Expert Tankless Water Heater Repair Services in the Bay Area and Sacramento

Tankless Water Heater Repair FAQ

• What are the most common signs that my tankless water heater needs repair?

  The most common signs are inconsistent water temperature (hot/cold cycling), error codes displayed on the unit, low water pressure (often due to sediment buildup), or the unit failing to ignite when a hot water tap is opened.

• Why is professional repair essential for a tankless unit?

  Tankless units are complex and often involve high-voltage electricity or gas lines. Professional repair is essential for safety (especially to prevent gas leaks or CO hazards) and to ensure the repair is done correctly, which is required to maintain the manufacturer’s warranty.

• Can sediment buildup cause my tankless water heater to fail?

  Yes. Sediment and mineral buildup in the heat exchanger is the number one cause of tankless water heater failure. It restricts water flow, reduces efficiency, and can cause the unit to overheat and shut down. This is why annual descaling (maintenance) is critical.

• How long does a typical tankless water heater repair take?

  Most common repairs, such as replacing a sensor or a flow switch, can be completed in 1 to 3 hours. Repairs involving extensive descaling or complex component replacement may take longer, but our goal is always to restore hot water service the same day.

• Is it better to repair or replace a broken tankless water heater?

  The decision depends on the unit’s age and the cost of the repair. If the unit is under 10 years old and the repair cost is less than 50% of a new unit, repair is usually the best option. If the unit is over 15 years old or the heat exchanger is cracked, replacement is typically the more economical long-term choice.