Question about Heating & Cooling
A Thermocouple is a sensor used to measure temperature. Thermocouples consist of two wire legs made from different metals. The wires legs are welded together at one end, creating a junction. This junction is where the temperature is measured. When the junction experiences a change in temperature, a voltage is created.
Posted on Dec 13, 2016
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Posted on Jan 02, 2017
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F7: Thermocouple Open
Reads 999?F/C or
1. Check the connection of open thermocouple on the I/O control board.
If the connection is OK, verify thermocouple is not an open circuit
by using your ohm meter. The cook cavity thermocouple should
measure approximately 4-5 ohms and the IR thermocouple should
measure approximately 30-40 ohms. Measure at the I/O control board
o Thermocouple indicates open circuit: Replace defective thermocouple.
o Thermocouple OK: Replace the I/O control board.
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