818730640 OEM Oven Over Temperature Safety Cut Out 180C suits Omega, Smeg Ovens OF902XA C9GMXA

Oven gone completely dead, or cutting out partway through cooking? Part 818730640 is an OEM over temperature cut out rated at 180C, made to suit Omega and Smeg ovens. It's listed for the Omega OF902XA and the Smeg C9GMXA. This small safety device trips when heat builds up where it shouldn't, so it's worth testing whenever the oven loses power.

What an oven over temperature cut out does

The cut out is a safety thermostat, often mounted near the top of the oven or close to the cooling fan. If the temperature at that spot passes its 180C rating, it opens and cuts power to the heating circuits to protect the wiring and cabinetry. Some types reset once they cool and others stay open. When one fails, the oven may not heat at all, may switch off during cooking, or may only work again after it has cooled down. A cut out that keeps tripping can point to a failed cooling fan or a poor door seal.

Part details

• OEM replacement for 818730640
• Over temperature safety cut out rated 180C
• Listed for Omega OF902XA and Smeg C9GMXA
• Aftermarket part made to the original equipment specification

Checking and replacing the cut out

Isolate the oven at the switchboard before removing any panels. With the power off, a continuity test across the cut out tells you whether it's open. Note the wire positions, swap the part and make sure it sits flat against its mount so it reads the temperature properly. If the new one trips again, find the cause before using the oven. Hard-wired ovens should be handled by a licensed electrician.

Questions about this part

Can I bypass the cut out to get the oven going?

No. It's a safety device that stops the oven overheating, and bypassing it creates a real fire risk. Replace it with the correct 180C part and find out why it tripped in the first place.