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What Your Findings Might Mean:
If the ohm meter does not change when attached to the two leads from T5 and T6 *1, then there is a problem with the circuit. You will need to remove the top cover of the machine and disconnect the two leads connected to the heating element. Test the heating element on its own by touching the test leads to the two heating element terminals as shown at the beginning of the video. Approximately 20 Ohms means that the heating element is likely good. No change in the meter means that the element has failed and requires replacement.
Now test the fusible link in the same way. Disconnect its two leads from the rest of the circuit. The reading on your meter should be approximately 0 (zero) ohms. If the meter does not change when connected to the fusible link, it means that the link has likely failed and requires replacement.
CAUTION: NEVER operate the roaster without the fusible link in place!
*1 - NOTE: The video states that you are testing at T3 and T4. Those were the old connection points for the fusible link. Ignore those terminal statements in the voice over. In the video, the two red wires are disconnected from terminals T5 and T6.