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Turn on Gas and Check for Leaks — Secure Your Gas Water Heater

Beginner45 mins

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How to Relight a Gas Water Heater Pilot Light: A Step-by-Step Guide · Step 5 of 5

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Now that the tank is full of water, turn the main gas supply valve back on. Check all of your gas connections for leaks. A common method is to apply a solution of soapy water to each connection point with a brush or spray bottle. If you see any bubbles forming, you have a leak. If a leak is detected, immediately shut off the gas and tighten the connection, then re-test. Do not proceed until you are certain there are no gas leaks.

Goal: Safely pressurize the gas line and ensure no leaks

  • Gas leaks are extremely dangerous. Do not use an open flame to check for leaks. If you smell gas, shut off the supply immediately, ventilate the area, and call a professional.
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Roger Wakefield Plumbing Education

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FAQs

What should I do immediately if I smell gas at any point during this relighting process?

If you detect any gas odor, stop immediately. Turn off the main gas supply valve to your water heater and evacuate the area. Do not attempt to continue the relighting process, and contact your gas company or a qualified plumber for professional assistance to locate and fix the leak.

I've lit the pilot, but it goes out as soon as I release the control knob. What's the problem?

This common issue typically points to a faulty or insufficiently heated thermocouple. Try holding the control knob in for the full 60 seconds (or even a little longer) to ensure the thermocouple has enough time to heat up. If the pilot still won't stay lit, the thermocouple may be dirty, misaligned, or need to be replaced.

Do I need the specific Husky screwdriver and Scripto lighter mentioned, or can I use different tools?

No, the specific brands mentioned are just examples. Any standard Phillips or flathead screwdriver that fits your water heater's access panel screws will work. For lighting the pilot, any long-reach lighter, such as a BBQ lighter or even a long wooden match, is suitable.

The project is marked 'beginner' and '45 minutes,' but I'm finding it difficult or it's taking much longer. What should I do?

The difficulty and time estimates are averages; it's perfectly fine if it takes you longer, especially if it's your first time. If you're struggling with any step, feel unsafe, or simply can't get the pilot to light after several attempts, don't hesitate to pause and call a qualified plumber for assistance. Safety is paramount.

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we can go ahead and shut off all the taps around the house and proceed with the lighting procedure turn on the gas and check for any leaks. I didn't show this part on camera but a little bit of soapy water sprayed on each connection on the feed pipe. We'll show you any leaks in the form of air bubbles. If this happens shut off the gas immediately and either recheck everything or call a professional for help. Do not attempt to light the unit if you see air bubbles. So now you'll

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