If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

ST. LOUIS — White-Rodgers, a business unit of Emerson and part of the Emerson Climate Technologies business segment, has developed what the company said is the first universal heat pump defrost ...

US startup TerraVis Energy is developing a residential heat pump that it claims can maintain high comfort levels without requiring defrosting. “The system is based on our soon-to-be patented ...