Whirlpool Gas Cooktop Clicking Sound During Low Simmer:... | appliancefaults.com

Technical Background:

The cooktop's electronic control module (MCU) sends a signal to the igniter module when a burner knob is turned on. The igniter module generates a high-voltage spark at the electrode near the burner, igniting the gas. A flame rectification circuit senses the presence of a flame. If the flame signal is weak or absent, the MCU continues to cycle the igniter, causing the clicking sound. Voltage paths include 120V AC to the MCU, low voltage DC signal to the igniter, and a flame sense feedback signal back to the MCU.

Symptoms:

The Whirlpool gas cooktop clicks repeatedly when set to low simmer. The burner may light intermittently or not at all. The clicking continues even after the burner initially ignites and then goes out, repeating the ignition cycle. Homeowner may report a weak flame on low settings.

Possible Causes:

Dirty burner ports restricting gas flow.
Faulty igniter module.
Incorrect gas regulator pressure.
Misaligned burner cap.
Weak or failing spark electrode.
Grounding issue on the igniter circuit.

Solution:

1

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

Disconnect power to the cooktop at the breaker panel (LOTO).
3

Clean the burner ports using a small wire brush or burner port cleaning tool. Ensure all ports are clear of debris.
4

Inspect the igniter electrode for damage or carbon buildup. Clean with fine sandpaper or replace if necessary.
5

Check the burner cap alignment. Ensure it is properly seated on the burner base.
6

Reconnect power and gas supply. Test the cooktop on low simmer. Observe if the clicking persists.
7

If the clicking continues, use a multimeter to test the igniter module's output voltage (typically 3-4.5V DC during ignition). If the voltage is incorrect, replace the igniter module.

Safety Warning:

Always disconnect power to the cooktop at the breaker panel before performing any repairs. Lockout/Tagout (LOTO) procedures must be followed. Gas leaks can cause explosions and carbon monoxide poisoning. If you smell gas, evacuate the area immediately and call your gas company.

Prevention:

Regularly clean the burner ports with a burner port cleaning tool or a small wire brush. Ensure burner caps are properly aligned. Check the flame pattern periodically to ensure a consistent blue flame. Schedule licensed technician gas appliance inspection annually.

Expert Tip:

If the cooktop has been recently converted from natural gas to propane or vice versa, verify the correct burner orifices are installed. The wrong orifice size can cause flame instability, especially at low settings. Access service mode by pressing and holding the START button for 5 seconds, then pressing the broil button three times. This may allow testing of individual igniters.

Frequently Asked Questions

•How do I adjust the gas regulator on my Whirlpool cooktop?

Gas regulator adjustment requires specialized tools and knowledge. It is best to contact a qualified gas appliance technician to perform this task. Incorrect adjustment can lead to dangerous conditions.

•Where can I find a replacement igniter module for my Whirlpool cooktop?

You can find replacement igniter modules at most appliance parts retailers, both online and in brick-and-mortar stores. You will need the model number of your cooktop to ensure you get the correct part.

•What size are the burner orifices for my Whirlpool cooktop (NG and LP)?

Burner orifice sizes are specific to the cooktop model and the type of gas being used (Natural Gas or Propane). Refer to the cooktop's service manual or contact Whirlpool customer support to obtain the correct orifice sizes for your model and gas type.

Whirlpool Gas Cooktop Clicking Sound During Low Simmer: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I adjust the gas regulator on my Whirlpool cooktop?

•Where can I find a replacement igniter module for my Whirlpool cooktop?

•What size are the burner orifices for my Whirlpool cooktop (NG and LP)?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: