Flame sensor should read between 5 and 10 micro-amps. If flame sensor shows below it should be replaced. Faulty flame sensor can cause the heating system to shut down unexpectedly. When the flame sensor fails, it sends a signal to the control board to shut off the fuel supply. This is a safety measure to …
by Global HV/AC 
Heating system short cycles On average, your furnace should cycle for about 10 to 15 minutes each time it starts. If your furnace has a bad habit of starting up and then turning off again after a few minutes or even seconds, it is “short cycling.” Here are a few likely culprits for short cycling. …
by Global HV/AC 
The thermostat is the key to keeping your house a comfortable temperature during the frigid winter and scorching summer. And everyone seems to control their thermostat differently – some micromanage their temperature settings, changing them constantly, while others set it to one temperature and hardly ever change it. But is there a right way to …
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