How to Reset Your Water Heater: A Twin Cities Homeowner’s Guide

Reliable hot water is non-negotiable during freezing Minnesota weather. When it shuts down, knowing how to reset your water heater can mean the difference between bursting pipes and a pleasant winter.

A reset can restore hot water after a one-time interruption, but if the reset button trips again or the water heater repeatedly shuts down, you need a professional diagnosis. This guide covers water heater reset tips for every system type, when not to reset, and who to call for professional service.

Safety First: When You Should Not Reset the Water Heater

Water heaters combine electricity, gas, pressure, and very hot water. Homeowners should stop troubleshooting when signs point to a serious problem. Contact a professional if you notice:

• A water heater leak or rusted-through areas.
• Smoke, burning odors, visible scorch marks, or a breaker that repeatedly trips.
• A carbon monoxide alarm activation or a damaged vent pipe.
• A bulging tank, excessive pressure-relief-valve discharge, or loud unusual noises.

Water near electrical components may require professional water heater services, and depending on the issue, you may also need to turn the water heater off before service. If you smell gas, leave the home immediately and call 911 or the gas utility from a safe location.

Identify Your Water Heater Type Before You Reset It

The correct procedure depends on the fuel source and the type of water heater. These are the three common types in residential Minnesota homes:

• Electric Tank Water Heater: A large tank with electrical wiring/conduit and no gas line or exhaust flue. It often has one or two access panels.
• Gas Tank Water Heater: A large tank with a gas supply line and vent/flue pipe. It may have a pilot light, status light, and gas control dial near the bottom.
• Tankless Water Heater: A wall-mounted unit with a digital display or control panel. There is no large storage tank.

Regardless of type, the water heater’s manufacturer label is the homeowner’s first source for model-specific reset instructions.

How to Reset an Electric Water Heater

These steps are for a conventional electric storage-tank water heater with a high-limit reset button. Never remove wires, test live voltage, replace heating elements, or reset the button repeatedly.

Here’s what to do:

1. Turn off power at the electrical panel.
2. Remove the upper thermostat access panel. You may need to pull the insulation aside. If you’re unfamiliar with the unit or its components, contact a professional who handles water heater installation and service.
3. Find the red reset button near the upper thermostat and press it firmly once. You may hear or feel a click.
4. Replace the insulation and access panel securely.
5. Turn the breaker back on and allow time for the tank to reheat before testing hot water. It takes about 60-80 minutes to reheat fully.

If the reset button will not stay engaged, trips again, or the breaker trips again, turn off the power and call a licensed professional.

How to Reset a Gas Water Heater

Some newer gas water heaters have electronic ignition or model-specific thermal switches, but many units still require manual relighting. Here’s how:

1. Turn the gas control knob to OFF.
2. Wait at least five minutes for any residual gas to dissipate.
3. If you smell gas, stop immediately, leave the area, and call the gas utility or emergency services.
4. Turn the control to PILOT and follow the exact relighting instructions printed on the unit. This usually involves pressing the igniter button.
5. Once the pilot is stable, turn the dial to ON and allow the system time to heat water.

If the pilot will not light, will not stay lit, or status lights show an error, schedule professional water heater repair. Do not hold the ignite button down for longer than a few seconds. You are letting gas into your home.

How to Reset a Tankless Water Heater

Tankless water heaters commonly use digital control panels and error codes, and reset procedures vary by manufacturer and model. Check for simple external issues, such as a tripped electrical breaker or a closed water/gas shutoff valve. If you find none, then initiate a reset.

1. Check the display for an error code and write it down.
2. Consult the unit’s manual or manufacturer support documentation for the code and approved reset procedure.

Repeated tankless error codes can indicate venting, ignition, flame-sensing, scale buildup, condensate, gas-supply, or electrical issues that require a technician.

Why Does a Water Heater Need to Be Reset?

Resets are usually a protective response when your heater prevents an issue, not a sign you need routine maintenance. Typically, a reset is triggered by:

• A one-time power outage, electrical surge, or tripped breaker.
• An electric water heater overheating because of a thermostat or heating-element problem.
• Restricted airflow, venting concerns, or a thermal-switch trip on certain gas units.
• A pilot-light outage, ignition failure, or natural gas-supply interruption.
• Sediment buildup that contributes to inefficient or abnormal system operation and may require draining a water heater.
• Tankless error codes related to maintenance needs or component faults.

Never ignore recurring resets. They may signal that you need a water heater replacement. If replacement is necessary, the right water heater size depends on your household’s hot water demand.

When to Call Total Comfort for Water Heater Repair

Total Comfort provides professional water heater installation, maintenance, and repair for Twin Cities communities. Call our expert technicians when your water heater is losing energy efficiency or constantly resetting.

If resetting your water heater doesn't restore reliable hot water, schedule an appointment online or call Total Comfort today for a professional diagnosis and repair. Replace a failing heating element with a high efficiency water heater today.