An LPG regulator replacement is a quick job for a licensed gasfitter, but knowing when you need one matters for safety.
If your home runs on LPG, the regulator is one of the most important parts of the system, and one of the easiest to overlook. Knowing the warning signs can help you catch a problem before it becomes a safety issue.
What does an LPG regulator do?
LPG is stored in cylinders at high pressure, far higher than your appliances can safely handle. The regulator reduces that pressure to a steady, lower level suitable for your cooktop, heater, hot water system or barbecue. On a dual-bottle setup, which has two cylinders connected together, the regulator, often with an automatic changeover feature, switches to the second cylinder when the first runs empty so your supply isn’t interrupted.
Because regulators work constantly and sit outdoors, they can deteriorate over time from weather, heat, dust and general wear.
Signs your regulator may need replacing
- Weak or lazy flames. If burners seem low on power even though the cylinders aren’t empty, the regulator may not be delivering gas properly.
- Yellow or orange flames. Gas flames should usually burn blue. Yellow flames can point to a gas supply or burner problem, which should be checked by a licensed gasfitter.
- Appliances cutting out. Pilot lights going out or appliances shutting off unexpectedly can be a sign of inconsistent pressure.
- A gas smell near the bottles. LPG has a strong, distinctive odour added so leaks can be detected. Treat any smell seriously.
- Frosting or ice on the regulator. Some cooling is normal when gas is used heavily, but heavy frosting may suggest a problem.
- Hissing or whistling sounds. These can indicate gas escaping or the regulator not working as it should.
- Visible damage or age. Look for cracks, corrosion, a perished or damaged hose, or a regulator that has been in place for many years. Many regulators have a manufacture date stamped on them, and manufacturers specify replacement intervals, so check yours.
What to do if you suspect a problem
- Turn off the cylinder valves at the bottles, if it is safe to do so.
- Put out all flames and don’t smoke, light matches or use anything that could spark nearby.
- Don’t use light switches or electrical devices near the gas smell.
- Ventilate the area by opening doors and windows, and keep people and pets away.
- If the smell is strong, or you feel unwell, get everyone outside and call 000.
- Call a licensed gasfitter to inspect the system before you use it again.
The gas distributor’s emergency number is on your gas bill, and it’s worth saving it in your phone. For LPG cylinders, your gas supplier’s details are usually on the cylinder or your account paperwork.
Why a licensed gasfitter should replace it
Swapping a regulator might look like a simple job, but it isn’t one to do yourself. Gas work in Queensland must be carried out by a licensed gasfitter. They’ll make sure the right regulator is chosen for your setup and appliances, that fittings are properly connected and that nothing is cross-threaded or damaged. After installation, they perform a leak test to confirm every joint is gas-tight, and check that your appliances are receiving the correct pressure.
Don’t try to test for leaks with a naked flame. Even small leaks can be dangerous, and a proper test uses the right equipment and method. Gas work such as this may also need to be certified, so ask about this when you book. Our guide to gas compliance certificates explains more.
Prevention tips
- Keep the area around your cylinders clear of rubbish, dry grass and anything flammable
- Keep cylinders upright and secured
- Check hoses and fittings by eye regularly for cracks or wear
- Have your gas system inspected if it has been a long time since anyone looked at it
When to book an LPG regulator replacement
Book an LPG regulator replacement if you smell gas near the bottles, see frost on the regulator or notice weak flames. Because it’s gas work, it must be done by a licensed gasfitter. Resources Safety and Health Queensland has more on gas safety, and our LPG gas team can help.
Worried about your LPG regulator? Call The Plumbing Gang on 1300 671 525 or see our gas fitting services. For urgent problems, our emergency plumber service is available 24/7.