A Bradford White electric water heater has two high-limit (ECO) reset buttons, not one: one behind the upper access panel and one behind the lower. If you’re only checking one, you’re checking half the unit. Here’s where each lives and the safe order to check them.
Safety box: Turn off power to the water heater at the breaker before removing either access panel; don’t trust the breaker label alone if you’re not sure it’s correct. Once the panel is open and before touching anything past the insulation, check for voltage across the thermostat terminals with a multimeter and confirm it reads zero. Both panels expose 240V (or 208V/277V on some commercial units) line-voltage terminals once the insulation is pulled back, and Bradford White’s own service manual puts a high-voltage warning on every procedure that opens one.
Where the two reset buttons actually are
Most Bradford White electric models have two access panels stacked on the front of the tank: one near the top of the unit (upper thermostat) and one lower down, usually a foot or two above the base (lower thermostat). Behind each panel, once you remove the insulation and the plastic thermostat guard, you’ll find a surface-mounted thermostat with a small red reset button built into it. This is the manual ECO (Emergency Cut-Off / high-limit) reset, and each thermostat has its own, independent of the other.
Most common cause: the upper reset tripped. The upper element handles the fastest, most frequent demand (it’s what recovers first after a shower), so its ECO trips more often than the lower one. Start there.
How to reset it (do this in order)
- Kill power at the breaker. Flip off the breaker feeding the water heater. Don’t skip this: the terminals behind the panel are line voltage.
- Open the upper access panel first. Remove the screws holding the cover, then gently pull back the insulation and the plastic guard underneath it to expose the upper thermostat.
- Find the red reset button. It’s a small button set into the thermostat body, usually labeled “Reset” or “ECO.” It sits separately from the temperature dial, so don’t confuse the two.
- Press it once, firmly, until it clicks. If it doesn’t click or immediately pops back out, the water in the tank is still above the switch’s cutout temperature (or there’s an active fault). Don’t force it repeatedly; see “If it trips again” below.
- Reassemble the upper panel, restore power at the breaker, and give the unit 20–30 minutes to see if hot water returns.
- If that didn’t fix it, repeat the same process on the lower access panel and lower thermostat. No hot water at all after a reset, or hot water that runs out fast, often means the problem is on the lower element/thermostat instead.
If the reset button won’t hold, or trips again right away
A reset that won’t stay in, or trips again within minutes of a successful reset, is not a reset-button problem. It’s the button doing its job because something else is actually wrong. Bradford White’s own troubleshooting guidance points to two most likely causes at this stage:
- A grounded or shorted heating element. This can let an element run continuously with no way to shut off except the ECO, which is why it keeps tripping. An element needs an ohm-meter check across its terminals and to ground; this isn’t a visual inspection.
- A thermostat that isn’t flush against the tank. These thermostats sense temperature through surface contact with the tank; if the mounting bracket has slipped or the strap isn’t tight, the thermostat reads wrong and can trip the ECO on a tank that isn’t actually overheated.
Both of these require opening the panel with a multimeter, not just a screwdriver. This is where DIY troubleshooting ends: if the reset won’t hold after one clean attempt on each thermostat, call a licensed plumber or electrician rather than repeatedly resetting it. Repeatedly forcing a tripped ECO on a genuinely overheating tank is a real hazard, not just an inconvenience.
FAQ
How many reset buttons does a Bradford White electric water heater have? Two. One is on the upper thermostat, one is on the lower thermostat, and they trip independently of each other.
Where exactly are the access panels? Look for two rectangular panels on the front of the tank, held on with screws: one near the top third of the unit, one lower down near the bottom third. Each opens to its own thermostat.
Can I just keep pressing the reset button until it stays in? No. If it won’t hold after one firm press, that’s the switch correctly detecting a real problem (overheating, a shorted element, or a misaligned thermostat). Repeated forcing doesn’t fix the cause and can mask a genuine overheat condition.
Does resetting the button mean the heating element is bad? Not necessarily. A single trip after a power blip or a very hot setting can be a one-time event. It’s a sign of a real problem only when it happens repeatedly or won’t hold at all.
Is this the same button as the temperature dial? No. The temperature dial sets your desired water temperature; the reset button is a separate safety switch that only trips when the water gets dangerously hot, regardless of what the dial is set to.
