	has reached the maximum number	3	Ensure the flame sensor is clean - use fine steel wool
	of retries (3) for ignition and is		to clean the flame sensor.
	currently locked out for one hour.	4	Check igniter assembly plug and the socket on the
	Cycle the power to the water heater		bottom of the gas control valve/thermostat for good
			connection. Replace igniter assembly if the plug is worn
	off and on to reset.		or damaged. Replace the gas control valve/thermostat if
			socket is worn or damaged.
		5	Replace igniter assembly.

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