Signs That Your Propane Tank Needs Maintenance

What You’ll Learn

How do I know if my propane tank needs maintenance?

Your propane tank gives clear warning signs when something’s wrong: yellow or orange flames instead of blue, pilot lights that won’t stay lit, a rotten egg smell, visible rust, inconsistent fuel levels, or unusual hissing sounds.

Recognizing these signs early can prevent a small issue from becoming a dangerous—and expensive—problem.

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This blog was updated February 2026.

Your propane tank sits outside, silently doing its job year after year.

You barely think about it—until the furnace starts acting up or the stove takes forever to light.

Most propane tank problems don’t happen overnight. They send small warnings first.

Knowing what to look for means you can catch issues early, before they leave you without heat or hot water.

Here are 10 signs your propane tank may need maintenance.

1. The Burner Flames Are Any Color But Blue

A blue flame from an appliance that uses propane gas indicates everything is fine. However, you may have a damaged propane tank if you notice yellow or orange flames instead of blue flames.

Be very careful when examining flames.

If only one appliance has a yellow or orange flame, that particular appliance is the problem, not the propane tank.

A blue flame from an appliance that uses propane gas indicates everything is fine. However, you may have a damaged propane tank if you notice yellow or orange flames instead of blue flames.

However, be very careful when examining flames. If only one appliance has a yellow or orange flame, that particular appliance is the problem, not the propane tank.

Nevertheless, if you notice that all the burners in your house are giving off yellow flames, it indicates a broken propane tank. One explanation for this is a leak in the tank, causing the propane to exit the system before entering the unit for combustion. This results in a yellow flame instead of a blue one.

Another reason could be that the damaged propane tank is restricting propane from flowing through the line.

Whatever your gas tank problem, don’t attempt to fix it yourself unless you’re an expert. Always contact a professional propane maintenance company to have your tank inspected and advise on the best course of action.

2. The Furnace’s Pilot Lights Can’t Stay Lit

A properly functioning propane tank provides a continuous supply of sufficient fuel to the stove pilot light. However, if the pilot light does not come on all the time or goes out every time, there may be a problem with the propane tank.

This indicates the stove works appropriately, as the pilot light constantly flashes.

Most propane tanks have a safety feature that shuts off gas flow in case of a leak or other problem with the tank. Additionally, if the propane tank is the cause of your lighting problem, you’ll find that other pilot lights are also affected.

This includes lighting stoves, water heaters, and other appliances that use propane gas to produce flames.

3. There’s an Unusual Odor

Propane has no smell. However, companies and manufacturers add ethyl mercaptan to propane to give it a distinctive odor. This makes it very easy to spot a gas leak in your home.

So, if you walk by a propane tank and smell rotten eggs, it’s a telltale sign of a propane leak problem.

4. Your Tank Is Rusty

It’s not uncommon for your propane tank to be a little rusty.

However, if rust is eating into your tank, that might be a problem.

Rust can thin your tank walls and erode the material. This creates holes for the propane to escape into the atmosphere.

So, if your tank is rusting and thinning, consider replacing your propane tank.

Be very careful when handling rusty propane tanks.

5. Inconsistent Fuel Levels

An underlying issue may be present if you notice that the propane tank’s fuel level fluctuates or you run out of fuel quickly.

Numerous things, including a leaky valve, an inaccurate fuel gauge, or an ineffective regulator, can contribute to this issue.

If the valve leaks, the propane may seep from the tank and lower the fuel level. Inaccurate readings may also be the result of a damaged fuel gauge. Thus, tracking how much propane is left in the tank is challenging.

Additionally, a faulty regulator might make it such that the propane flow is improperly controlled, leading to varying fuel levels.

For the fuel supply to propane-powered equipment to be continuous and dependable, this problem must be resolved immediately.

6. Difficulty When Igniting Appliances

If propane-powered appliances such as grills, stoves, and ovens struggle to light up, it can be frustrating and may indicate a potential problem.

This problem can have many causes, such as a clogged fuel line, a lack of gas pressure, or a faulty ignition system.

It may be challenging to ignite your burners and pilot lamps due to a restricted propane flow caused by a plugged fuel line.

Inadequate gas pressure can also hinder the proper mixing of fuel and air, which would otherwise prevent ignition.

Additionally, it may be challenging to ignite the device if your ignition mechanism is defective. A bad electrode or ignition switch can cause this.

7. Damaged Connections

Regularly checking the connections between your propane tank and equipment is essential for safety and optimal performance.

Over time, wear and exposure to environmental elements can damage or loosen connections.

Damaged connections, like cracked or corroded connections, can cause gas leaks and pose a safety hazard. Loose connections can lead to propane leaks, inefficient fuel use, and unit failure.

8. Excessive Ice Buildup

In colder climates such as Chester County, Pennsylvania, frost and ice may build up outside propane tanks.

This is usually normal.

However, the tank’s excessive frost or ice buildup may indicate an underlying problem.

Excessive ice buildup can prevent valves, regulators, and other components from working correctly, restricting propane flow.

This can be caused by issues such as regulator failure, moisture ingress, or poor insulation.

Kauffman Gas technicians can assess the situation and identify the causes of excessive frost and ice buildup. So, whether replacing failed components, improving insulation, or installing de-icing technology, our experts ensure proper propane flow and optimum performance.

9. Reduced Efficiency

Poor efficiency or performance of propane-fueled equipment can indicate some underlying problem that needs attention. One possible cause is low propane levels.

A low propane tank can cause pressure to drop, resulting in reduced heat output and flame strength.

A clogged fuel line and a failed regulator can also restrict propane flow to the unit and affect efficiency. There may be debris, sediment, or dirt in the pipe causing this.

Additionally, burner wear and ignition system failure can result in incomplete combustion, resulting in reduced heat output and uneven cooking.

Regular maintenance ensures optimal performance of appliances and cost savings with propane.

10. Unusual Sounds

It’s crucial to analyze the problem further if you hear or feel strange vibrations from your propane tank. Hissing, rattling, or vibrating sounds are a few examples of unusual noises.

These might indicate gas leaks, loosened parts, or internal malfunctions, among other potential issues.

A hissing gas leak might be dangerous and needs repair immediately. Loose valves or fittings can all result in rattling or rattling noises.

An issue with the relief valve or an imbalance in the internal system may cause vibration in your propane tank.

Get In Touch With Propane Experts Near You

If any of these signs sound familiar, don’t wait. Search for “propane services near me” or call the experts who’ve served Chester, Lancaster, and Delaware counties for generations.

Become a Kauffman Gas customer today and let our knowledgeable team handle all your propane tank needs with swift, hassle-free maintenance.

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