Electronic control display troubleshooting, Electronic control display troubleshooting -40, B=j !=j – Kenmore ELITE 153.33264 User Manual

Page 38

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ELECTRONIC CONTROL DISPLAY TROUBLESHOOTING

POWER I6N HEATIM6

VAC LOCK CHECK

CLEAN

SCREEN

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1

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—\ —V

FV-SENSE

ECO

LDO-SW

IHM

P-ANODE P-SW

ELECTRONIC CONTROL DISPLAY

Please check guidelines below. For your safety, water heater service should be performed only by a qualified service person.

Read the GENERAL SAFETY INFORMATION supplied by the water heater manufacturer.

CONTROL DISPLAY STATUS

PROBLEM

SOLUTION

"POWER" Flashing

Communication Error

The system has detected a

communication error between the

upper and lower controls.

Check the 5-conductor data cable that

runs between the upper and lower

controls. Check that the wiring is not

broken, and the connectors on both ends

are properly seated in the mating

connectors.

Replace the upper control, if the error code

does not clear - cycle power to the water

heater "Off" and "On" to reset.

3. Replace the lower control if the problem persists.

"HEATING" and "SHORT" Flashing

The self-diagnostic tests have

found a problem with an internal

circuit.

1. Turn the power off for 10 to 20 seconds

then on again to clear the error code.

2. If the error code persists or cannot be

cleared, replace the lower control.

"HEATING" and "OPEN" Flashing

Ignition/flame failure.

The water heater has reached the

maximum number of retries and is

currently locked out for one hour.

Cycle the power to the water

heater off and on to reset.

1. Gas supply is turned off - pressure too

low. Ensure supply and manifold gas

pressures are within requirements in the

installation manual. Manifold gas

pressure is non-adjustable, if pressure is

off by more than 0.3" W.C. (75 Pa)

replace the lower control.

2. Low supply voltage - should be 1 1 5 -

125 VAC.

3. Ensure flame sensor is making good

contact with the burner flame, ensure

flame is steady.

4. Ensure the flame sensor is clean - use

ultra fine steel wool or Scotch-Brite™' pad

to clean the flame sensor.

5. Ensure the hot surface ignitor is

positioned to provide consistent ignition.

6. Check for any cracks in the ignitor

assembly ceramic insulators - replace

ignitor assembly if damaged.

7. Check resistance of the ignitor at room

temperature (77°F - 25°C) at the plug

end. Replace ignitor if the resistance is

not within 1.72 to 2.4 ohms at room

temperature.

"HEATING", "OPEN", and "SHORT" Flashing

Weak flame sensor current.

1. Ensure flame sensor is making good

contact with the burner flame, ensure

flame is steady.

2. Ensure the flame sensor is clean - use

ultra fine steel wool or Scotch-Brite™' pad

to clean the flame sensor.

"ECO" and "OPEN" Flashing

Water temperature in the tank has

exceeded 185°F (85°C) and has

activated the ECO.

1. Turn the power off for 10 - 20 seconds

then on again to clear this error code.

2. Replace the lower control if the error

code persists._____________________________

38

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