I have a tempstar hc90. I noticed that the room temperature was dropping and the blower was blowing cold air. There is no flame. After researching all night i bypassed the 2 limit switches cause i thought that sounded like the problem but noooo, still freezing! Cleaned the flame sensor rod but would that or the ceramic thing that heats up (sorry cant remember the name) cause the blower and inducer to run constantly even with the thermostat off? Also changed batteries in thermostat. Please help
blower and inducer wont shut off
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