4 Signs That You Need to Repair or Replace Your Water Heater

Hot water is something that many people take for granted in modern society since it’s always available. In ancient times, taking a warm bath required a natural hot spring or heating a lot of water by hand. Now, all we do is turn a faucet and watch TV until the tub is ready. Since we expect hot water always to be available, it can be extremely inconvenient if your water heater suddenly stops working. Here are four signs that you need to repair or replace your water heater by someone like KD Mechanical.

Lack of Hot Water

The most common sign of a failing water heater is an insufficient amount of hot water being produced. Building owners would notice this issue when their running hot water becomes lukewarm quickly, or when it takes a long time for hot water to reach the faucet. This issue could be caused by something simple, like a buildup of sediment in the tank. The deposit can become a barrier between the heating element and the water and make the water heater work harder in other ways. Having your water heater serviced by KD Mechanical can restore your hot water and prevent costly repairs and replacement.

Discolored or Smelly Water

Since much of the water you use for cooking and cleaning comes from via the water heater, it’s essential that your water heater remains clean. Never ignore discolored water coming from your faucet, as it could be a sign of a severe problem. If rust-colored water comes from your hot water faucet, it indicates the water heater could be rusting. Similarly, cloudy or smelly water can be a sign of mineral deposits at the bottom of your tank. Mineral sediment can clog the drain valve, slow down the heating of your water, and cause the bottom of the tank to overheat. If you see discolored water, it’s a sign that a component will break soon if not repaired or replaced.

Leaking at the Bottom of the Tank

Since it’s an appliance that holds between 30 and 50 gallons of water, you don’t want your water heater leaking. A leaky water heater is a sign of a serious problem that needs to be addressed. Leaks are often the result of rusting and corrosion on the tank. If these problems are fixed, they will grow into more significant leaks and holes. Even small leaks are a sign that your water heater is failing. Rust and corrosion won’t stop without intervention. If you don’t replace the corroded parts or get a new water heater, you’ll eventually end up with a flooded utility room thanks to the rusted-out tank bottom.

Leaking or Faulty Pressure Relief Valve

Allowing your water heater to fail can result in more than cold showers or wet utility rooms. A water heater can fail spectacularly (in a bad way) if the temperature and pressure relief (TPR) valve malfunctions. The TPR valve opens to release pressure buildup in the water heater when the temperature or the pressure get dangerously high, preventing a possible explosion. Mineral deposits from salt, rust, and corrosion can cause a TPR valve to freeze and fail to function. Though it’s rare for it to be this bad, if the TPR valve malfunctions, water in the tank could exceed boiling point, expand into steam, and propel the tank like a rocket through multiple floors. So if you should have your valve checked regularly as part of your annual maintenance for the machine. And have your unit inspected if the valve starts leaking.


Appliances rarely break “suddenly.” People simply miss the warning signs until it’s too late. If issues are caught earlier, you may prevent a water heater from failing or give yourself enough time to replace the unit before it does. If you experience any of the issues we discussed above, KD Mechanical can help. Send us a message online to schedule an appointment for water heater installation, service, and repair.

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