Generic electric · Water heater
No error code — reset button tripped High-limit (ECO) switch tripped
What this code means
Electric tank water heaters generally don't display digital codes; instead a red reset button on the upper thermostat pops out when the water gets too hot.
Most likely causes
- Failing upper thermostat
- Sediment causing a heating element to run hotter than expected
- Genuinely defective high-limit switch
What to try first
Turn off power at the breaker, remove the upper access panel, and press the red reset button firmly. If it trips again shortly after, don't keep resetting it.
Safety first: stop using the appliance and shut off its gas or power until it has been inspected — this fault category is associated with fire or gas risk.
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What does Generic electric error code No error code — reset button tripped mean?
High-limit (ECO) switch tripped. Electric tank water heaters generally don't display digital codes; instead a red reset button on the upper thermostat pops out when the water gets too hot.
Can I fix Generic electric code No error code — reset button tripped myself?
No — stop using the appliance and shut off its gas or power until it has been inspected. This fault category is associated with fire or gas risk.
What causes Generic electric code No error code — reset button tripped?
The most common causes are: failing upper thermostat; sediment causing a heating element to run hotter than expected; genuinely defective high-limit switch.
Other water heater brands: Rheem · Ruud · Rinnai · Navien · Noritz · Takagi · A.O. Smith · Bradford White · State / American · Generic tankless
This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.