Water Heater Failure To Light
Example tank is a john wood 40 gallo.
Water heater failure to light. Sometimes the thermocouple just needs an adjustment so that the tip lines back up with pilot light flame. When the water heater pilot light goes out first try relighting it following the directions on the water heater label. The pilot ignites the water heater s gas burner. For electric hot water heaters start troubleshooting with a quick reset.
If the pilot is restricted try removing it and clearing it with a stiff brush and or compressed air. The air intake is located on the bottom or side of the water heater and may need to be cleaned out in order for the pilot to stay lit. These systems are pretty much essential for modern life which means they need to be replaced or repaired promptly in this post we ll look at the common causes of water heater failure and how you as an hvac professional can address them with your clients while still maintaining profitability 4 common causes of. The most common reason for replacing the igniter.
Water heater failure can be a major expense and inconvenience for consumers. How to diagnose and repair a faulty atmospherically vented gas fired water heater. Either the pilot light orifice or tube is clogged or needs replacement the thermocouple is loose or faulty there is air in the gas line or the gas valve is defective. When you know exactly how to light a pilot light on a water heater yet it won t light there are a few possibilities as to why.
Most of the time improper venting would cause the pilot outage on direct vent gas water heaters dv. If you don t see a spark at all when you are trying to light your pilot it may be that you are not looking in at the right angle. Sometimes carbon deposits can build up on the pilot and eventually create a restriction. The water heater pilot light is a small flame that ignites the gas burner on your water heater.
Common problems and how to fix them. Turn off the water heater for a few minutes and then turn it back on. The thermocouple is a safety device that stops gas flow when the pilot light goes out. If the pilot does not light the water heater will not heat.
In the commercial water heater industry there s a reason we call a failed water heater a leaker. If the pilot cannot be cleaned replace it. The light goes out due to improper venting or air supply. When that water heater is leaking water from the bottom of the tank of a standard atmospheric water heater it s a sure sign you ve got a leaker meaning your water heater is about to fail completely and soon.
Pilot will not stay lit. Published on feb 18 2014 this video provides step by step instructions for replacing the igniter and flame sensor on ao smith gas water heaters.