Patent ID: 9417009
Filing Date: 2016-08-16
CPC Classification: D06F,F26B,Y02B

Claim Text:
1. A control method for a drying machine including a heat pump system and a heater for heating air to be supplied into a drum, and having a plurality of drying modes using the heat pump system and the heater individually or simultaneously, the method comprising: activating the heat pump system when a drying mode using both of the heat pump system and the heater is selected; and determining whether or not a filter, through which air discharged out of the drum flows, is blocked according to the temperature of air introduced into the drum after the activating of the heat pump system, wherein the heater is activated or deactivated according to whether or not the filter is blocked, wherein drying is executed using only the heat pump system as the heat source when a time point that the filter is determined to be blocked is after a predetermined time elapses from a drying start time point.