No Hot Water in Falls Church? Signs Your Tankless Water Heater Needs Repair

No Hot Water in Falls Church? Signs Your Tankless Water Heater Needs Repair

Written by Dennis Rollins, Owner of Veteran Plumbing Services – Falls Church, VA

If you’ve been hit with cold water when you were expecting a nice hot shower, I know how frustrating that can be.

I’m Dennis Rollins, a U.S. Navy Veteran and owner of Veteran Plumbing Services right here in Falls Church, VA.

When your tankless water heater stops working the way it should, it usually gives you a few warning signs—if you know what to look for.

Here’s how to tell if your tankless water heater needs repair, and what to do next.

1. You’re Out of Hot Water Faster Than Usual

One of the first red flags is when your hot water cuts off too quickly.

Tankless systems are designed to provide hot water on demand.

If it runs cold after just a few minutes, there’s likely an issue with the heating element, gas flow, or sensor.

2. Your Water Temperature Keeps Fluctuating

Hot, cold, hot again?

That’s not how a tankless system is supposed to work.

If your water temperature keeps changing while you’re using it, you may have a clogged filter, mineral buildup, or a faulty thermostat.

3. You See an Error Code on the Unit

Most modern tankless heaters will show an error code when something’s off.

You don’t have to decode it yourself. If you see any numbers flashing or unusual lights, give me a call—I’ll take it from there.

4. You Hear Strange Noises

Clicking, popping, or banging sounds coming from your water heater?

That’s usually caused by scale buildup inside the system.

The longer it sits there, the harder it is on your heater and your water pressure.

5. The Unit Keeps Shutting Off

If your tankless heater suddenly powers off during use, it’s a sign that something more serious is wrong.

It could be an issue with the flame sensor, the venting, or even low water pressure.

Either way, that’s not something to ignore.

What Should You Do?

I recommend calling a licensed, local plumber with experience in tankless systems.

That’s precisely what we do at Veteran Plumbing Services.

We’ll inspect the unit, identify the issue, and have it fixed quickly, usually on the same day.

Why Choose Veteran Plumbing Services?

I bring the same level of discipline and attention to detail I had in the Navy into every home I visit.

I don’t cut corners, and I show up when I say I will.

Whether it’s a quick fix or a full replacement, I make sure your home gets the hot water it needs, without the stress.

Tired of cold showers in Falls Church?


📞 Call Veteran Plumbing Services today at 703-791-1339
I’m Dennis Rollins. I served my country, and now I’m here to help you protect your home.

📞 Schedule online Veteran Plumbing Services Anytime — Day or Night

Service Areas: Fairfax County | Prince William County | Loudoun County | Stafford County | Fauquier County | Culpeper County | Blog | Privacy Policy

Veteran Plumbing Services

12102 Greenway Ct Apt. 101 Fairfax VA 22033

800 W Broad St. #46, Falls Church, VA 22046

by HILARTECH, LLC 2025

© All Rights Reserved

Service Areas: Fairfax County | Prince William County | Loudoun County | Stafford County | Fauquier County | Culpeper County | Blog | Privacy Policy

Veteran Plumbing Services

12102 Greenway Ct Apt. 101 Fairfax VA 22033

800 W Broad St. #46, Falls Church, VA 22046

by HILARTECH, LLC 2025

© All Rights Reserved