Whirlpool Cooktop Clicking But Not Lighting: Igniter Gap... | appliancefaults.com

Technical Background:

The cooktop's electronic control module (ECM) sends a low-voltage signal to the igniter module when a burner knob is turned on. This module then generates a high-voltage spark that is delivered to the igniter electrode near the burner. The spark ignites the gas flowing from the burner ports. If the gap between the igniter and the burner is too large or too small, the spark may not be able to jump the gap and ignite the gas. Voltage should be 120V AC to the module from the house supply.

Symptoms:

The homeowner reports that the Whirlpool cooktop clicks repeatedly when a burner knob is turned on, but the burner does not ignite.

Possible Causes:

Incorrect igniter gap
Dirty or wet burner assembly
Faulty igniter module
Weak spark due to low voltage
Gas supply issue
Defective spark electrode

Solution:

1

Disconnect power to the cooktop at the breaker panel (LOTO).
2

Remove the burner grates and burner caps.
3

Clean the burner assembly with a wire brush to remove debris. Ensure it's completely dry.
4

Inspect the igniter electrode for damage or cracks. Replace if necessary.
5

Adjust the igniter gap to approximately 1/8 inch (0.125 inches) from the burner port using needle-nose pliers. Visually confirm alignment.
6

Reassemble the burner components.
7

Restore power and test the ignition on each burner.

Safety Warning:

Disconnect power to the cooktop at the breaker panel before performing any repairs. Lock Out / Tag Out (LOTO) procedures must be followed. High voltage is present in the ignition system; avoid contact with electrical components while the cooktop is powered on.

Prevention:

Regularly clean the burner assemblies to prevent grease and food buildup. Check the igniter gaps annually to ensure proper spacing.

Expert Tip:

Some Whirlpool cooktops have a hidden service mode. Press and hold the 'Timer' and 'Clock' buttons simultaneously for 3 seconds. This might show diagnostic codes or allow component testing.

Frequently Asked Questions

•How do I test the igniter module with a multimeter?

Disconnect power. Use a multimeter to test continuity between the input and output terminals of the igniter module. An open circuit indicates a faulty module. Refer to the service manual for specific resistance values if available.

•What type of gas supply issues could cause this problem?

Low gas pressure, a kinked or blocked gas supply line, or a faulty gas regulator can prevent the burners from igniting. Check the gas supply pressure using a manometer. It should be within the range specified by the manufacturer, typically around 4 inches of water column.

•Where can I find the correct igniter gap specification for my specific Whirlpool cooktop model?

The igniter gap specification is usually found in the cooktop's service manual or on a label near the burner assembly. You can also search online using the model number of your cooktop.

Whirlpool Cooktop Clicking But Not Lighting: Igniter Gap Adjustment Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the igniter module with a multimeter?

•What type of gas supply issues could cause this problem?

•Where can I find the correct igniter gap specification for my specific Whirlpool cooktop model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: