Aux Heat On But No Heat? Use This Troubleshooting Chart

An image guiding users to diagnose heating system problems when the emergency heat is active but the house remains cold. This comprehensive graphic helps homeowners identify and resolve issues with their furnace or heat pump.

Aux heat on, thermostat set to 72 degrees, house sitting at 58. That’s the call we get. After fifteen years of field inspections across Gulf Coast homes, our team has traced this failure to five root causes — most of which you can diagnose in under ten minutes without a technician. This page gives you … Read more