Why is the auxiliary heat coming on

the

Troubleshooting a Faulty Auxiliary Heat Relay

Other suggestions:

Troubleshooting a Faulty Auxiliary Heat Relay
Troubleshooting a Faulty Auxiliary Heat Relay
Understanding Auxiliary and Emergency Heat in Thermostats
Understanding Auxiliary and Emergency Heat in Thermostats
What do the Auxiliary Heat Strips in my Furnace Do?
What do the Auxiliary Heat Strips in my Furnace Do?
What is the difference between auxiliary heat and emergency heat?
What is the difference between auxiliary heat and emergency heat?
Faulty Auxiliary Electric Heater on a Heat Pump
Faulty Auxiliary Electric Heater on a Heat Pump
11-17-17 Carrier Heatpump Package Unit Auxiliary Heat Issues
11-17-17 Carrier Heatpump Package Unit Auxiliary Heat Issues
Troubleshooting auxiliary heat cutting on with AC
Troubleshooting auxiliary heat cutting on with AC
Testing Carrier Infinity Heat Pump in Auxiliary Heat Mode
Testing Carrier Infinity Heat Pump in Auxiliary Heat Mode
Effective auxiliary heating system
Effective auxiliary heating system
No Heat Repair of Dual Fuel Geothermal System With Gas Auxiliary Heat
No Heat Repair of Dual Fuel Geothermal System With Gas Auxiliary Heat