Maytag Range Surface Element Stays On: Troubleshooting... | appliancefaults.com

Technical Background:

Maytag ranges use either an infinite switch or an electronic control board (ECB) with relays to control the surface elements. The infinite switch directly controls the voltage to the element. ECBs use relays to switch 240V AC power. When the switch or relay fails in the closed position, the element receives continuous power.

Symptoms:

The US homeowner observes that one of the Maytag range's surface elements remains ON, glowing red and producing heat, even when the corresponding control knob is in the OFF position. This poses a safety hazard and wastes energy.

Possible Causes:

Faulty surface element infinite switch
Welded relay on the electronic control board (ECB)
Shorted wiring harness leading to the element
Damaged element receptacle (terminal block)
Control board malfunction

Solution:

1

Disconnect power to the range at the breaker panel. Verify with a multimeter that there is 0V AC at the range receptacle.
2

Remove the cooktop (usually secured with screws accessible after removing burner grates) to access the surface element and wiring.
3

Locate the affected surface element infinite switch or the relay on the control board that corresponds to the element.
4

Inspect the surface element infinite switch for physical damage or burnt contacts. If equipped with an infinite switch, test the switch for continuity in the OFF position using a multimeter. It should read open. If it shows continuity, the switch is faulty.
5

If the switch is faulty, replace it with a new one of the correct type and rating. Use a 1/4-inch nut driver to remove and install the switch.
6

Inspect the element receptacle for damage or shorts. Use a multimeter to check for shorts between the terminals with the power off. Replace if necessary.
7

If the switch and receptacle are good, suspect the electronic control board (ECB), specifically a stuck relay. Visually inspect the board for burnt components. A qualified technician should replace the ECB.

Safety Warning:

Always disconnect power to the range at the breaker panel before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed. High voltage is present in the range, and improper handling can result in serious injury or death.

Prevention:

Avoid using excessive force when turning the surface element control knobs. Clean spills promptly to prevent damage to the switches and receptacles. Schedule annual licensed technician inspection of the range.

Expert Tip:

Some Maytag ranges have a service mode that allows you to test the relays and components. Consult the service manual for the specific model to access and use the service mode. A common test procedure involves shorting the T and M terminals on the control board for a few seconds.

Follow-up Questions:

Frequently Asked Questions

•How do I identify the correct replacement infinite switch for my Maytag range?

Locate the model number of your range and search for replacement parts using that model number. The infinite switch should have a part number stamped on it that you can use for cross-referencing.

•How can I tell if the relay on the control board is welded shut?

With the power OFF, use a multimeter to check for continuity across the relay contacts when the relay should be open (element in OFF position). If there is continuity, the relay is likely welded shut.

•Where can I find the wiring diagram for my Maytag range?

The wiring diagram is usually located inside the range, often attached to the back panel or inside the control panel area. You may need to consult the service manual, which can often be found online.

Maytag Range Surface Element Stays On: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I identify the correct replacement infinite switch for my Maytag range?

•How can I tell if the relay on the control board is welded shut?

•Where can I find the wiring diagram for my Maytag range?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: