Counsil Plumbing | Tankless Water Heater Repair | South Bay Area
Tankless water heaters are known for delivering energy efficiency, space savings, and endless hot water on demand. But like any appliance, they aren’t immune to wear and tear. Over time, you may encounter performance issues that require expert attention.
At Counsil Plumbing, we’ve helped South Bay homeowners keep their tankless systems running smoothly for over 30 years. Whether you live in Saratoga, Los Gatos, Sunnyvale, or Campbell, we’re here with reliable tankless water heater repair and maintenance services—backed by our 100% satisfaction guarantee.
Here are some of the most common issues tankless water heater owners face—and how our team can help.
1. The “Cold Water Sandwich”
You hop in the shower and enjoy hot water, only to be blasted with a sudden burst of cold before the warmth returns. This is called the “cold water sandwich” effect. It’s a common issue when hot water is used in quick succession, as the system needs a moment to reignite. While it’s not a malfunction, we can fine-tune your system’s flow rate or suggest setup improvements to reduce the occurrence.
2. Low Water Pressure or Flow Rate
If your tankless system isn’t delivering enough pressure or water volume, the cause may be clogged filters, mineral buildup, or an installation that isn’t properly sized for your household’s needs. Our licensed plumbers can inspect the unit, clean the filters, and assess whether adjustments or upgrades are needed to improve performance.
3. Mineral and Scale Buildup
Homes in the South Bay often deal with hard water, which leads to mineral buildup inside tankless systems, especially around the heat exchanger. Over time, this scaling can reduce efficiency and shorten the lifespan of your heater. Counsil Plumbing offers professional descaling services that safely flush the unit and restore optimal function.
4. System Overload
If you’re running multiple hot water fixtures at once and the system shuts down or struggles to keep up, you may be overloading the unit. This happens when the water heater isn’t sized appropriately for the number of simultaneous users. Our team can help evaluate your home’s hot water demands and recommend practical solutions—whether that’s staggering usage or upgrading your system.
5. Ignition or Flame Failure
If your tankless water heater suddenly stops producing hot water, it could be due to ignition failure, dirty flame sensors, or venting issues. These problems often generate error codes on your unit’s display. Our technicians are trained to quickly diagnose and fix these issues, ensuring safe operation and restoring your hot water.
6. Error Codes and Sudden Shutdowns
Tankless systems are equipped with digital displays that help identify problems, but interpreting the codes can be confusing. Whether it’s an overheating alert or a vent blockage, Counsil Plumbing can decode and correct the issue, often on the same day.
Expert Help from Counsil Plumbing
With 24/7 emergency availability, same-day appointments, and a team of licensed professionals, Counsil Plumbing is your trusted source for tankless water heater repair and maintenance in the South Bay Area. We service all major brands and use only high-quality materials and parts.
If your tankless water heater isn’t performing as it should, call Counsil Plumbing today at 408-272-2272. We’ll restore your hot water—and your peace of mind.
Counsil Plumbing—Where Quality Counts.