BBQ Not Working Properly? Common Gas Problems & How to Fix Them

BBQ season is at its peak, so it’s frustrating when your grill isn’t performing as it should. If your BBQ is not working properly, it’s often down to a simple gas‑related issue that can be fixed quickly.

Whether you’re dealing with low flame, uneven heat, or a cylinder that seems to run out too fast, understanding the cause will help you get back to cooking without interruption. 

At The Gas Yard, we supply a full range of Flogas gas cylinders and help customers diagnose and fix common BBQ gas problems every day. 

Quick Answer: Why Is My BBQ Not Working Properly?

If your BBQ is not working properly, it is usually caused by one of the following:

• – Low gas levels in your cylinder
• – Regulator or hose issues
• – Blocked burners
• – Cold weather affecting gas flow
• – Incorrect cylinder size for your BBQ

Most of these problems can be solved quickly with a few simple checks.

Problem 1: Low Flame or Weak Heat

One of the most common issues is a weak or low flame, even when the BBQ is turned up fully.

Common causes:

• – Nearly empty gas cylinder
• – Regulator not fully open
• – Blocked burner ports

How to fix it:

• – Check your gas level or swap your cylinder
• – Reset or reconnect the regulator
• – Clean your burners thoroughly

If your gas seems to be running low quickly, it may be worth reviewing how long your BBQ gas cylinder should last to better manage usage throughout the season.

Problem 2: Frost or Ice on the Regulator

Maybe not in the height of summer, but when temperatures are cooler you may notice frost forming on the regulator or cylinder during use. This can happen when gas flow is high in cooler conditions.

What it means:

• – Gas is being drawn too quickly from the cylinder
• – The bottle may be undersized for your BBQ

How to fix it:

• – Switch to a larger cylinder
• – Reduce burner output slightly
• – Avoid placing the cylinder on cold ground

This is more common when using smaller bottles for high‑powered BBQs.

Problem 3: BBQ Not Getting Hot Enough

If your BBQ struggles to reach cooking temperature, the issue is often related to gas flow or airflow.

Common causes:

• – Blocked burners
• – Regulator issues
• – Low gas pressure
• – Wind affecting performance

How to fix it:

• – Clean burners and vents
• – Check all connections are secure
• – Ensure you’re using the correct regulator
• – Position your BBQ away from strong wind

Problem 4: Gas Running Out Too Quickly

If you feel like your BBQ gas cylinder isn’t lasting as long as expected, this is usually linked to usage and cylinder size.

Common causes:

• – High heat cooking
• – Multiple burners in use
• – Smaller cylinder size

Understanding how long a BBQ gas cylinder lasts can help you select the right size and avoid frequent replacements.

Problem 5: Uneven Flame or Cooking

Uneven cooking can often be traced back to inconsistent flame distribution.

Common causes:

• – Blocked burner holes
• – Grease build‑up
• – Uneven gas flow

How to fix it:

• – Clean burners regularly
• – Check flame distribution before cooking
• – Make sure burners are correctly aligned

When Should You Replace Your Gas Cylinder?

Sometimes, the issue isn’t your BBQ — it’s simply that your gas supply is running low.

You should replace or upgrade your cylinder if:

• – Your flame weakens unexpectedly
• – Your BBQ struggles to stay at temperature
• – You’re refilling more often than expected

Switching to a larger propane cylinder can provide longer run‑time, while Gaslight cylinders offer better visibility and easier handling.

Be Ready for Peak BBQ Season

Most BBQ gas problems happen at the worst moment — just when you’re ready to cook. A quick check of your gas supply and equipment before you start can prevent frustration later.

At The Gas Yard, we offer:

• – Free local delivery
• – BBQs and Heaters
• – Flogas Gaslight and Propane cylinders
• – Fast cylinder exchange
• – Friendly, expert advice

If your BBQ isn’t performing as it should, getting the right gas cylinder can often solve the problem immediately.

Check your postcode and book now for LPG gas bottle Delivery.

Frequently Asked Questions