Patent ID: 9664425
Date: 2017-05-30
CPC Classifications: F24D,F24F,F24H,F25B

Claim:
1. A method for defrosting an evaporator of a water heater appliance, comprising: establishing, by use of a controller in communication with an ambient temperature sensor and an outlet temperature sensor positioned adjacent an outlet of the evaporator, that the evaporator of the water heater appliance is frosted over by: initiating a defrost cycle of the water heater appliance; deactivating a compressor of the water heater appliance during the defrost cycle of the water heater appliance; and operating a fan of the water heater appliance during the defrost cycle of the water heater appliance, the fan of the water heater appliance drawing a flow of air across the evaporator of the water heater appliance during said step of operating.