Control method for fault indicators in laundry driers
A fault must be signalled to the user even before the machine is started up and a cancellation of the signal must be linked necessarily to the elimination of the cause of the fault. Known indicator devices signal a fault only during operation. In the control method according to the invention, temperatures or air quantities are determined immediately, before the machine is started up, via thermostats or retaining flaps by means of a time-compressed programme-controlled machine test run. The size of these parameters governs the indication of a fault signal. In the event of a fault and after the defects have been rectified by the customer, the actual elimination of the fault is checked by means of a second test run and, if appropriate, the fault indication is necessarily cancelled. The control method is suitable both for exhaust-air and for condensation driers.