Patio Heater Troubleshooting

Patio Heater Lighting Problems

Whether you have a gas patio heater or an electric patio heater, it's essential to make sure the unit activates correctly. Verifying that your heaters will light and stay lit ensures the comfort and convenience of your guests.

Patio Heater Won't Light

Several factors can prevent your patio heater from lighting. Inspect the following components to identify what is causing the issue and fix the problem.

• Debris buildup on the pilot: Over time, dust, dirt, and other particles can accumulate around the pilot, preventing the heater from igniting. Regularly check for debris and clean any buildups to avoid this issue.
• Low gas pressure: Confirm that the gas cylinder connected to the heater has sufficient fuel and that there is no damage to the connection. A loose or damaged connection can lead to low fuel pressure, preventing the heater from igniting. If you suspect a damaged connection, replace the faulty parts to restore proper gas flow and pressure.
• Gas leak: Leaking connections and damaged gas lines may prevent ignition. If you suspect a leak, inspect the gas lines for any signs of damage, such as cracks or corrosion. Gas leaks can be hazardous, so always prioritize safety and immediately seek professional help if you find one.

Patio Heater Won't Stay Lit

If you're experiencing issues with your patio heater not staying lit, troubleshooting a solution will depend on whether you have a gas or electric model. We'll outline what to look for on each type of heater below:

• Gas patio heater: The most likely cause of a gas patio heater that won't stay lit is a damaged gas line. Assess the line for a poor connection or wear and tear to identify the source of the issue. If you're unsure of how to replace or repair your gas line, it's best to contact a service professional who can assist you.
• Electric patio heater: If you have an electric patio heater that won't stay lit, the most common cause is damaged wiring. Inspect the wiring for signs of corrosion, grayed coloring, or damaged insulation. Additionally, check the surrounding area for any environmental exposure or rodent infestations. To ensure the safe repair of damaged wiring, contact a service professional.

Patio Heater Regulator Problems

A regulator controls the flow of propane and natural gas from the cylinder to the burner and is a crucial component of your patio heater. There are a variety of issues that may affect your regulator's effectiveness, and we've listed the most common below.

• Regulator won't connect to the gas cylinder: In most cases, the reason a regulator won't connect to a gas cylinder is because the cylinder is the wrong size. Verify that your cylinder valve and regulator are compatible to achieve a proper connection.
• Regulator freezing up: A freezing regulator is typically caused by the improper flow of liquid propane. To prevent this issue, only use propane tanks that are designated for use with patio heaters. If your regulator continues freezing up, contact a service professional for assistance.
• Gas not passing through the regulator: Check that all of your connections are secure and there are no blockages in the gas line if gas isn't passing through the regulator. If no blockages are present, you may need to reset your regulator or contact a service professional for assistance.

Patio Heater Flame Problems

Flame issues can significantly affect the performance of your patio heater, and it's important to resolve them promptly. Failure to do so can cause damage to the unit and put your guests in danger.

Patio Heater Flame Is Too High

A flame that is too high will cause your heater to operate ineffectively. If you notice that your flame is higher than it should be, inspect the following components:

• Damaged thermocouple: The thermocouple detects the presence of a flame and allows gas to flow through the burner. Over time, it can become worn out or damaged, leading to an erratic or excessive flame. Examine it for any signs of discoloration, cracks, corroded wires, or defective connectors, and contact a maintenance professional for assistance if needed.
• Faulty safety switch: Patio heaters feature a safety switch that automatically shuts off the gas supply if the unit tips over. If this switch is malfunctioning, it can cause an erratic flame. If you suspect a problem with your safety switch, contact a maintenance professional.
• Incomplete combustion: Any interference with the combustion process can cause your flame to rise or fall significantly. To address this problem, assess your burners for any signs of corrosion or blockages. Low gas pressure or a clogged air intake can also contribute to incomplete combustion, and a key indicator that it is occurring is a yellow flame.

Patio Heater Flame Is Too Low

A low patio heater flame will not generate enough heat to keep your guests warm. If you notice that the flame on your unit is not reaching the desired height, several variables may be to blame.

• Low gas pressure: Insufficient gas pressure can result in a weak flame that does not provide enough heat. To check for this issue, ensure that your propane tank is fully open and that there are no restrictions on the gas line. Additionally, make sure that the gas valve on the heater itself is fully open.
• Damaged regulator assembly: A damaged regulator assembly will restrict gas flow to the burner. Inspect the regulator for any signs of damage or wear and consider replacing it if necessary.
• Blocked burner orifice: Debris buildup on and around your burner orifice can lower its effectiveness. Clean your burners as needed to avoid debris buildup.
• New propane tank: If you are using a new propane tank that hasn't been purged of air, your flame will struggle to rise. Purge your tank before use to avoid this issue, as air trapped inside the tank can disrupt gas flow.
• Damaged gas hose: Over time, your gas hose may become twisted or tangled, restricting gas flow to the burner. Assess the gas hose for any kinks, bends, leaks, or cracks. If you identify any issues with the hose, replace it with a new one to ensure safe and efficient operation.

Patio Heater Has a Yellow Flame

In most cases, your patio heater's flame should be blue. A yellow flame indicates an improper oxygen ratio for combustion and should be promptly fixed to ensure the safety of your staff and guests.

• Dirty or clogged burner orifice: Regular cleaning of the burner orifice is essential to maintain optimal performance and proper flame color. Refer to your heater's user manual for cleaning instructions.
• Clogged air intake: The air intake of your patio heater may become clogged with buildup or debris, preventing oxygen from properly mixing with the gas and causing a yellow flame. Remove blockages from the air intake to alleviate the issue.
• High humidity: In areas with high humidity, moisture can affect the combustion process. This excess moisture can affect flame color, potentially turning it yellow. If you frequently experience high humidity, it may be necessary to consider purchasing a patio heater designed to accommodate your climate.

Patio Heater Pilot Keeps Going Out

Also referred to as a pilot light, the pilot is a small gas flame that helps to ignite gas burners. If it does not stay lit, your patio heater will not be able to function.

• Drafts: Even a slight breeze can disrupt the flame and cause it to extinguish. Position your heater in an area sheltered from wind and the elements. If necessary, consider relocating the heater to a more protected spot.
• Gas flow obstructions: Confirm that there are no kinks, twists, or leaks in the gas supply line. Additionally, examine the gas valve and regulator for any signs of damage or blockages.
• Dirty burners: Regularly clean the burner to remove any obstructions.