Tankless Water Heater Repair in Bloomington, IL – Solving Tankless Water Heating Problems

Recently a Bloomington, IL homeowner reached out to Sunkel Plumbing via text, they were frustrated that their Navien tankless water heater wasn’t producing enough hot water, was displaying multiple error codes, and going into lockout at random times.

After our technician arrived on site, a full diagnostic revealed problems with the gas valve, dual venturi, and flame sensor — critical components that ensure proper combustion and water temperature regulation. These parts had degraded, causing the unit to underperform and trigger system errors.

We contacted Navien technical support to order genuine replacement parts, and once they arrived, our team promptly returned to complete the repair. The new components were installed, calibrated, and tested to confirm that the heater was functioning efficiently and safely.

After the repair, the homeowner’s hot water was fully restored, and the system ran smoothly with no further error codes. We also provided maintenance tips to help prevent future issues and keep their Navien operating at peak efficiency year-round.

Professional Tankless Water Heater Service in Bloomington, IL

If your Navien or other tankless water heater is showing error codes or struggling to keep up with demand, Sunkel Plumbing can help. Our certified technicians are experienced in diagnosing and repairing high-efficiency water heating systems throughout the Bloomington–Normal area.

✅ Fast and reliable repairs

✅ Genuine replacement parts

✅ Expert diagnostics and maintenance

📞 Call or text Sunkel Plumbing today to schedule tankless water heater service in Bloomington, IL and surrounding areas.

And if you still have a traditional water heater, you may want to consider upgrading to a tankless water heating system.

Why Upgrade to a Tankless Water Heater?

1. Endless Hot Water: No more worrying about running out of hot water during showers or laundry cycles.

2. Energy Savings: Tankless systems only heat water when needed, reducing energy costs by up to 30%.

3. Space-Saving Design: Free up room in your home with a sleek, wall-mounted unit.

4. Longer Lifespan: Tankless water heaters last nearly twice as long as traditional tanks.

5. Eco-Friendly: Less energy waste means a reduced carbon footprint.

Ready to Make the Switch?

If you’re tired of high energy bills and limited hot water, a tankless water heater might be the perfect upgrade for your home. Contact Sunkel Plumbing today for a consultation, and let’s discuss how we can bring efficiency and comfort to your household!

Location: Bloomington, IL