627029 Genuine Temperature Limiter for Bosch, Siemens, Neff Appliances, BSH Safety Cut-Out Thermostat 00627029

A temperature limiter is a safety cut-out, and 627029 is the genuine BSH version for Bosch, Siemens and Neff appliances. It's also sold as 00627029. Limiters are used in ovens, dryers and other heating appliances, and they come with different trip temperatures and mounting styles, so this listing relies on part number matching. Find 627029 on the old limiter or your parts list to be sure.

What a temperature limiter does

The limiter watches the temperature near a heating element or hot area and breaks the circuit if it climbs past a safe point. It's a backup to the normal thermostat or sensor, there to stop overheating if something else goes wrong. When a limiter fails open, the appliance usually stops heating altogether, or may lose power entirely, even though the element itself tests fine. A limiter that trips repeatedly can point to a blocked vent, a failed cooling fan or a stuck relay, so it pays to find the cause as well as replacing the part.

Part details

• Genuine BSH part 627029
• Also listed as 00627029
• Temperature limiter safety cut-out
• For Bosch, Siemens and Neff appliances

Replacing a limiter safely

Isolate the appliance at the switchboard or wall before opening it up. Ovens and cooktops are usually hard-wired, so that work should be done by a licensed electrician. Label both wires before removing the old limiter, fit the new one firmly against its mounting surface, and make sure the cause of any overheating has been fixed.

Questions about this part

Can I bypass a failed limiter to test the appliance?

Never leave a limiter bypassed. It's a safety device that stops the appliance overheating. A technician may check it with a multimeter, but the appliance should only be used with a working limiter fitted.