4055472338 Genuine Thermal Cutout 190 Degree Normally Closed for Electrolux Ovens and Cooking Appliances, Overheat Safety Cutout

Part 4055472338 is a genuine Electrolux thermal cutout rated at 190 degrees, with normally closed (N.C.) contacts. It's a safety device that breaks the circuit if the spot it's mounted on gets too hot. We don't have a confirmed model list for this number yet, so check the code on your old cutout, or the temperature and contact type stamped on it, before you order.

What a 190 degree thermal cutout does and how it fails

In normal use the contacts in a normally closed cutout stay shut and power flows straight through. If the temperature at its mounting point climbs to 190 degrees, the contacts open and cut the supply, protecting the appliance from overheating. A cutout that has failed open leaves the appliance dead or stops it heating at all. One that keeps tripping is usually a sign of a separate fault, such as a cooling fan that has stopped, so find the cause of the heat as well as replacing the cutout.

Part details

• Genuine Electrolux part number 4055472338
• Thermal cutout rated at 190 degrees
• Normally closed (N.C.) contacts
• Overheat safety device

Testing and replacing the cutout

Cut the power at the switchboard and give the appliance time to cool fully. Most ovens are hard-wired, so the job should be done by a licensed electrician. Photograph the wiring before removing the old cutout. Fit the new one in the same position with good contact against its mounting surface, reconnect the wires securely and check the cause of any overheating before you put the appliance back in service.

Questions about this part

How can I tell if the thermal cutout has failed?

With the power isolated and the wires off, a multimeter on continuity should read closed across a normally closed cutout at room temperature. An open reading when it's cold means the cutout has failed or tripped and won't reset.