140047263185 Genuine Wok Burner Thermocouple 500mm for Electrolux Group Gas Cooktops, Flame Failure Safety Thermocouple

If your wok burner lights but goes out the moment you let go of the knob, the thermocouple is the usual suspect. Part 140047263185 is a genuine Electrolux group thermocouple for the wok burner on gas cooktops, listed at 500mm. Electrolux uses several thermocouple lengths, so check the old one's length and the part number before ordering.

Wok burner won't stay lit? Check the thermocouple

A thermocouple is the flame failure safety device beside the burner. When the flame heats its tip, it produces a tiny voltage that holds the gas valve open. If the flame goes out, the voltage drops and the valve shuts off the gas. Once a thermocouple fails, the burner will only run while you hold the knob in, or it drops out after a few seconds. Burnt or cracked tips, a loose connection at the valve and grease buildup are typical causes, and a bent tip sitting out of the flame does the same thing.

Part details

• Genuine Electrolux group part 140047263185
• Thermocouple for the wok burner
• Listed by Electrolux at 500mm
• Flame failure safety part for gas cooktops

Gas safety and fitting

Because it's a gas safety part, only a licensed gas fitter should replace it. Turn off the gas and the power at the wall first. The fitter will route the new lead along the old path without kinks, tighten the valve connection correctly and leak test the cooktop. Light the wok burner and check it stays alight once the knob is released.

Questions about this part

Can I use a thermocouple of a different length?

It's best not to. The length has to suit the distance from the wok burner to its gas valve, and a lead that's too short won't reach while one that's too long can sit near hot parts. Match the 500mm length and part number of your original.