Kenmore ELITE 153.33264 User Manual

Page 39

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CONTROL DISPLAY STATUS

PROBLEM

SOLUTION

"P-SW", "OPEN", and "CLEAN SCREEN" Flashing

The air pressure switch contacts

remain open longer than 11
seconds after the combustion fan
is energized.

1. Clean the screen on the combustion air

intake chamber. Turn the power "OFF" for

10 to 20 seconds then "ON" again to clear

the error code. If the problem persists:

2. Ensure the pressure switch sensing tube

is in good condition and securely
connected at both ends.

3. Ensure the inner door to the combustion

chamber is secure and the gasket is
properly sealing.

4. Check operation of the air intake chamber

fan and pressure switch.

A. Turn off power to the water heater.

B. Remove the tubing from the pressure

switch and the wires from both
terminals of the pressure switch.

C. Connect a digital manometer to the

open end of the tubing from the air

intake chamber. Turn on the power to

the water heater and when the fan turns
on, measure the pressure reading in the
tubing. If the pressure reading reaches
the .22" WC make point of the pressure
switch, turn off power to the water

heater and reconnect tubing to the
pressure switch. If pressure reading does

not reach the .22" WC make point, check
the system and tubing for restrictions
and cleanliness.

D. Attach leads of ohmmeter or continuity

tester to the terminals of the pressure
switch. Turn on power to the water

heater and when the air intake fan

comes on, check for continuity across
the pressure switch contacts. If switch

contacts remain open (no continuity)
while the fan is in operation - replace
the pressure switch.

7.

"P-SW" and "SHORT" Flashing

The air pressure switch contacts

remain closed for more than 5
seconds when they should be
open.

1. Turn off power to the water heater.

2. Locate the pressure switch wiring -

ensure pressure switch wiring is correct
and not jumped.

3. Remove wires to both terminals on

pressure switch.

4. Check pressure switch contacts with an

ohmmeter for continuity.

A.

If pressure switch contacts show

continuity (closed circuit) replace

the pressure switch.

B.

If pressure switch contacts show

open circuit and all wiring is correct

- replace the lower control.

8

.

"IGN" Flashing

Open ignitor circuit

1. Check all wiring to the hot surface ignitor.

2. Check the 3 pin Molex ignitor assembly

plug and receptacle on the lower control
for a good connection. Repair or replace
parts if necessary.

3. Check resistance of the ignitor with an

ohmmeter on the ignitor assembly plug.
Replace ignitor if resistance is not within

1.72 and 2.40 ohms.

4. If above checks are good - turn off

power for 10 seconds and then back on.
If this error code will not clear and the
ignitor resistance is within specifications
- replace the lower control.

9.

"FV-SENSE" Flashing

Flammable Vapor Sensor has
detected the presence of
flammable vapors and is in lockout

Do not touch any electrical switch, do not use

any phone in the building and do not try to

light any appliance.

Smell around the water heater to ensure there
are no gas leaks at the gas control valve or in
the supply gas line or for any other type of
flammable vapors in the area.

Carefully inspect the area surrounding the
water heater for any substances such as gas­
oline, paint, paint thinners, varnish, or cleaners
that could emit flammable vapors. Remove
anything that can potentially emit flammable
vapors from the area and store it properly in a

different location.

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39

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