Heating Troubleshooting

Cycling between the “On” and “Off” modes may indicate a clogged filter, improper airflow or a bad thermostat setting. 

Normal wear and tear can cause airflow problems, heat control-related problems or even overheating. 

A furnace that doesn’t perform its main task may have problems with the thermostat setting, power, gas or the pilot light. 

Blower issues may indicate a problem with the limit switch, which a professional may need to replace. 

 Dirty of clogged air filters reduce airflow, making a furnace work harder to circulate. In some cases, a clogged filter may damage the limit switch, which controls the fan.  

Failure to schedule annual furnace maintenance and inspections could prevent unexpected problems and breakdowns. These routine inspections can help the appliance run more efficiently and reliably.