FAQ: How To Stop Wind From Blowing Out Pilot Light On Water Heater?

How do I stop my wind heater from blowing out the pilot?

Because of a natural knowledge of many basements being drafty, a firebox is around the pilot light to prevent it from blowing out. If there are any significant gaps in your firebox, your pilot light will go out regularly. To address this, check your firebox for any significant gaps.

Why does my pilot light go out when its windy?

If your pilot light re-lights easily after going out overnight, it’s possible it was blown out by a draft. This can happen on excessively windy days or nights. A leak in the output duct of the furnace could cause air to blow into the area.

Why does my hot water tank pilot blowout?

The first and most likely reason why you water heater pilot light keeps going out is because of a broken or misplaced thermocouple. However, if the cover to the air vent is rusted or otherwise compromised, a downdraft can form that can be strong enough to blow out your pilot light.

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Why does my water heater go out when it rains?

Some hot water heaters have a thermodisc at the bottom of the flue, to detect flue gas spillage and shut off the HWH. The rain could be causing a downdraft in the flue, thus pushing hot flue gas back. The HWH shuts off until the thermodisc resets and the heater comes back on.

What are the symptoms of a bad thermocouple?

Failed Thermocouple Symptoms

  • Signs of contamination on the tube, e.g. discoloration, cracks, or pinholes.
  • Signs of wear or corrosion of the wirings, e.g. missing insulation or bare wire.
  • Physical damage to the connectors which can have an effect on the reliability of the test reading.

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.

How much does it cost to replace a thermocouple?

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.

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.

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Is it normal for a pilot light to go out?

Sometimes a pilot light can go out as a result of some source of wind or air simply blowing it out. If this happens, there could be an issue with how your flue pipe is set up or how your system is venting.

Why does my hot water heater flame keep going out?

Your thermocouple senses when your pilot light is burning. If it senses that your water heater’s pilot light has gone out, the thermocouple will shift off the gas supply to the heater. Over time, thermocouples can malfunction, accumulate dust buildup, or the device can get bent away from the pilot light’s flame.

Where is the thermocouple on my water heater?

The thermocouple is attached near the pilot light along the burner assembly, with the two ends of the metal placed in the flame of the pilot light, and the other end attached to a shut-off valve for the natural gas line that feeds gas to the burner.

What is Backdrafting on a water heater?

Backdrafting at a water heater is a common defect identified during home inspections, and it’s almost always a condition that the homeowner or occupant is not aware of. An atmospherically vented water heater is a type with a draft hood, which relies on gravity to get the exhaust gases out of the home.

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