What happens when fault code 44 occurs in heating mode?

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When Fault Code 44 occurs in HEATING, COOLING, or CONTINUOUS FAN mode, unit operates as shown below. Keep in mind that whenever furnace control board shuts unit down in heating mode, gas shuts signal for selected off delay. HEATING—During a call for heat, the desired low-heat and high-heat blower RPMs are calculated at the same time.

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