Enviro 6G50 76N instruction manual LED Status Problem Solution

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LED STATUS	PROBLEM		SOLUTION
	Self diagnostic check has detected	1	Turn the power off for 10-20 seconds then on again to
			clear these error codes.
	a problem with the gas valve driver
	circuit, internal microprocessor, or	2	If any of these error codes persist or cannot be cleared
	other internal circuits.
			- replace the gas control valve/thermostat.
		1	Turn the power off for 10-20 seconds then on again to
	The gas control valve/thermostat		clear these error codes.
	has sensed main burner flame out
	of proper sequence.	2	Replace the gas control valve/thermostat if this error
			code persists.
	Water temperature in the tank has	1	Turn the power off for 10-20 seconds then on again to
			clear these error codes.
	exceeded 195° F and has activated
	the ECO (energy cut off) high	2	Replace the gas control valve/thermostat if the error
	temperature limit.
			code persists.
		1	Press and release both temperature adjust buttons
	Self diagnostic check has detected		several times - cycle water heater power off and on.
	that one or both of the temperature
	adjust buttons are stuck.	2	Replace the gas control valve/thermostat if the error
			code persists.
	Self diagnostic check has detected	1	Turn the power off for 10-20 seconds then on again to
	the water temperature sensor		clear these error codes.
	(located in the control valve's
	immersion probe) is either open or	2	Replace the gas control valve/thermostat if the error
	shorted.		code persists.
		1	Turn off power to the water heater. Ensure black
	Self diagnostic check has detected		resistor wire is not cut, missing, and is installed
			between pins 3 & 4 of ignitor assembly plug. Replace
	a problem with black resistor wire
			ignitor assembly if damaged or defective.
	on the ignitor assembly plug;
	resistor wire is open or shorted.	2	Replace the gas control valve/thermostat if the error
			code persists.
	Self diagnostic check has	1	Turn off power to the water heater.
	determined resistance of the black	2	Replace the igniter assembly plug.
	resistor wire on ignitor assembly
	plug is not within tolerance.	3	Replace the gas control valve/thermostat if the error
			code persists.
		1	Ensure air pressure switch hose is not kinked or
			clogged, ensure the blower housing is clear of any
			condensation.
	The gas control valve/thermostat	2	Check vent temperature limit switch - if it is determined
	has detected the air pressure switch		that the vent temperature limit switch is opening its
	circuit is opening repeatedly during		contacts at normal operating temperatures during
	one heating cycle.		heating cycle - replace the vent temperature limit
			switch.
		3	Ensure water heater is not over-firing. Call the technical
			support for further assistance.

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