York Affinity 8.S Furnaces

York Affinity 8.S Furnace Overview

The York Affinity 8.S is a discontinued single-stage gas furnace with an efficiency of 80.0% AFUE. A hot surface ignition improved efficiency, and an insulated blower compartment provided increased noise reduction. The 8.S had a tubular aluminized steel heat exchanger and an induced combustion system with inshot main burners. A built-in self-diagnostics module with fault code display helped monitor system operation. The compact 40-inch cabinet allowed for installation in smaller areas. The Affininity 8.S furnace was part of the York Affinity series.

Questions about this model?

Consumer Reviews of York Affinity 8.S


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #15 of 20 York Furnace
  • 0% of customers recommended

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Other Affinity 8.S Reviews

There are very few online reviews of the Affinity 8.S. On homerepairforum.com, a homeowner had a unit which shut down with 7 LED flashes, indicating a ‘lockout with multiple retries’. He was advised to clean the flame rod, which solved the problem.

Question and Answer


What does four flashing red lights indicate on a York Affinity 8.S furnace?


Four red flashes indicates that a high-limit switch is open. This can be caused by something restricting airflow, such as a dirty air filter or a problem with the ductwork, as well as a problem with the control board or the blower motor.


Has a flashing red light


Red light flashes are usually a diagnostic codes. Count the flashes before a pause. On the inside of the door panel is usually a chart for the codes. The reason it wont come on is it is probably in a lock out for a safety failure (non-ignition, vent failure, over heating due to bad blower motor, ect.). If you turn off power the codes are usually lost and resets the board. Cycling power may get you heat but first you need to determine this cause of failure or it will happen again. Please seek a professional for repairs.

Affinity 8.S Warranty

The warranty for the York Affinity 8.S furnace was comprised of the following:

  • 20-year limited warranty on the heat exchanger
  • 5-year limited warranty on all other parts

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