Fault detection method and apparatus for a domestic appliance

Details Fault detection method and apparatus for a domestic appliance Fault detection method and apparatus for a domestic appliance

1993-04-05

1994-09-20

Reynolds, Bruce A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219506, 34082516, 34082536, H05B 300

Patent

active

053491629

ABSTRACT:
A cooking appliance or an electronic control for a cooking appliance and a method of controlling the same including a remote control which has built-in temperature sensor, positional switch and low-battery detection circuit is in two-way intermittent wireless communication with the appliance control unit. The appliance control unit includes a switch means for controlling the heating elements of the cooking appliance wherein the switch means for each heating element includes two power switches connected in series and coupled with a redundancy detection circuit for the detection of a failure of one of the two power switches. Two-way communication between the two control units of the present invention is constantly monitored to ensure proper operation of the cooking appliance and to provide a mechanism to report errors to the user or to shut down the cooking appliance, as appropriate, soon after an error is detected. Mechanisms are also provided whereby the wireless communication means of the control units may be diagnosed to ensure the control unit are properly communicating with each other.

REFERENCES:
patent: 3461443 (1969-08-01), Vasel
patent: 3699300 (1972-10-01), Buerki
patent: 3879718 (1975-04-01), Roberts
patent: 4421270 (1983-12-01), Raleigh et al.
patent: 4634842 (1987-01-01), Payne

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