Diagnostic Code Chart: Electronic Thermostat (Et) - Sears Kenmore 153.589400 Use & Care Manual

Diagnostic Code Chart: Electronic Thermostat (ET)

Refer to the table below and on the following
page.
IMPORTANT: Before attempting to adjust the
thermostat, read the "Water Temperature Regulation"
section on page 16.
The Electronic Thermostat (ET) is designed so
that it may control the water heater without the
optional Assurelink ™ Controller being operated.
See page 17.
If the instructions are not clear, contact a qualifi ed
service technician.
(ET)
DIAGNOSTIC LED
LIGHT ON (Green Flash)
NO LIGHT
1 FLASH
(Red)
2 FLASHES
(Red)
3 FLASHES
(Red)
4 FLASHES
(Red)
5 FLASHES
(Red)
DIAGNOSTIC
LED LIGHT
PLASTIC GUARD
INDICATES
Normal operation.
No electrical power to control board
or diagnostic LED light burned out.
Dry-fire, electrical power on with the
tank not completely full of water.
Water temperature exceeded high
limit.
Upper thermistor sensor failure.
(Note: Upper thermistor sensor is
part of the Electronic Thermostat (ET)
Upper element circuit failure.
(Note: Lower element is still operable)
Lower element circuit failure.
(Note: Upper element is still operable)
Continued on the next page.
FIGURE 22
CORRECTIVE ACTION*
None
1. Check for blown fuses or tripped breaker.
2. If diagnostic LED light is burned out, replace Electronic
Thermostat (ET).
3. Check connections in junction box.
1. Turn off electrical power at breaker, add water.
2. Turn on electrical power at breaker.
3. See "Water Heater Start-Up" on page 16.
1. Turn off electrical power at the breaker.
2. Press the reset button (see Figure 15, page 17).
3. Turn on electrical power at breaker.
4. If error returns call a service technician for assistance.
1. Turn off electrical power at the breaker.
2. Replace Electronic Thermostat (ET).
3. Turn on electrical power at breaker.
1. Turn off electrical power at the breaker.
2. Check upper element circuits for resistance of 5-25 ohms (replace
if required).
3. Check wires at elements and Electronic Thermostat (ET) for
damage. If this 4 flashes condition continues, replace Electronic
Thermostat (ET).
4. Turn on electrical power at breaker.
1. Turn off electrical power at the breaker.
2. Check lower element circuits for resistance of 5-25 ohms (replace
if required).
3. Check wires at elements and Electronic Thermostat (ET) for
damage. If this 5 flashes condition continues, replace Electronic
Thermostat (ET).
4. Turn on electrical power at breaker.
25
SETPOINT
KNOB
Electrical Shock Hazard
Do not remove the plastic
guard from over wiring.
Do not touch electrical wiring.
Failure to do so can result in
death or electrical shock.