An electric tankless water heater is a powerful, energy-efficient solution for homeowners who want hot water on demand without the bulk of a storage tank. Recently, CB Smith Plumbing completed a maintenance and inspection project in Greer, SC for a customer experiencing reduced water temperature and flow.

We specialize in installing and maintaining water heaters of all types, including modern electric tankless models. Our goal in this project was to help the homeowner restore peak performance and prevent costly repairs down the road through proactive maintenance.

Common Signs Your Tankless Water Heater Needs Maintenance

The homeowner noticed some clear indicators that their system needed attention:

  • Fluctuating water temperature
  • Reduced water pressure
  • Mineral build-up visible at the outlet

These symptoms pointed to mineral scaling and internal residue that often affect electric tankless units, especially in areas with hard water like Greer.

Our Step-by-Step Maintenance Process

  1. Power Disconnection and Safety Check: We shut off the power and water supply to ensure a safe working environment before starting any disassembly.
  2. Flushing the System: Using a descaling solution and a pump, we flushed the heat exchanger to remove calcium and lime deposits. This is a crucial step that homeowners should ideally perform once a year.
  3. Cleaning the Filter Screen: We removed and rinsed the unit’s inlet filter to restore water flow and catch future debris more effectively.
  4. Electrical and Element Inspection: As part of the service, we inspected electrical connections and heating elements for wear and efficiency, ensuring all parts were operating properly.
  5. System Test and Final Check: After reassembling the unit, we ran it through multiple hot water cycles to confirm temperature consistency and pressure output.

Tips for Homeowners

To extend the life of your electric tankless water heater, we recommend:

  • Annual descaling, especially in hard water areas
  • Checking and cleaning filters every 6 months
  • Installing a pre-filter to minimize sediment
  • Scheduling professional maintenance once a year

Why Choose CB Smith Plumbing?

This project is a great reminder that even the most advanced electric tankless water heater requires regular care. At CB Smith Plumbing, we bring local expertise, honest service, and reliable results to every home we visit. Whether you're installing a new unit or maintaining your current one, we’re your go-to team in Greer, SC.


Need help with maintenance or looking to upgrade your system? Learn more about our expert water heaters services and schedule your appointment today.