Common Water Heater Problems We Fix
A water heater rarely fails at a convenient hour. One morning the shower runs cold, or the utility room smells like rust, or something in the tank starts knocking.
At 1st Action Plumbing, Heating & Air, we diagnose the actual cause before we quote a repair, so you're not paying twice to fix the same thing.
We're family owned, based in Loveland, and licensed under Master Plumber MP.00189768 and plumbing contractor registration PC.0003852.
Thanks to more than two decades of combined experience with these systems, our team can tackle just about any hot water heater issue.
The calls we get most often:
- No hot water, or not enough of it. Usually a failed heating element, a thermostat that's drifted, a tripped high-limit switch, or a pilot and ignition problem on a gas unit.
- Rusty colored water. Often a spent anode rod, sometimes a tank that's corroding from the inside.
- Low hot water pressure. Sediment or scale restricting flow at the outlet or in the supply lines.
- Smelly hot water. Bacteria reacting with the anode rod, which is fixable and not a reason to replace the tank.
- Scalding water. A thermostat reading wrong or set too high, or a failed mixing valve.
- Reheat lags. The tank recovers slowly after heavy use, typically from sediment insulating the burner or element.
- Strange noises. Popping and rumbling almost always means sediment buildup on the tank floor.
If any of these sound like your house, it's worth a call before the problem grows into a leak.
Repair or Replace?
Not every failing tank is worth saving. We lay both options out side by side and let you choose. Replacement usually makes more sense when:
- The tank is past 10 to 12 years old and the repair involves a major component.
- The tank itself is leaking. A corroded tank can't be patched, only replaced.
- You're facing repeated repairs that are starting to add up against the cost of a new unit.
- Your household has outgrown the tank, and a larger unit or an on-demand system would fit better.
If replacement is the answer, we'll walk you through both tank and tankless options and what each one would take to install in your specific house.
Safety Comes First
A gas water heater is combustion equipment, and it deserves the same respect as a furnace. Gas lines should be installed and repaired by a professional, never by guesswork.
- If you smell gas, leave the house, then call 911 and your gas utility. Don't operate switches or the appliance.
- If the temperature and pressure relief valve is discharging, shut off the heat source and call us. That valve is the last line of defense against tank pressure.
- Water pooling at the base of the tank means the tank is failing. Shut off the supply and the gas or breaker, then call.
- Don't cap or plug a relief valve line under any circumstances.
Standing water around a water heater can also point somewhere else entirely, which is why we use leak detection equipment when the source isn't obvious.
Quick Checks Before You Call
A few things you can safely confirm, which help us diagnose faster:
- On an electric unit, check the breaker and look for a tripped reset button on the upper thermostat.
- On a gas unit, confirm the gas valve is on and the pilot or igniter is working, if the manufacturer says it's safe to check.
- Note the age of the tank from the serial number sticker, along with the model number.
- Note whether the problem is hot water only, or both hot and cold, which tells us a lot right away.
Tell us what you found when you call. Photos and notes speed everything up.
Why Homeowners Trust 1st Action
- Family owned and Northern Colorado local, serving the Front Range since 2018
- Licensed, insured technicians who explain the problem in plain language
- Upfront pricing you approve before work starts
- Named "Best Plumber in Loveland, CO" by ThisOldHouse.com
- A 4.9 star average across more than 600 reviews
You can read more about our team if you want to know who's showing up at your door.
Ready to Get the Hot Water Back?
Water heater problems don't improve with time, and a failing tank tends to announce itself before it floods a utility room. Call 1st Action Plumbing, Heating & Air for tank water heater repair in Northern Colorado and we'll get it handled right the first time. We serve Loveland, Longmont, Greeley, Estes Park, Windsor, and communities in between, including Fort Collins homeowners. While we're out, we can look at any other plumbing repair you've been putting off, or clear a slow drain before it backs up on you. Book your free estimate online and we'll get you scheduled.