Whirlpool 318686-000 Diagnostic Code Chart Energy Smart Module ESM, Esm Error Code, Indicates

Diagnostic Code Chart Energy Smart® Module (ESM)

IMPORTANT: Before attempting to adjust the ther- mostat, read the “Water Temperature Regulation” section page 10.

The Electronic Thermostat (ET) is designed so that it may control the water heater without the Energy Smart® Module (ESM) being operated, see page 12.

If the instructions are not clear, contact a qualified person.

ENERGY	STANDARD VACATION	GRID
SMART		ENABLED

Error Code

Alert Icon

ALERT

°F/°C

(ESM) ERROR CODE	INDICATES		CORRECTIVE ACTION*
E01 with an alert Icon flashing.	Dry-fire, electrical power on with the tank not	1.	Turn off electrical power at breaker, add water.
	completely full of water.	2.	Turn on electrical power at breaker.
		3.	See “Water Heater Start-Up” on page 10.
E02 with an alert Icon flashing.	Water temperature exceeded high limit.	1.	Turn off electrical power at the breaker.
		2.	Press the reset button (see Figure 10A).
		3.	Turn on electrical power at breaker.
		4.	If error returns call a service technician for assistance.
E03 with an alert Icon flashing.	Upper thermistor sensor failure.	1.	Turn off electrical power at the breaker.
	(Note: Upper thermistor sensor is part of	2.	Replace Electronic Thermostat (ET).
	the ET)	3.	Turn on electrical power at breaker.
E04 with an alert Icon flashing.	Upper element circuit failure.	1.	Turn off electrical power at the breaker.
	(Note: Lower element is still operable)	2.	Check 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.
E05 with an alert Icon flashing.	Lower element circuit failure.	1.	Turn off electrical power at the breaker.
	(Note: Upper element is still operable)	2.	Check 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.
E06 with an alert Icon flashing.	Electronic Thermostat (ET) failure	1.	Turn off electrical power at the breaker. Now turn on electrical power to
	(Internal processor).		see if error clears. If error has not cleared, replace Electronic Thermo-
			stat (ET).
		2.	Turn on electrical power at breaker.
E07 with an alert Icon flashing.	Lower thermistor sensor failure.	1.	Turn off electrical power at the breaker.
		2.	Check electrical connections at Electronic Thermostat (ET).
		3.	Replace Lower Thermistor Sensor.
		4.	Turn on electrical power at breaker.
E08 with an alert Icon flashing.	Energy Smart® Module (ESM)	1.	Turn off electrical power.
	failure.	2.	Check wires at the interface module for damage.
		3.	If this 8 flashes condition continues, replace module (ESM).
		4.	See “Overriding The Interface Module (ESM)” by unplugging from the
			Electronic Thermostat (ET) on page 12. NOTE: Electronic Thermostat
			(ET) will continue to be operate, hot water will still be available.
		5.	Turn on electrical power at breaker.
E09 with an alert Icon flashing.	Electronic Thermostat (ET) error.	1.	Turn off electrical power.
E10		2.	Check wiring at Electronic Thermostat (ET) for damage.
		3.	Turn on electrical power at breaker.
E11		4.	If this code flashes condition continues, replace the Electronic
E12			Thermostat (ET).

*These instructions are brief and intended as guidance for a qualified person. If you lack the necessary

skills to perform these procedures call 1-877-817-6750 for assistance.

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