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The furnace ignitor may light up but not produce a flame due to issues such as a clogged burner, a faulty gas valve, or a lack of fuel supply. It is important to have a professional inspect and repair the furnace to ensure safe and efficient operation.

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4mo ago

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How does an ignitor on a furnace work?

An ignitor on a furnace works by generating a high voltage electrical current that creates a spark or a hot surface to ignite the gas or oil in the furnace. This ignition process is essential for starting the combustion process that produces heat for the furnace to operate and warm up the space. If the ignitor malfunctions, it can prevent the furnace from starting properly.


What is flame rectification?

Flame rectification is DC electrical circuit that sends a very small voltage (rated in micro amps) from the furnace electronic board up through the pilot electrode. When pilot flame is established the flame acts as a path (conductor) which allows the DC current to flow from the flame rod to ground completing the circuit. This completed signal tells the electronic board it's ok to allow the main gas valve to open . Now your furnace pilot, or hot surface ignitor will start the main flame . To put it simple, flame rectification is an electronic way to prove pilot flame before opening the main burner gas valve. It's a safety circuit to prevent the main burner gas valve from opening if there isn't apilot flame, or hot surface ignitor established.


Why does the furnace light up and then go out?

The furnace lights up and then goes out because it is designed to ignite the fuel to produce heat, but if there is an issue with the ignition system, fuel supply, or airflow, the furnace may not be able to sustain the flame and will shut off as a safety measure.


Why won't your Goodman heater model GMT090-3B start when the thermostate is turned up?

Check the error code on the control board at the furnace. It could be a number of things. If the furnace is not lighting, it could be the ignitor If the furnace lights then goes out right away, it could be the flame sensor If the furnace lights then goes out after several minutes, it is a limit switch. Turn the tstat fan switch to on and see if the fan comes on, if it does not you have no power to the furnace, check the breakers or cutoff switch.


Why won't the furnace pilot light light up?

The furnace pilot light may not light up due to issues with the gas supply, a faulty thermocouple, a dirty pilot light, or a malfunctioning ignition system. It is important to troubleshoot and address these potential issues to get the pilot light to light up and the furnace to function properly.


When was New Way - To Light Up an Old Flame - created?

New Way - To Light Up an Old Flame - was created on 1991-06-24.


How do gas furnace burners function to produce heat in a heating system?

Gas furnace burners function by mixing natural gas with air and igniting it to create a controlled flame. This flame heats up a heat exchanger, which then transfers the heat to the air that is circulated throughout the heating system.


What is function of ignitor in metal halide lamp?

The ignitor in a metal halide lamp is responsible for providing the initial high voltage needed to ignite the gas inside the lamp. It generates a high voltage pulse to establish an electric arc between the electrodes, which then heats up the gas and produces the light output. Once the lamp is ignited, the ignitor is no longer needed and the lamp can operate using the ballast.


How do you maintain a 1993 Heil PS80 gas furnace?

Changing Filters monthly or bimonthly, Cleaning the Flame Sensor yearly or bi-yearly, and getting a yearly maintenance/tune-up from your dealer are good suggestions on how to maintain a furnace.


Why does the blower take 2 minutes to start on forced air furnace?

There is a delay on the fan to allow the furnace to get hot so as not to blow cold air into the home at start up. There is also an `OFF` delay, where the fan runs for a minute or so after the flame shuts off. This is to cool down the furnace.


What does a furnace do and how does it work to heat a home efficiently?

A furnace is a heating system that burns fuel to produce heat. It works by igniting the fuel, which creates a flame that heats up air. The heated air is then circulated through the home via ducts, warming up the space efficiently.


How many btu in a interthermfurnace pilot light?

There are 55,000 BTU in an intertherm furnace pilot light. It is a way of heating up a place.