How to Check the Voltage on a Cooktop

Cooktops on electric ranges usually consist of four coiled elements that provide heat at varying temperatures for cooking. Each element is individually controlled by a variable rheostat, which increases or decreases power depending on its setting. When one or more of the cooktop elements becomes inoperative, a voltage test can be performed on each of the cooktop’s receptacles. Checking the voltage on the cooktop requires the use of a multimeter and an understanding of electrical circuits.

Multimeter

Instructions

- 1
  Turn all the element controls that power the cooktop to the “Off” position. Make sure that all the elements are completely cool before performing a check of the cooktop.
- 2
  Remove each cooktop elements from its respective receptacle. Raise each element up slightly and then pull it out. Each element is plugged into the receptacle with two prongs.
- 3
  Remove the splash pans from each of the holes.
- 4
  Set the selector switch on the multimeter to read alternating current (AC), 240 volts or higher.
- 5
  Insert one test probe into either of the two slots of the receptacle and the other in the remaining slot. Polarity is not required to perform this voltage test.
- 6
  Turn the control that operates the receptacle you are checking to “High.” Check the multimeter reading to verify that the power is 240 volts.
- 7
  Rotate the control slowly in either direction to the “Off” position. The voltage reading on the multimeter should steadily fall as you turn the control.
- 8
  Repeat Steps 5, 6 and 7 on the remaining element receptacles.

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