FG8SD-050U-T23A Nortek Furnace - Overview
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PartSelect #: PS18310730
Manufacturer #: 626481R
$19.82
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Ryan
November 25, 2025
The furnace is randomly not turning on, despite the thermostat sending the signal to heat. Have tried replacing the thermostat, but furnace won't start until it's powered off and on.
For model number FG8SD-050U-T23A
Hi Ryan, thank you for reaching out. We would suggest checking the limit switch, part number PS18310730. You may need to replace it to fix the issue. We hope this solves your problem!
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