What do you do when your tankless water heater stops working?
Tankless water heaters are special kinds of machines that give you hot water whenever you need it, without needing a big tank to hold it. However, like all machines, they can sometimes have issues. This guide will help you understand how to fix some common problems with tankless water heaters. If you find that the problems are too tricky or big for you to fix, you should get help from a professional like KadeCo Inc. in Pensacola, FL.

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ToggleUnderstanding Your Tankless Water Heater
A tankless water heater works a bit differently than traditional water heaters. Instead of storing hot water, it heats water on demand. When you turn on the hot water faucet, the heater springs into action and warms up water as it flows through. This means you never run out of hot water—great for families or anyone who loves long showers!
But sometimes these heaters can break down, and you might need to know how to fix them.
How Does a Tankless Water Heater Work?
When you open the tap for hot water, cold water travels through a pipe into the water heater. A sensor detects water flow and ignites the burner or turns on the electric heating elements, heating the water as it passes through. The heated water then comes out of the tap.
This process keeps going, so you can enjoy a hot shower or wash your dishes with warm water!
Benefits of a Tankless Water Heater
Tankless water heaters have some awesome benefits. Here are a few:
- Endless Hot Water: You won’t have to worry about running out of hot water.
- Energy Efficiency: They usually use less energy than traditional heaters. This can save you money on your energy bills.
- Space Saving: They are smaller and take up less space.
But, just like everything else, they can break. This guide will help you identify and fix common problems.
Common Issues with Tankless Water Heaters
Knowing the common issues can help you figure out what might be wrong with your heater. Here are some typical problems:
No Hot Water
If you turn on your faucet and nothing but cold water comes out, that’s a problem! The heater might not be working.
Possible Causes:
- Power Issues: Check if the heater is plugged in or if there’s a blown fuse.
- Gas Supply: For gas-powered heaters, make sure the gas is turned on.
- Error Codes: Your tankless water heater may have a display that shows error codes that can help identify the problem.
Inconsistent Water Temperature
Sometimes the water gets hot, then cold, then hot again. This is very annoying!
Possible Causes:
- Too Many Outlets Running: If too many hot water taps are open at the same time, the heater can’t keep up.
- Sediment Buildup: Over time, minerals can build up inside the heater, affecting how it works.
Water Leaks
If you see water around your heater, it’s time to take a closer look.
Possible Causes:
- Loose Connections: Check for any loose pipes or fittings.
- Corroded Parts: Look for rust, especially on older heaters. They may need to be replaced.
Basic Troubleshooting Steps
Before calling for help, you can try a few simple things.
Checking Power
- Look at the Power Outlet: Make sure it’s plugged in.
- Check the Breaker: Go to your circuit panel and see if the breaker has tripped.
Checking Gas Supply
For gas water heaters:
- Is the Gas Valve Open? Make sure the valve is in the “on” position.
- Is the Pilot Light On? Check if the pilot light is lit. If it’s off, you’ll need to light it again following the manufacturer’s instructions.
Inspecting for Leaks
- Look Around the Heater: Inspect the area for any visible water.
- Check Nearby Pipes: Look for any signs of dripping or wet spots on the pipes.
If you can’t fix these issues, that’s completely okay!
When to Call a Professional
Some fixes are better left to experts. Here are a few reasons to call KadeCo Inc.:
- Complicated Repairs: If your heater requires part replacement or complicated troubleshooting, it’s best to let professionals handle it.
- Safety Concerns: If you feel unsafe or unsure about working on your heater, call for help.

How KadeCo Inc. Can Help You
If your tankless water heater isn’t working as it should, KadeCo Inc. is the company to call. Based in Pensacola, FL, they can help you with all your HVAC concerns. They started in 1997 and have worked very hard to be known for their honesty and quality work.
Why Choose KadeCo Inc.?
- Honesty Comes First: They put the customer’s needs above everything else.
- No Upselling: KadeCo will not sell you something you do not need. They will only fix things that are truly broken.
- Free Quotes: Before they start working, they give you a free quote. You know exactly what to expect!
Contact KadeCo Inc.
If you need help, you can reach KadeCo Inc. at:
Address: 209 Brandywine Rd, Pensacola, FL 32507
Phone Number: (850) 516-7552
Calling them will help you get your hot water running again!
Regular Maintenance for Tankless Water Heaters
Just like you need to eat healthy and exercise to stay fit, your water heater needs some attention, too! Regular maintenance can help it work better and last longer.
Descaling
Because minerals can build up, it’s important to descale your heater. This means removing the buildup. You can do this every year or so to keep it running well.
Cleaning the Filter
Inside your tankless water heater, there’s a filter that can get dirty over time. Cleaning this will help it work better. Here’s how:
- Turn Off the Water Supply: Find the cold-water valve and close it.
- Remove the Filter: Take out the filter from the heater.
- Clean It Off: Rinse it with water to remove dirt and debris.
- Replace the Filter: Put it back in place and turn the water supply back on.
Annual Check-Up
You can schedule a yearly check-up with a professional like KadeCo. They will look over your heater and fix any small problems before they become big ones.

Tips for Efficient Use of Water Heaters
You can help your tankless water heater work even better with a few tips!
Spread Out Hot Water Usage
Try not to use too many hot water taps at once. If you need to take a shower, wait until the dishwasher is done. This helps keep the water hot.
Adjust Temperature Settings
If your heater is set too high, you can turn it down to save energy. A comfortable temperature is usually around 120°F. This will help prevent burning yourself and reduce energy bills.
Insulate Pipes
Insulating the hot water pipes keeps the water warm as it moves from the heater to the tap. This way, you won’t have to wait as long for hot water.
Conclusion
Your tankless water heater is a fantastic addition to your home, but sometimes it needs a little bit of care. By understanding common problems and how to fix them, you can keep it running smoothly. If things get tricky, remember that KadeCo Inc. is there to help you out.
With their honest work and great service, you can get your hot water back in no time. Keep your heater maintained, and enjoy the endless hot water it provides!
Take care of your tankless water heater, and it will take care of you!




