PURPOSE: To provide a clothes drying machine which does not stop frequently because of actuation of a safety thermostat or a thermocouple for prevention of over-heating, even though the operation is retardant, in case where such a thermostat or thermocouple is actuated to stop the operation and the wash is left half dried or where the operation takes place under the marginal service conditions.

CONSTITUTION: A clothes drying machine is equipped with a controller 12 which continues operation upon changing over into the low output operation in case the predetermined value is exceeded by the wind quantity or temp, fed from an exhaust wind quantity sensor 10 or blowout warm wind temp. sensor 11, and which stops the operation in case the set value for safety is exceeded.