Readers ask: How To Keep Pilot Light Lit On Water Heater?

Why will my pilot light not stay lit on my water heater?

When the pilot light on a water heater will no longer stays lit, it typically means the thermocouple is bad. Thermocouples are little electric generators that create a magnetic current that holds open a magnetic gas valve inside the control unit on the front of the water heater.

What do you do if your pilot light won’t stay lit?

How to Light Your Furnace’s Pilot

  1. Make sure the thermostat is in heat mode.
  2. Locate the pilot valve.
  3. Always turn the valve knob to the off position and make sure to wait at least several minutes for any residual gas to clear away.
  4. Get your match ready.
  5. Once the pilot stays lit, turn the pilot valve to the on position.
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Why does my pilot light go out when I release the pilot light knob?

If you’re able to light the pilot light, but it goes out when you release the control knob, the thermocouple probably needs replacing. The thermocouple is a safety device that shuts off gas flow if it senses the pilot light is out, but when damaged it loses its regulatory ability.

Should pilot light on water heater always be on?

The water heaters does not have anignitor. The pilot should be on the water heating the house. The pilot flame can be difficult to see through a window. To know if the pilot is on or off, you need to remove the access door and shield and look at the burner and pilot through it.

How much does it cost to replace a thermocouple on a water heater?

Thermocouple – $20 to $150 The thermocouple is an apparatus that senses whether the pilot light is lit and triggers the gas control valve. Repairs typically cost about $150 to have it done professionally, though a new thermocouple itself only costs about $20 on average.

How do you know if you have a bad thermocouple?

If you can’t get the flame to light at all, and you’re sure the gas is on, there’s probably an obstruction in the pilot tube. If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that’s the sign of a thermocouple malfunction.

What would cause a pilot light to keep going out?

Thermocouple Malfunction It is positioned very close to the flame, and when lit, the pilot light tells the thermocouple to keep the gas line open. A thermocouple that is dirty or malfunctioning will often shut off your gas supply in error, causing the pilot light to go out and your furnace to stop working.

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How do I clean a thermocouple?

The best way to clean your thermocouple is to use either a piece of steel wool or the coarse side of a sponge to gently clean off any soot or other remnants. You can use a pencil eraser to clean between the threads of the screw that connects the thermocouple to the control valve of your system.

Can I fix a thermocouple?

If the pilot lights but the flame goes out as soon as you release the button after holding it for 60 seconds, then the thermocouple is bad. It’s possible to replace the thermocouple without removing the burner assembly, and many repair people do this.

Do I need to turn gas off if pilot light goes out?

If the pilot light goes out on a storage or instantaneous hot water heater, space heater or a ducted heater, you will not have a gas leak. This is because all modern gas appliances with pilot lights have a fail-safe device that closes off the gas to the appliance in the case when the pilot may go out.

Will a pilot stay lit with a bad thermocouple?

What is a Thermocouple? A thermocouple senses the heat of the pilot and allows gas to flow to the burner. A bad thermocouple will shut off gas to both the pilot and the burner so the pilot light won’t stay lit.

Can I leave my hot water tank on pilot?

3 Answers. Yes it is safe to leave the water heater in pilot mode while flushing. You do not want the burner to fire while the tank is empty as this can damage the tank but the pilot will not cause a problem. Added: most gas valves with a standing pilot have the temp setting and “pilot” then off settings.

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Should I leave my gas water heater on all the time?

It only takes a tiny spark to ignite highly combustible propane gas – which can mean an explosion or fire in case of accident. The simple and safe answer that you should not leave your RV hot water heater on all the time if it is propane powered.

How long does it take for water to get hot after lighting pilot?

How Long Will It Take to Get Hot Water Again? The average gas heater takes between thirty and forty minutes to heat a full tank of water. The exact time depends on the capacity. For comparison’s sake: An electric heater takes at least an hour, usually up to 80 minutes, to warm up.

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