Ruud AP14236 Before You Call For Service…, Problem, Possible Causes, What To Do

Before You Call For Service…

Troubleshooting Tips

Save time and money! Review the charts on the following pages first and you may not need to call for service.

This water heater incorporates a combustion shut off device that shuts the operation of the water heater down if undesirable combustion conditions occur, such as the presence of flammable vapors or blockage of the combustion air inlet openings. Please contact a Qualified Service Technician if this occurs.

Problem Possible Causes What To Do

Condensation	This usually happens when
	a new water heater is
	filled for the first time.

This is normal. After the water in the tank warms up, the condensation will disappear. If, however, the condition persists, examine the piping and fittings for possible leaks.

Moisture from the products of combustion condensing on the tank surface.

This is normal and will disappear in time. Excessive condensation can cause main burner outage.

An undersized water	 Use a water heater size that meets the requirements
heater will cause	of your needs.
condensation.

Yellow flame or soot

Scale on top of the burner.	 Contact a qualified service technician to remove scale.
Flue or Combustion air inlet	 Remove obstruction or debris from flue or
openings are restricted.	combustion air inlet openings on water heater jacket.
Not enough combustion or	 Proper operation of the water heater requires air for
ventilation air supplied to	combustion and ventilation. See the Combustion and
the water heater location.	Ventilation Air information in the “Installing The
	Water Heater” section of this manual.

Unable to light	Air in gas line.	 Contact a qualified service technician to purge the air
the main burner		from the gas line.
	Gas Cock Knob not	 Contact a qualified service technician to correctly position
	correctly positioned.	the gas cock knob.
	Blocked Exhaust	 Contact a qualified service technician to evaluate vent
		pipe for blockage.
	Pressure Switch	 Make sure the pressure switch hose is not "kinked".
	Wire Connection not fully	 Contact a qualified service technician to confirm wire
	secured.	connections.
	Combustion Shut-off Device	 Combustion shut-off device should be inspected by a
	tripped,	qualified service technician.
	Gas Control Problem	 Contact a qualified service technician.
Main burner does not	Gas Controls (Thermostat’s)	 The gas control (thermostat) should be replaced by a
stay lit	single use gas shut-off device	qualified service technician.
	has opened.
	Combustion Shutoff Device	 The combustion shutoff device should be inspected
	Tripped.	by a qualified service technician.

CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors or other safety devices. Refer repairs to qualified service personnel.

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