State Industries GS6 40 YOCT Series 201, 186489-002 Turn temperature dial to desired setting

PROBLEM		POSSIBLE CAUSE(S)		CORRECTIVE ACTION
HIGH OPERATION COSTS	1.	Thermostat set too high	1.	Set temperature dial to lower setting
	2.	Sediment or lime in tank	2.	Drain/flush-provide water treatment if needed
	3.	Water heater too small for job	3.	Install adequate heater
	4.	Wrong piping connections	4.	Correct piping-dip tube must be in cold inlet
	5.	Leaking faucets	5.	Repair faucets
	6.	Gas leaks	6.	Check with utility-repair at once
	7.	Wasted hot water	7.	Advise customer
	8.	Long runs of exposed piping	8.	Insulate piping
	9.	Hot water piping in exposed wall	9.	Insulate piping
INSUFFICIENT HOT WATER	1.	Thermostat set too low	1.	Turn temperature dial to desired setting
	2.	Sediment or lime in tank	2.	Drain/flush-provide water treatment if needed
	3.	Water heater too small	3.	Install adequate heater
	4.	Wrong piping connections	4.	Correct piping-dip tube must be in cold inlet
	5.	Leaking faucets	5	Repair faucets
	6.	Wasted hot water	6.	Advise customer
	7.	Long runs of exposed piping	7.	Insulate piping
	8.	Hot water piping in outside wall	8.	Insulate piping
	9.	Low gas pressure	9.	Check with gas utility company
SLOW HOT WATER	1.	Insufficient secondary air	1.	Provide ventilation to water heater. Check
RECOVERY	2.	Water heater flue or vent system	2.	flue way, flue baffle, and burner
				Clean flue, locate source and correct
	3.	blocked	3.	Check with gas utility company
		Low gas pressure
	4.	Improper calibration	4.	Replace thermostat
	5.	Thermostat set too low	5.	Turn temperature dial to desired setting
	6.	Water heater too small	6.	Install adequate heater
	7.	Wrong piping connections	7.	Correct piping-dip tube must be in cold inlet
	8.	Wasted hot water	8.	Advise customer
DRIP FROM RELIEF VALVE	1.	Excessive water pressure	1.	Use a pressure reducing valve and relief
	2.	Heater stacking	2.	valve
	3.	Closed water system		Lower the thermostat setting
			3.	See “Closed System/Thermal Expansion”
THERMOSTAT FAILS TO	1.	Thermostat not functioning prop-	1.	Replace thermostat
SHUT-OFF	2.	erly	2.	Replace thermostat
		Improper calibration
COMBUSTION ODORS	1.	Insufficient secondary air	1.	Provide ventilation to water heater. Check
	2.	Water heater flue or vent system		flue
			2.	way, flue baffle, and burner
	3.	blocked		Clean, locate source and correct
		Heater installed in a confined area	3.	Provide fresh air ventilation
SMOKING AND CARBON	1.	Insufficient secondary air	1.	Provide ventilation to water heater. Check
FORMATION (SOOTING)	2.	Low gas pressure	2.	flue way, flue baffle, burner
				Check with gas utility company
	3.	Water heater flue or vent system	3.	Clean, locate source and correct
	4.	blocked	4.	Replace thermostat
		Thermostat not functioning prop-
	5.	erly	5.	Provide fresh air ventilation
		Heater installed in a confined area	6.	See “Burner Flame Yellow-Lazy”
	6.	Burner flame yellow-lazy
CONDENSATION	1.	Temperature setting too low	1.	Increase the temperature setting
BURNER FLAME FLOATS	1.	Orifice too large	1.	Replace with correct orifice
AND LIFTS OFF PORTS	2.	High gas pressure	2.	Check with gas utility company
	3.	Water heater flue or vent system	3.	Clean flue and burner-locate source and cor-
	4.	blocked		rect
		Cold drafts	4.	Locate source and correct
BURNER FLAME TOO HIGH	1.	Orifice too large	1.	Replace with correct orifice
FLAME BURNS AT ORIFICE	1.	Thermostat not functioning prop-	1.	Replace thermostat
	2.	erly	2.	Check with gas utility company
		Low gas pressure
PILOT FLAME	1.	Pilot line or orifice clogged	1.	Clean, locate source and correct
TOO SMALL	2.	Low gas pressure	2.	Check with gas utility company

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