Not my first rodeo with this oven model installed new 2013. After running 1st self-cleaning about 6 months in. The bugger went dead. Both (WPW10545255 & WP4449751) are on the same circuit. Used to just replace which ever went bad, unfortunately, they do not necessarily malfunction at the same time. So I now find it easier to just replace them both while the oven has been removed from the cabinet. Since they are not in the same location, you will still need to remove the back pannel to check the resistance on the Thermostat-Fix. If it is in parameters then you have a spare. The real work is removing the unit to access the items.