How to Reset an Electric Water Heater

A quick reset will have your water heater working again in no time.

An electric water heater that has stopped heating properly can make a shower or bath a dismal experience. If your water heater has suddenly stopped working, don't start looking for a good repair person just yet. The problem is most likely caused by the heater's thermal safety switch, which disrupts power to the heating mechanisms when the water heats above 170 degrees Fahrenheit. The thermal safety switch can be reset with the touch of a button.

Instructions

1. Look for a rectangular box mounted on the side of the water heater; this is your heater's control circuit panel.

2. Find the large red button at the center of the control circuit panel. This button is used to reset the water heater's thermal safety switch, sometimes called the high-limit temperature switch.

3. Press and hold the red reset button on the control circuit panel for three to five seconds to reset the water heater. Wait up to 24 hours for the water heater to resume normal operation.

Tips & Warnings

• If resetting your electric water heater does not solve the problem, or if the problem recurs, it might be more than a tripped thermal safety switch. Check the water heater's heating elements and heater controls or contact a repair person to schedule an appointment for service.

• Follow all safety precautions when attempting to troubleshoot or repair home appliances.

References

• American Water Heater: Standard Electric Water Heaters
• American Water Heater: Residential Electric Water Heater Guide
• Whirlpool: Energy Smart Electric Water Heater

Resources

• American Water Heater: Product Support