Kenmore 153.331350 Use & Care Manual page 64

• Control has sensed a repeated failure in the vent protection switches and has gone
into locked out state.
• Ensure there are no blockages in the blower or venting, no water has accumulated in
the venting system or snow, dirt, debris etc. is blocking the termination.
• Ensure the blower dilution openings and blower wheel are not clogged with dirt or lint.
• If wiring has been worked on, ensure all wiring is in its original position and
connection.
9
• Ensure the air pressure switch tubing is not leaking or kinked.
• Ensure ambient air conditions around the heater are acceptable. High ambient
conditions, especially when combined with dirty air conditions can cause the blower
high limit switch to trip (see "High Ambient Temperature Installations" section in the
manual).
• See corrective actions 4 and 5 to check the blower and high limit switch.
• If all conditions and blower are good and the heater will not run, replace the control.
• Control has sensed a repeated failure in the flame sensing circuitry during operation
10 and has gone into locked out state. Follow the procedure detailed corrective action 8
for corrective action.
• Control has sensed a malfunction in the sequence of operation and has gone into
11 locked out state. Ensure all wiring is correct and the heater is properly grounded.
• If all conditions are good and the control will not reset, replace the control.
• Control has sensed flammable vapors and shut down the system. See "Safety
12 Lockouts" and "Flammable Vapor Sensor" sections in the manual.
• See also corrective action 13.
• Control has sensed a problem with the flammable vapor sensor itself. See corrective
13 action 12.
• If replacing the sensor does not correct the fault, replace the control.
• Control has sensed an error in the temperature sensing circuit and has gone into
14 locked out state. If resetting the control does not clear the fault code, replace the
control.
• Control has sensed an error in the electronics of the valve and has gone into locked
15
out state. If resetting the control does not clear the fault code, replace the control.
• Control has sensed an error in the control circuits of the valve and has gone into
16 locked out state. If resetting the control does not clear the fault code, replace the
control.
• Control has failed. If resetting the control does not clear the fault code, replace the
17
control.
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