Whirlpool Gas Cooktop Igniter Clicks 3 Times But Won't... | appliancefaults.com

Technical Background:

The cooktop's main control unit (MCU) sends 120V AC to the spark module when a burner knob is turned on. The spark module then generates a high-voltage spark at the igniter, which should ignite the gas flowing from the burner. A flame sensor (thermocouple) detects the flame and keeps the gas valve open. The igniter circuit must have sufficient voltage and gas pressure to create a flame.

Symptoms:

The homeowner reports that the Whirlpool gas cooktop igniter clicks three times but fails to ignite the burner. The clicking then stops, and no gas ignites.

Possible Causes:

Dirty burner ports
Weak igniter
Faulty spark module
Incorrect burner cap placement
Gas supply issue
Defective flame sensor (thermocouple)

Solution:

1

Turn off the gas supply to the cooktop at the shut-off valve.
2

Visually inspect the burner ports for any clogs or debris. Clean with a small wire brush.
3

Verify burner cap placement and seating.
4

Check igniter for cracks or damage. Replace if damaged.
5

Use a multimeter to test the igniter for continuity. A reading of infinite resistance indicates a faulty igniter.
6

Check the spark module for 120V AC input during ignition. No voltage indicates a faulty module or wiring issue.
7

Test the flame sensor (thermocouple) for proper millivolt output when heated. A healthy thermocouple should produce around 20-30 millivolts when heated by a lit burner.

Safety Warning:

Always disconnect power at the breaker panel before performing any electrical repairs. Gas leaks are a fire and explosion hazard. If you smell gas, evacuate the area and call your gas company immediately. Use Lock-Out/Tag-Out (LOTO) procedures.

Prevention:

Regularly clean the burner ports to prevent clogs. Ensure burner caps are properly seated. Periodically check the flame sensor's connections for corrosion.

Expert Tip:

Some Whirlpool cooktops have a hidden service mode. Simultaneously press and hold the 'Timer' and 'Start' buttons for 5 seconds to access diagnostic codes and calibration settings.

Frequently Asked Questions

•What is the acceptable millivolt range for the flame sensor?

A healthy flame sensor should output approximately 20-30 millivolts when heated by a lit burner.

•How do I test the spark module?

Use a multimeter to check for 120V AC input to the spark module when the burner knob is turned on. Also, visually inspect the module for any signs of damage or burning.

•Where is the gas shut-off valve typically located?

The gas shut-off valve is usually located behind the range or in the cabinet below the cooktop. It's a small valve connected to the gas supply line.

Whirlpool Gas Cooktop Igniter Clicks 3 Times But Won't Light: Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the acceptable millivolt range for the flame sensor?

•How do I test the spark module?

•Where is the gas shut-off valve typically located?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: