No hot water, cold showers, error codes, weak flow, or a tankless unit that will not keep up? Earl's Plumbing repairs and services propane and natural gas tankless water heaters throughout Northern California.
We diagnose the tankless unit first. If repair or maintenance makes sense, we say so. If the unit is too old or parts are not practical, we explain replacement options clearly.
Tankless units are smart, compact, and efficient, but when something is off, the symptoms can show up fast. Cold water has a way of announcing itself like a tiny Arctic marching band.
Ignition failure, gas supply issues, circuit board failure, flow problems, or safety lockouts can shut hot water down.
Temperature swings may come from scale buildup, flow issues, dirty sensors, or a unit that is not keeping up.
Error codes can point to ignition, combustion, venting, sensors, flame rods, fans, water flow, or maintenance needs.
Hard water can restrict flow and reduce heating performance inside the heat exchanger.
We do not walk in assuming you need a new water heater. We inspect the unit, explain what failed, and help you decide what makes sense.
We check the error code, ignition sequence, flame rods, blower fan, venting, water flow, gas or propane supply, heat exchanger condition, and visible signs of scale or leakage.
You get clear repair options before work begins. If cleaning, descaling, or a part replacement makes sense, we tell you. If the unit is too old, we explain why replacement may be smarter.
Depending on the issue, we may descale the system, clean combustion components, replace failed parts, restore flow, correct venting concerns, or recommend replacement when repair is not practical.
After the work, we test hot water operation, check for leaks, verify proper function, and make sure the customer understands what was done and what maintenance to plan for next.
Yes, many tankless water heater problems can be repaired. Common repairable issues include scale buildup, dirty flame rods, ignition problems, dirty blower fans, low flow, venting concerns, and certain error codes. Replacement may be recommended when the unit is very old, parts are unavailable, the heat exchanger has failed, or repair cost no longer makes sense.
Hard water is one of the biggest tankless troublemakers in Northern California. Minerals can build up inside the heat exchanger, reducing flow, lowering efficiency, and creating error-code gremlins inside the unit.
Regular descaling helps clear mineral buildup and is especially important for homes without a water softener or scale-reduction system.
Tankless water heater repair is part plumbing, part combustion, part water quality, and part tiny mechanical orchestra. Here are the usual suspects.
Dirty or worn flame rods can cause ignition problems, flame failure, lockouts, and inconsistent heating. Cleaning or replacement may restore normal operation.
A dirty blower fan or combustion air problem can affect burner performance. We inspect buildup, airflow, venting, and related error-code symptoms.
Low flow, mineral scale, or sensor problems can prevent the tankless unit from activating correctly or maintaining temperature during use.
Older tankless units may eventually experience control board failure. If the unit is very old, we compare repair cost against replacement value.
From maintenance to heat exchangers and control boards, we can repair your tankless water heater.
Good repair advice should not feel like a sales ambush. We help you compare the age, condition, parts, repair cost, and expected life of the unit.
Real feedback from customers who called Earl's Plumbing for tankless diagnosis, service, maintenance, and replacement guidance.
"Weeks ago... brrr cold showers. I called Earl's and requested Nate. Within 30 minutes he had diagnosed the problem to be a blown circuit board. He recommended replacing the whole unit as it is 20 years old. That was on a Friday. He was out Monday with the new unit and had it installed and functioning in 2.5 hours. He tested the hot water function, water pressure, and leaks. Nate is THE best."
"We called Earl's Plumbing to service our tankless hot water heater. With the hard water in our area this is important! The person from Earl's was professional, told me what would be done, the cost, and asked if I wanted the service done today. He was efficient, a nice guy, and delivered as promised. I am very happy and will call back next year!"
Tankless repair often connects with maintenance, replacement, hard water protection, gas line work, and water heater installation.
Upgrade to propane or natural gas tankless when repair no longer makes sense.
Compare tank, tankless, propane, and natural gas replacement options.
No hot water, leaking tank, pilot issues, or inconsistent temperatures.
Gas and propane line evaluation for tankless operation.
Protect tankless heat exchangers from hard water scale buildup.
Better drinking water options for homes with mineral-heavy water.
Find hidden leaks near water heater lines and mechanical areas.
Full-service plumbing from Earl's Plumbing across Northern California.
No service call fee. We diagnose the issue and explain repair options before work begins.
No hot water? Call directly at (530) 343-0330 for faster scheduling.
Common questions homeowners ask when a tankless water heater stops working, needs descaling, or starts throwing error codes.