This technical primer breaks down defrost control board operation, key components, and practical troubleshooting steps every ...

As this weekend's winter storm looms, HVAC technicians are urging residents to take precautions now to prevent system stress.

Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...