Why will the central heating unit continue to run after reaching the set temperature? It does not read that it is reaching a higher temperature, it just continues to run at the reached temperature set.
Why does the central heating unit continue to run after reaching its set temperature
heating
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Best Answer
If this is a forced air system, the blower will continue to run for a specific amount of time after the unit stops producing heat. The unit will no longer be producing heat, but the blower will continue to run to spread the heat that was produced when the unit was full on. If it didn't, a lot of the heat produced would be wasted.
Some units use a heat detection circuit to determine when the blower should turn off. Most however, simply keep the blower on for a predetermined amount of time.