State Industries SBD71120NE warranty Operational Checklist, Complaint Cause Remedy User Serviceman

OPERATIONAL CHECKLIST

This checklist in conjunction with “TROUBLESHOOTING” and the “SEQUENCE OF OPERATION” should be used as an on-the-job troubleshooting guide to identify the cause of incorrect system operation and suggest a remedy for its correction. Because improper piping and wiring can result in unsatisfactory system performance, it is suggested that the installation by examined before using the checklist. Be sure to refer to the correct piping and wiring diagram for the type of system that is installed.

COMPLAINT	CAUSE	REMEDY
		USER	SERVICEMAN
*Water not hot enough.	Thermostat set too low.	Set thermostat dial to
		a higher temperature.
	Thermostat out of calibration.	Call serviceman.	Recalibrate thermostat. If
			thermostat cannot be recalibrated,
			replace.
*Insufficient hot water	Thermostat set too low.	Set thermostat dial to a
*See WATER TEMPERATURE		higher temperature.
WARNING (on page 27)	Thermostat out of calibration.	Call serviceman.	Recalibrate thermostat. If
			thermostat cannot be recalibrated,
			replace.
	Main manual gas shutoff	Open main manual gas
	valve partially closed.	shutoff valve to fullest extent.
	Heater too small for demand.	Space usage to give heater
		time to restore water
		temperature.
	Thermostat differential is	Call serviceman.	Replace dual bulb controller if
	too wide.		differential is greater than 4°F.
	Heater recovery is slower.	Call serviceman.	Check gas input. If incorrect,
			adjust gas pressure or replace
			main burner orifice.
	Draft hood not installed or	Call serviceman.	Install draft hood or baffles as
	one or more flue baffles.		furnished with unit.
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
	bottom of tank.	through drain valve. If	Delime heater.
		rumbling persists, call
		a serviceman.
Ticking or metallic sounds.	Expansion and contraction-
	normal.
Pounding.	Air chambers in piping have	Drain piping system and
	become waterlogged.	refill. Heater must be off
		while this is being done.
Combustion noises.	Too much primary air.	Adjust shutters.
	Overfired heater. Incorrect
	burners or orifice for types	Call serviceman.	Check and correct as necessary.
	of gas used.
Water leaks.	Drain valve not closed tightly.	If drain valve cannot be
		closed tightly, replace.
	If leakage source cannot be	Shut off gas supply to heater	Repair or in case of suspected
	corrected or identified, call	and close cold water inlet	tank leakage, be certain to confirm
	serviceman.	valve to heater.	before replacing heater.
Gas odors.	Heater is overfired.	Shut off gas supply to	Check for sooted flue passage.
		heater and call serviceman.	Check for obstructed vent line.
			Check backdraft or lack of draft.
			Draft hood may be improperly
			installed or not sized properly.
	Possible gas leaks.	Shut off gas supply to
		heater and call gas
		company at once.

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