A goodman furnace with four blinks could be indicating that you are reaching a high limit.
Goodman furnace heat exchanger.
Genuine oem part 2521301s rc item 2645672 alternative part number s 1 related expert content.
They are widely used in space heating refrigeration air conditioning power plants chemical plants petrochemical plants petroleum refineries natural gas.
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The limit switch is a temperature sensor attached to a mounting plate inside the furnace housing.
Heat exchanger assembly 0270f00934s heat exchanger assembly.
This piece is in control of activating the blower fan to circulate air through the heat exchanger and into the house while also pulling cool air into the unit.
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