No, tankless water heaters generally do not feature a physical reset button. Instead, tankless units rely on sophisticated digital computer control boards and electronic sensors. If your tankless water heater encounters an error code or locks out due to a safety fault, you must reset the system by turning off its dedicated power switch or unplugging the power cord for 30 to 60 seconds. Verification: Check the digital display panel after power cycling to ensure error codes have cleared.
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