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Continuously running blower
I have an older central heating system that the blower continuously runs. I have changed the blower limit switch that didn't fix the problem. The thermostat seems to be working fine but no matter where I switch the fan to (aauto/on) it keeps running. I noticed what seems to be what looks like a relay where all the wiring comes together and wondered if this might be the culprit. I work on electronics in my employment but I'm not an hvac person so I'm hoping someone can help me out.
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