If your hot water suddenly goes cold, one of the most common and quickest fixes is resetting your water heater. But where is the reset button—and how do you use it safely? This easy guide explains how to locate the reset button on different types of water heaters, what to do when it trips, why it happens, and what tools and products can help prevent future headaches. Whether you have an electric, gas, or tankless model, you’ll find clear steps and troubleshooting tips below.
Quick Answer: Where Is the Reset Button on a Hot Water Heater?
- Electric Water Heaters: The reset button is typically located behind an upper access panel on the side of the tank—look for a red or orange button on the thermostat.
- Gas Water Heaters: Most do not have a reset button. Instead, they have a gas control valve or igniter reset procedure—check your manual.
- Tankless Water Heaters: The reset function is usually a small button or switch on the front control panel or behind the front cover—see your unit’s manual for specifics.
How to Find and Use the Reset Button (Step-by-Step)
- Turn Off Power: For electric heaters, switch off the breaker at your home’s panel to avoid electric shock.
- Remove the Access Panel: On traditional electric tanks, unscrew the upper panel. Carefully pull back the insulation to expose the thermostat.
- Locate the Reset Button: Look for a red or orange button—usually labeled “Reset.” It may be recessed and require a firm press.
- Press the Reset Button: Use your finger or a small tool to firmly press the button. You should feel a click. If it immediately pops out, your heater may have a more serious problem.
- Reassemble and Restore Power: Replace insulation and panel, turn power back on at the breaker, and wait up to an hour for hot water to return.
- For Tankless Heaters: Locate the small reset button or “Power” button on the unit—check your model’s instructions for the exact location and sequence.
- For Gas Heaters: Reset the igniter or control knob per the manufacturer’s procedure—usually involves holding or turning the knob to “Pilot” and pressing the igniter.
Why Does My Water Heater Keep Tripping the Reset Button?
- Overheating: The thermostat senses unsafe temps and shuts off the heating element as a safety measure.
- Faulty Thermostat: A failing thermostat may not regulate temperature correctly, causing frequent trips.
- Bad Heating Element: Broken elements can short or overheat, triggering the reset.
- Wiring or Power Issues: Loose, burnt, or corroded wires can lead to resets for safety.
- Mineral Buildup: Scale on heating elements can cause overheating and reset trips—flush your tank annually.
- Age and Wear: Older units are more prone to safety shutoffs and may need parts or replacement.
Tools & Top Products for Fast Water Heater Repairs
-
Best Multimeter:
AstroAI Digital Multimeter – Quickly checks for live voltage and tests thermostat or element continuity. -
Best Replacement Thermostat:
Camco 07843 Single Element Water Heater Thermostat – Universal fit for most electric tanks. -
Best Element Wrench:
Rheem SP610160 Element Wrench – Makes replacing heating elements fast and leak-free. -
Best Scale Remover:
Flow-Aide System Descaler – Removes mineral deposits that cause overheating and reset trips.
Comparison Table: Water Heater Reset & Repair Tools
| Product | Main Use | Universal? | DIY/Pro | Price Link |
|---|---|---|---|---|
| AstroAI Multimeter | Test power/continuity | Yes | DIY/Pro | View |
| Camco Thermostat | Replace thermostat | Most electric tanks | DIY | View |
| Rheem Element Wrench | Remove elements | Yes | DIY/Pro | View |
| Flow-Aide Descaler | Clean scale/minerals | All brands | DIY | View |
FAQ: Water Heater Reset Button Location & Troubleshooting
- What if my reset button keeps tripping?
Check for faulty thermostat, bad element, wiring issues, or excessive scale. Replace faulty parts as needed. - Is it safe to keep resetting my heater?
If the button trips repeatedly, do not keep resetting. Find and fix the underlying problem to avoid damage or safety risks. - Can I reset a gas water heater?
Gas models rarely have a reset button. Use the control valve/igniter reset steps in your manual. - Where is the reset on a tankless unit?
Most have a small button on the front or behind the cover—refer to your owner’s manual for your exact model. - When should I call a professional?
If you see burned wires, smell gas, have leaking water, or repeated resets, it’s time for expert help.
Conclusion
Finding and using the reset button on your hot water heater is a quick, effective fix for many no-hot-water problems. But if the reset keeps tripping, it’s a sign that deeper issues need attention—don’t ignore it. With a few simple tools and this step-by-step guide, you can diagnose, repair, and restore your hot water safely. For persistent problems, reach out to a licensed plumber or technician for peace of mind and lasting comfort.