American Water Heater BCG3 Troubleshooting, Complaint Cause Remedy User, Qualified Service Agency

Troubleshooting

COMPLAINT	CAUSE	REMEDY
		USER	Qualified Service Agency
*Water not hot enough	Thermostat set too low.	Set thermostat dial to a higher
		temperature
	Upper and/or lower temperature	Call qualified service agency	Check continuity and resistance (Ohms)
	probe out of calibration.		of upper and lower temperature probes.
			Replace probes if out of specification.
*Insufficient hot water	Thermostat set too low.	Set thermostat dial to a higher
*See WATER TEMPERATURE		temperature
CONTROL WARNING (on page	Upper and/or lower temperature	Call qualified service agency	Check continuity and resistance (Ohms)
12).	probe out of calibration.		of upper and lower temperature probes.
			Replace probes if out of specification.
	Main manual gas shutoff valve	Open main manual gas shutoff
	partially closed.	valve to fullest extent.
	Heater too small for demand.	Space usage to give heater time
		to restore water temperature.
	Heater recovery is slower.	Call qualified service agency	Check gas input. If incorrect, adjust gas
			pressure or replace burner orifices.
	Gas pressure switch doesn't close.	Call qualified service agency	Temporarily bypass the gas pressure
			switch connections and measure
			gas supply pressure while the unit is
			running. If less than 5.2" WC, adjust
			the gas supply pressure above 5.2" but
			less than 11". If greater than 5.2" WC,
			replace the gas pressure switch.
Water temperature too hot.	Thermostat set too high.	Set thermostat to a lower setting.
Heater makes sounds: sizzling.	Condensation on outside of
	tank, normal.
Rumbling.	Sediment accumulation on	Drain a quantity of water through	Delime heater.
	bottom of tank.	drain valve. If rumbling persists,
		call a qualified service agency.
Ticking or metallic sounds.	Expansion and contraction -
	normal.
Pounding or water hammer.	Air chambers in piping have	Drain piping system and refill.	Follow the manufacturers instructions
	become waterlogged. Thermal	Heater must be off while this	for proper charging of the thermal
	expansion tank damaged,	is being done. Check thermal	expansion tank.
	improperly charged, or	expansion tank charge pressure
	improperly sized.	when the water system pressure
		is zero.
Combustion noises.	Too much primary air.	Call service agent.
	Overfired heater; Incorrect	Call service agent.	Check and correct as necessary.
	burners or orifice for type of gas
	used.
Water leaks.	Drain valve not closed tightly.	If drain valve cannot be closed
		tightly, replace.
	Possible condensation if tank	Increase tank temperature
	is undersized or stored water is	setting (add a mixing valve
	below 110 degrees.	if setting will be above 120
		degrees).
	If leakage source cannot be	Shut off gas supply to heater	Repair or in case of suspected tank
	corrected or identified, call	and close cold water inlet valve	leakage, be certain to confirm before
	qualified service agency.	to heater.	replacing heater.
Gas odors.	Heater is over fired	Shut off gas supply to heater	Check for sooted flue passage.
		and call a service agent.
			Check for obstructed vent line.
			Check backdraft or lack of draft
	Possible gas leaks.	Shut off gas supply to heater
		and call gas company at once

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