Replaced thermal limiter that sits in the burner can. It is very important to set your voltmeter to the 20k setting when checking something like a thermistor which seems to lose conductivity over time. This limiter is either good or bad and nothing in between. The setting or continuity voltmeter setting picked the failure up right away. Ordered this part on Sunday afternoon and spent $2 extra for a little extra speed and it arrived on Tues. morning, remarkable! Was an EXACT replacement.