Bradford White Water Heater Error Code 59

Error code 59 means the water heater's control board has detected that the incoming line voltage is either too low or too high for safe operation. The unit shuts down to prevent damage to its components. This fault points to an issue with the electrical supply rather than the water heater's internal components in most cases. Checking the voltage at the unit with a multimeter is the appropriate starting point.

Yes, voltage irregularities are a legitimate safety concern for both the appliance and the home's electrical system. High voltage can damage wiring insulation and shorten component life, while low voltage can cause components to overheat from excessive current draw. The water heater's shutdown is a protective response, and the underlying electrical issue should be resolved before restarting the unit.

A reset may temporarily clear the fault and allow the unit to restart, but the code will return if the underlying voltage problem has not been corrected. Repeatedly resetting without addressing the root cause can expose the unit to further electrical stress. The fault should be treated as a warning to investigate the power supply before resuming normal operation.

Some causes, such as a tripped breaker or a loose accessible wiring connection, can be addressed by a knowledgeable homeowner. However, work inside the breaker panel or at the unit's terminal block involves live electrical components and carries serious safety risks. If you are not comfortable working with 240V electrical systems, a licensed electrician or appliance technician should handle the diagnosis and repair.

Repair costs vary widely depending on the cause. If the issue is a loose connection, a service call from an electrician may cost between $75 and $200. Replacing a circuit breaker typically runs between $150 and $350 including labor. If the control board is faulty, parts and labor combined can range from $300 to $600 or more depending on the model and local labor rates.