Try This Portable Patio Heater Relighting Checklist Before Ordering Replacement Parts

As homeowners and business operators started extending their outdoor seasons with patio heaters, it's not uncommon for a few units to stop lighting. Often, there’s no major issue with the portable patio heater. Most of the time, these heaters were simply sitting idle for months, and now you're ready to bring warmth back to your outdoor space. But what happens when your heater refuses to light up? Don't panic just yet—many times, it's just a matter of running through a few basic checks before you consider ordering replacement parts.

At AEI Corp, we hear the same anxious phrase every year: "My A270 heater won't light!" While it’s true that even the best LP heaters occasionally need repairs, more often than not, the problem can be resolved with a simple set of troubleshooting steps. That’s why we’ve compiled this handy guide to help you get your patio heaters up and running again—whether you’re managing a restaurant, a service business, or just want to keep your backyard cozy.

Before Calling for Help: Follow These Simple Steps

It’s completely normal to feel frustrated when your patio heater fails to light. Whether you were planning an outdoor gathering or simply wanted to enjoy the crisp evening air, it’s natural to feel disappointed when your plans are disrupted. Before reaching out for assistance, let’s go through a checklist of common issues that can trip up even experienced users.

Is There Enough Propane in the Tank?

Most portable LP heaters store the tank in the base, especially the classic mushroom-shaped models. Start by disconnecting the tank and checking if it contains propane. A full tank typically weighs around 40 pounds. If it’s empty, you’ll need to refill it at a nearby gas station, supermarket, or another convenient location.

Is the Tank Turned On?

It’s easy to get confused about which way the knob needs to be turned. If the knob isn’t immediately visible, it’s even more challenging. Try turning it both ways until you find the correct position. Don’t worry—it happens to everyone!

Do You Smell Gas?

Long periods of inactivity can cause hoses to dry out and develop leaks. To check for leaks, apply soapy water to the hose and watch for bubbles. If you notice any, replace the hose with a new one before attempting to relight the heater.

Has the Gas Line Been Fully Bleeded?

Sometimes, air can accumulate in the LP heater’s fuel lines, making it difficult to light. Depress the control knob in the pilot position for about 90 seconds to bleed the line. It’s wise to have a fresh LP tank connected during this process to ensure success.

Is the Control Knob in the Pilot Position?

To light the heater, the control knob must be pressed down by about ¼ inch and set to the pilot position. Any deviation will prevent the heater from lighting.

Is the Electronic Igniter Working Properly?

One overlooked issue is checking the AA batteries. Even unused batteries can lose charge over time. Swap them out with new ones to rule out this possibility.

Can You See the Pilot Flame?

If the pilot flame goes out once you release the control knob, you may have a fuel-related issue. Check the lines and tanks for leaks or low levels. Once you have a consistent pilot flame, turn the control knob to the “ON” position. The burner flame should be blue-orange. A yellowish flame could indicate a blockage, requiring professional repair.

What to Do If Your Heater Still Won’t Light

After going through the checklist and addressing potential problems, it’s possible you may still encounter difficulties. Many people feel rushed or anxious during troubleshooting, so take a moment to breathe deeply and double-check everything carefully. If you’ve done this and your heater still won’t light or operates poorly, it might be time to order replacement parts. Here’s how to determine which part needs replacing.

• Fuel Tank: If the tank feels empty despite recent refills, you may need a new one. Keep a spare tank handy to avoid interruptions. Propane tanks are readily available at gas stations and grocery stores.
• Gas Smell: If you detect gas when the knob is open, the fuel regulator or hose may need replacement. Check the hose first, as it’s prone to cracking and drying out over time.
• Electronic Ignition: If new batteries don’t solve the problem, the ignition system may need replacing. Always test multiple batteries before purchasing a part.
• Irregular Flame: A lazy yellow or red flame instead of a blue-orange one suggests a blockage. You may need to replace the burner, fuel regulator, or hose.

For both residential and commercial infrared heaters, proper storage during the off-season is key. Extreme heat and sunlight can dry out hoses, which are frequently replaced. When storing your heater, disconnect the LP tank and cover it to deter pests. Proper maintenance can save you money and hassle down the road.

When to Call for Professional Help

If you’ve exhausted all troubleshooting options and your heater still won’t light, it’s time to contact the manufacturer. A customer service representative may offer additional insights or guide you through further diagnostics. Sometimes, a skilled technician can diagnose the issue over the phone. In other cases, a technician may visit your property to fix the heater, allowing you to enjoy your outdoor space longer.

AEI Corp provides high-quality infrared patio heaters for homes and businesses alike. With a little patience and some basic checks, you can often resolve common issues without needing replacement parts. Happy heating—and enjoy your patio this season!