Frigidaire Professional Gas Range: Oven Igniter Slow to... | appliancefaults.com

Technical Background:

The oven control board (MCU) sends 120V AC to the igniter, which is a resistance-based heating element. As the igniter heats up, its resistance drops, allowing more current to flow. When the current reaches a certain threshold, the MCU opens the gas valve. The RTD (Resistance Temperature Detector) sends temperature feedback to the MCU.

Symptoms:

The oven igniter takes an excessively long time (around 2 minutes) to ignite the gas and start the oven preheating process. The homeowner might also observe weak or flickering igniter glow.

Possible Causes:

Weak oven igniter
Low gas pressure
Faulty oven temperature sensor (RTD)
Defective oven control board (MCU)
Blocked burner ports
Incorrect gas type setting

Solution:

1

Turn off the gas supply to the range at the shutoff valve.
2

Unplug the range from the breaker panel to disconnect power.
3

Remove the oven racks and bottom panel to access the igniter and burner assembly.
4

Visually inspect the igniter for cracks or damage. If damaged, replace it with an OEM igniter. Disconnect the igniter wires using a 1/4-inch nut driver.
5

Check the gas supply pressure using a manometer at the gas valve test port. Should be around 4-5 inches water column for natural gas, 10-11 inches for LP. If pressure is low, contact the gas company.
6

Plug the range back in and turn on the breaker. Verify 120V AC is reaching the igniter during the preheat cycle using a multimeter.
7

If voltage is present, and the igniter is new, the control board (MCU) may be faulty. Replace the MCU. Disconnect power before replacing components.

Safety Warning:

Always turn off the gas supply and disconnect power to the range before performing any repairs. Lock Out/Tag Out (LOTO) procedures must be followed to prevent accidental energization. 120V AC is present, so exercise caution.

Prevention:

Periodically clean the oven burner ports with a burner brush to prevent blockages. Avoid using harsh chemicals or abrasive cleaners that can damage the igniter.

Expert Tip:

Some Frigidaire licensed technician ranges have a service mode. To access it, simultaneously press and hold the Bake and Broil buttons for 3 seconds. This mode allows for diagnostic tests and calibration settings. This can show error history even without a specific error code being displayed.

Frequently Asked Questions

•How do I adjust the gas pressure regulator on my Frigidaire Professional range?

The gas pressure regulator should only be adjusted by a qualified gas technician. Improper adjustment can lead to dangerous conditions. Typically, there's an adjustment screw under a cap on the regulator. Use a manometer to verify proper pressure during adjustment.

•What is the correct resistance value for the oven RTD sensor at room temperature (70F)?

The resistance value varies depending on the specific model. Refer to the technical data sheet for your Frigidaire Professional range. Generally, it will be in the range of 1000-1200 ohms at 70F. An out-of-range reading indicates a faulty sensor.

•Where can I find the technical data sheet for my specific Frigidaire Professional range model?

The technical data sheet is often located inside the range, either taped to the back panel or inside the control panel area. You can also find it online by searching for your model number followed by 'technical data sheet' or 'service manual'. Frigidaire's website or appliance parts retailers may have it available for download.

Frigidaire Professional Gas Range: Oven Igniter Slow to Light - Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I adjust the gas pressure regulator on my Frigidaire Professional range?

•What is the correct resistance value for the oven RTD sensor at room temperature (70F)?

•Where can I find the technical data sheet for my specific Frigidaire Professional range model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: