2018 374th Solitude
Suburban SF 35q furnace won’t cycle in colder temps (below 45). Furnace comes on runs for awhile and shuts off before reaching thermostat temp. If I turn off and back on, will run again it heats but will then do the same thing. Once outside temp increase, it will cycle as it should from the thermostat.
Have had a tech out a couple of times, replaced board with dinosaur brand, high limit switch and thermostat. Still same issue. No blockages in the furnace. Sail switch tested good. Pretty sure the high limit switch is causing the shutdown. What could be causing the shutdown?
Suburban SF 35q furnace won’t cycle in colder temps (below 45). Furnace comes on runs for awhile and shuts off before reaching thermostat temp. If I turn off and back on, will run again it heats but will then do the same thing. Once outside temp increase, it will cycle as it should from the thermostat.
Have had a tech out a couple of times, replaced board with dinosaur brand, high limit switch and thermostat. Still same issue. No blockages in the furnace. Sail switch tested good. Pretty sure the high limit switch is causing the shutdown. What could be causing the shutdown?
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