Corrective Actions - Kenmore 153.331350 Use & Care Manual

Corrective Actions
NOTE: Many failures can be attributed to problems with the installation, e.g. incorrect vent setup, dirt and
lint accumulation in the blower, problems with the gas or electrical supply, poor grounding, unsatisfactory
air supply and ventilation issues. Undersized heaters can experience high rates of condensation which
may aggravate ignition and flame rod issues.
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2 • No action required.
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• Flame rod not properly seated in flame, reposition rod.
• Flame rod oxidized, clean with fine steel wool or replace flame rod.
• Check that blower operates and does not have any blockages.
• Check that all wiring is correct.
• Check that air pressure switch tubing is not twisted or damaged and that the
connections are not obstructed or damaged. To check switch, turn "OFF" power to
the heater, disconnect the wires on the air pressure switch and check for electrical
continuity on the switch.
• a. If the switch contacts show continuity, (closed circuit) replace the air pressure
switch.
• b. If the switch contacts show open and all wiring is correct, replace the control.
• Ensure there are no blockages in the blower or the venting system.
• Check that the venting system is properly sized and the proper vent termination is
installed. Over-extended venting, vent blockages or improper vent termination can
prevent the pressure switch from closing.
• Ensure blower high limit switch is not open. NOTE: The blower high limit switch is
wired in series with the air pressure switch.
• Check for electrical continuity across high limit switch. Replace high limit switch if
contacts remain open.
• Ensure high limit switch contacts are operating properly. Use the same procedure as in
4 above.
• Ensure there are no leaks or kinks in the air pressure switch tubing.
• Restart and verify the LED flash sequence. If the 4 flash sequence is observed, turn
Gas Control Valve/Thermostat knob to OFF. Turn Main Gas Supply OFF. Replace the
Gas Control Valve/Thermostat. See "Removing and Replacing the Gas Control Valve/
Thermostat."
• Ensure all wiring is correct and the heater properly grounded.
• Check that the flame rod is in the correct position and not oxidized.
• See also corrective action 8.
• Control has failed to ignite heater and has gone into locked out state. Ensure gas
supply is on and at the correct pressure.
• Check igniter for broken or disconnected wires.
• Ensure heater is properly grounded and is operating at 115-120VAC.
• Ensure igniter and flame rod or igniter and flame rod ceramic insulator is not cracked
or broken. Replace as required.
• Ensure heater is not under-sized causing undue condensation on the burner and that
the venting and vent termination is correct (see "Venting" section in the manual).
• If all conditions are good and the appliance will not light, replace the control.
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