Furnace Air Flow Sensor

Gas supply shut off.

Furnace air flow sensor. Most high efficiency furnaces use a hot surface igniter that heats up to 1 800 degrees f to light the burners. The filterscan wifi home affordable airflow sensor and differential pressure monitor sends you a text or email when it s time to change your home s air furnace filter. For pricing and availability. Royalton 66000 max btu input natural gas 95 percentage upflow horizontal variable speed 2 stage forced air furnace.

The furnace s computer uses the signal from the flame sensor to confirm a successful ignition and turn off the igniter. Royalton 88000 max btu input natural gas 80 percentage upflow horizontal 1 stage forced air furnace. During combustion the combustion blower creates an air pressure that is less than atmospheric negative pressure between the inlet side. There are also mechanical air flow gauges that sense pressure changes.

The draft inducer motor is a blower that creates a flow of combustion air through the furnace s heat exchanger s to make sure all combustion exhaust byproducts are vented outside the home via the flue vent. Follow the instructions in your owner s manual to change the air filter. The premise here is that as the filter fills up with contaminants the differential air pressure in. Replace the air filter in your goodman furnace regularly to keep dust and dirt from clogging the filter and blocking air flow through the furnace.

If the furnace is located in a utility closet or in a cramped storage room there may not be sufficient available air for the furnace to heat properly. Once lit the burners then heat a flame sensor.