HVAC Troubleshooting Guides

Use the guides to learn about and troubleshoot common furnace, air conditioning, and heat pump related failures.

General HVAC Questions

How do I choose the proper motor for my air conditioner, heat pump, or furnace?

Common Gas Furnace failures and problems

Troubleshoot a furnace for proper operation

Troubleshoot a Hot Surface Ignitor (HSI)

Troubleshooting a furnace blower motor

Common Heat Pump and Air Conditioner Problems

Troubleshoot an air conditioner or heat pump

Troubleshoot a FROZEN Evaporator (AC) Coil

Troubleshoot a Capacitor

Troubleshooting an air handler or fan coil blower motor