Sears 153.33262 manual Pressurized Combustion Chamber System Operational Checklist

Pressurized Combustion Chamber System Operational Checklist

1.Manifold gasket properly sealed.

2.Viewport not damaged or cracked.

3.Combustion chamber free of debris and undamaged.

4.Manifold component block properly installed.

5.No leaks at manifold connection.

6.Manifold door screws securely tightened.

TROUBLESHOOTING CHART

PROBLEM		POSSIBLE CAUSE(S)		CORRECTIVE ACTION
	1.	Transformer unplugged.	1. Plug transformer back into 120 VAC. outlet.
NO HOT WATER	2.	No power at outlet.	2.	Repair service to outlet.
	3.	Thermostat defective.	3.	Replace Thermostat.
	4.	Air Intake Chamber Fan defective.	4.	Replace Air Intake Chamber Fan Assembly.
	5.	Pressure Switch defective.	5.	Replace Pressure Switch Assembly.
	6.	Gas Valve/Thermostat Switch in “OFF	6.	Move Gas Valve/Thermostat Switch to “ON POSI-
		POSITION”.		TION”.
	1. Thermostat set too low.		1. Set temperature control higher.
INSUFFICIENT HOT WATER	2.	Thermostat defective.	2.	Replace thermostat.
	3.	Heater undersized.	3.	Reduce hot water use.
	4.	Low gas pressure.	4.	Contact dealer.
	5.	Incoming water is unusually cold.	5.	Allow more time for heater to reheat.
	6.	Leaking hot water pipes or fixtures.	6.	Have plumber check and repair leaks.
	1.	Low gas pressure.	1. Check with gas utility company.
	2.	Improper calibration.	2.	Replace thermostat.
	3.	Thermostat set too low.	3.	Turn temperature dial to desired setting.
SLOW HOT WATER	4.	Water heater too small.	4.	Install adequate heater.
RECOVERY	5.	Wrong piping connections.	5.	Correct piping-dip tube must be in cold inlet.
	6.	Wasted hot water.	6.	Advise customer.
WATER TOO HOT	1.	Thermostat set too high.	1. Set temperature control lower.
				see, “WATER TEMPERATURE REGULATION”,
				section.
	1. Dirt in burner ports.		1. Turn off heater and gas, clean burner head.
	2.	Combustion air path restricted.	2.	Check intake venting arrangements for obstruc-
BURNER FLAME	3.	Not enough dilution air for proper com-	3.	tions.
				Check intake venting arrangements for obsruc-
YELLOW - LAZY	4.	bustion.	4.	tions.
		Main burner line clogged.		Clean, locate source and correct.
	5.	Obstruction in main burner orifice.	5.	Clean or replace orifice.
	6.	Burner flame too high.	6.	Check orifice and replace if necessary.
	7. Flame burns at orifice/thermostat not		7.	Replace thermostat
	8.	functioning properly.	8.	Check with gas utility company.
		Low gas pressure.
	1. Orifice too large/wrong orifice.		1.	Replace with correct-orifice.
BURNER FLAME FLOATS	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 correct.
AND LIFTS OFF PORTS
		blocked.
	4.		4.	Locate source and correct.
		Cold drafts.
	1.	Insufficient secondary air.	1. Provide ventilation to water heater. Check
COMBUSTION ODORS				flue.
	2.	Water heater flue or vent system	2.	Clean, locate source and correct.
	3.	blocked.	3.	Provide fresh air ventilation.
		Heater installed in a confined area.

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