Electronic Ignition Furnace Thermocouple

One can still purchase a gas furnace or water heater with the old standing pilot ignition systems these systems have been proven reliable and safe over time.

Electronic ignition furnace thermocouple.

Faulty temperature limiting switch. Gas furnaces now come with an igniter that works electronically to light the gas and heat the home. Gas systems that are eligible for an upgrade from standing pilot to electronic ignition covers btu ratings up to 270 000. This system uses a pilot flame but the pilot lights only when there s a call for heat from the thermostat the furnace s electronic control board activates an electric igniter that uses a.

If no flame is present the sensor stops or prevents the flow of gas from the gas valve thus preventing the dangerous situation of. What thermocouples and flame sensors do. Before the advent of modern electronic ignition furnaces most gas furnaces featured a small standing pilot light that burned all the time. This water heater is an electronic ignition version the thermocouple or electronic igniter are in the same location on an rv truck camper water heater.

Intermittent pilot ignition. Honeywell produces an electronic ignition retrofit kit that is ideal for residential and light commercial gas furnace systems. There are two basic types of electronic ignition systems. Electronic ignition systems aren t designed to last for the lifetime of your furnace.

In such furnaces the standing pilot works together as a team with the thermocouple the electronic device that senses if the pilot flame is hot enough to ignite natural gas or propane fuel to the burner to control gas flow and the ignition of your. Since there are many different types of gas furnaces it is difficult to cover every single possible gas furnace problem that can occur with a gas furnace in one article. How to tell if an ignitor on a gas furnace is working. Both are safety devices that sense the presence of a flame and control the flow of gas to the appliance accordingly.

Most gas furnaces use either a flame sensor or a thermocouple often referred to as a thermal coupler. The electronic ignition system in a gas furnace is a modern development that provides more reliable performance than a standing pilot and offers energy savings through better furnace efficiency. These newer furnaces do not use a pilot. Electronic ignition vs standing pilot modern gas furnaces use electronic ignition systems to light the burners in modern furnaces.

The temperature limiting switch is a safety feature that turns off the burner when the furnace becomes too hot clogged air filters and problems with the switch itself can cause the igniter to. One type of electronic ignition is an intermittent pilot.