The Electronic Thermostat

IMPORTANT: The Energy Smart® Module (ESM) must be removed before attempting to access the thermostat. NOTE: for the Electronic Thermostat (ET) changes to re- main in effect the Energy Smart® Module (ESM) must not be reconnected, also read the “Water Temperature Regu- lation” under the “Operating Your Water Heater” section. If the instructions are not clear, contact a qualified person.

The Energy Smart® Module (ESM) is intended to serve as the primary interface for operating the water heater; however, the Electronic Thermostat (ET) may control the water heater in the absence of the Energy Smart® Module (ESM).

The Electronic Thermostat consists of an electronics box that contains a low voltage power supply, the thermostat set point knob, relays to switch between the upper and lower heating elements, one control thermistor, a connec- tor for the lower element control thermistor, microelectron- ics to convert the thermistor signals and perform switch- ing and other logic functions, and a connector to tie the Electronic Thermostat (ET) to the Energy Smart® Module (ESM) located on the front of the water heater jacket. The majority of the self-diagnostics are located in the Electronic Thermostat (ET), including the dry-fire protection intelli- gence. The thermostat circuit is designed so that when the upper heating element calls for heat, the power is directed to that element even if the lower element is also calling for heat.

Diagnostic LED Light

The Green/Red LED light indicates the status of the elec- tronic thermostat (See Figure 10A).

•Green LED will signal normal operation. The green LED will blink 2 times per second to indicate that power is applied to the upper heating element and at a faster rate (4 times per second) to indicate that the lower heating ele- ment is powered.

•Red LED will flash error codes. If a fault is detected by the electronic thermostat, the LED light indicator will use the red LED to indicate the fault detected. The flash code sequence is to consist of 1/2 second flashes of the red LED each separated by a 1/2 second off period.

The number of flashes indicates the fault code number. (See diagnostic code chart section in this manual).

After the last 1/2 second “on” period, the LED will remain off until a total of 5 seconds has elapsed for the fault in- dication cycle (there is a 5 seconds delay before the fault flash pattern repeats). After the 5 seconds are completed, the fault indication cycle is repeated starting with the first 1/2 second-flash. The flash sequence will be repeated as long as the fault remains. Only one fault can be declared at a time. NOTE: the green LED is turned off when a fault code is being displayed, even though the heater may be operating in limp mode with an element on. See diagnos- tic code chart section in this manual.

Overriding The Energy Smart® Module (ESM)

If the Energy Smart® Module (ESM) is not working, simply unplug the interface module and turn the set point knob on the Electronic Thermostat (ET) to the desired tempera- ture (See Figures 10A & 10B). To replace a broken or damaged ESM module, see page 22 for ordering informa-

tion.12

Electrical Shock Hazard

Do not remove the plactic guard from over wiring.

Do not touch electrical wiring.

Failure to do so can result in death or electrical shock.

Figure 10A

Electronic Thermostat (ET)

ECO Reset Button Low Voltage Wiring

Diagnostic LED Light

Setpoint

Knob

Upper Element

Plastic Guard

(Remove Only After Power Is Turned Off When Replacing Element, see page 16 )

Figure 10B

Electronic Thermostat (ET)

Energy Smart®

Module (ESM)

Electronic

Thermostat (ET)

Thermostat

Setpoint Knob

Thermistor

Wire Harness

Junction Box

Wiring Harness

NOTE: Smart Grid will be disabled when the Energy Smart® Module (ESM) is disconnected from the junction box wiring harness.

Page 11 Page 13
Page 12
Image 12
Whirlpool 318686-000 Electronic Thermostat, Diagnostic LED Light, Overriding The Energy Smart Module ESM
Page 11 Page 13

318686-000 specifications

The Whirlpool 318686-000 is a highly regarded appliance part that plays an essential role in modern kitchen functionality. Designed with the user in mind, it boasts several features and technologies that enhance its performance and reliability.

One of the primary characteristics of the Whirlpool 318686-000 is its compatibility with a wide range of Whirlpool ovens and ranges, making it a versatile choice for many households. This part is commonly known as the surface element, which provides the necessary heat for cooking a variety of dishes. Its design ensures even heat distribution, which is vital for achieving perfectly cooked meals every time.

The Whirlpool 318686-000 is engineered with durability in mind. Constructed from high-quality materials, this part is built to withstand the daily stresses of cooking while maintaining its performance. This longevity translates into reduced replacement costs and increased satisfaction for users, making it an economical choice for homeowners.

In terms of safety, the Whirlpool 318686-000 features advanced technology to minimize risks associated with cooking. It typically includes integrated thermal protection, which helps prevent overheating. This feature not only prolongs the lifespan of the component but also ensures a safer cooking environment for users.

Installation of the Whirlpool 318686-000 is designed to be user-friendly. Homeowners can replace this part without needing specialized tools or professional assistance, allowing for convenient maintenance. This ease of installation is especially appealing for those who prefer a DIY approach to home repairs.

Efficiency is another hallmark of the Whirlpool 318686-000. The design optimizes energy consumption, allowing users to cook efficiently while saving on utility costs. The element heats up quickly, reducing wait times and enhancing overall cooking experiences.

Whirlpool is a brand synonymous with innovation, and the 318686-000 reflects this commitment to excellence. The part combines modern technology with practical design, ensuring it meets the needs of contemporary cooking. With its blend of durability, safety, efficiency, and ease of use, the Whirlpool 318686-000 is an essential addition to any kitchen, providing reliable performance that cooks can depend on for years to come. Whether replacing a worn-out part or upgrading to enhance cooking capabilities, this surface element is a top choice for Whirlpool appliance users.
Top Page Image Contents