Whirlpool WFG320M0BS3 Gas Range – Common Problems & How to Fix Them
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
Brief explanation: The WFG320M0BS3 is a 30" freestanding Whirlpool gas range. The most common service issues are burners that won't light, continuous clicking, an oven that won't heat or heats unevenly, and gas odors. Most problems trace back to ignition components (surface electrodes or oven/bake igniter), clogged burner ports, ignition module or wiring, the oven temperature sensor, or rarely the gas valve/control. Step-by-step diagnostic & repair steps: 1) Safety & initial checks - Turn off the range and shut off the gas at the supply if you smell gas. If you smell a strong gas odor, leave the home and call the gas company or emergency services. - Unplug the range or switch off the breaker before doing electrical checks. - Verify the model/serial (usually on a tag behind the oven door or at the back) before ordering parts. 2) If surface burners won't light or click continuously - Visual check: Remove burner cap and head, inspect ports for food or grease clogging. Clean ports with a small brush and a pin; do not enlarge the ports. - Dry electrodes: Moisture from spills or cleaning commonly causes continuous clicking. Remove caps and dry with a soft cloth and let the area air-dry; you can use a hairdryer on low to speed drying. - Inspect electrode alignment: The spark electrode tip should be near the burner port (~1/8" gap). Gently re-seat if misaligned. - Test for spark: With the top powered (but dry), turn a burner to ignition and watch for a visible spark at the electrode. No spark indicates a faulty electrode, wiring, or ignition module. - Check wiring and ground: Inspect the harness and connectors to the electrode and ignition module for corrosion or looseness. - Swap burner parts: If one burner works but another doesn't, swap the electrode and cap between positions to isolate the faulty part. - Replace surface electrode or ignition module if no spark after cleaning and verifying wiring. 3) If oven/bake won't light or oven is slow to heat - Observe the bake igniter: Open the oven door and start a bake cycle. The igniter should start glowing within 30–90 seconds and stay glowing until the gas valve opens. If it never glows, or glows dimly and oven never lights, igniter is suspect. - Simple continuity check: With power off, disconnect the igniter and check continuity with a multimeter. Some gas igniters can show open or very high resistance when bad. - Current-draw check (advanced): A working hot surface igniter typically pulls current (amps) sufficient to open the gas valve; if it glows but doesn't draw enough, the valve won't open. Technicians measure amperage to confirm; if you don’t have equipment, replace the igniter if it glows weakly or slowly. - Check the oven temperature sensor: If oven heats but is inaccurate, test sensor resistance (approx. 1100 ohms at room temp for many Whirlpool sensors — consult exact spec). If out of range, replace sensor. - Check for error codes on the control (if present) and consult the service manual for diagnostics. If the control board doesn’t send voltage to the igniter, the control or wiring may be faulty. 4) If burners light but flame is weak or uneven - Clean burner ports and caps thoroughly. - Check regulator and gas supply pressure (this is normally a job for a licensed gas technician). - Inspect burner cap seating; misaligned caps produce weak or yellow flames. 5) If you detect a gas smell - Do not operate the appliance. Shut off gas supply immediately. Ventilate the area. Do not use electrical switches, phones, or open flames. Call your gas utility or a qualified service technician. 6) Replacing common parts (general overview) - Surface electrode/igniter replacement: Remove cooktop grates and burner caps, remove screws securing burner base, disconnect electrode wiring, replace electrode, reassemble and test. - Oven/bake igniter replacement: Disconnect power and gas, access igniter from inside oven (remove bottom panel), disconnect igniter wires, unbolt igniter from bracket, install new igniter, reassemble, restore power and gas, and test oven operation. - Ignition module replacement: Access module (usually behind control panel), disconnect wiring harnesses, replace module, and test all burners and oven ignition. End safety note: Always shut off power and gas before working on gas appliance components. If you are uncomfortable doing gas or electrical work, or if the repair involves the gas valve or regulator, hire a licensed appliance technician or gas service professional. If you ever smell a strong gas odor, evacuate and call emergency services or your gas utility immediately.
Common Symptoms
Burners won’t light or click continuously; oven won’t heat or takes a long time to reach temperature; weak or yellow burner flame; persistent gas odor; uneven cooking.
Common Causes
- Clogged burner ports or misaligned burner caps
- Faulty surface electrode (spark igniter) or oven bake igniter
- Defective ignition/spark module or wiring/connectors
- Failed oven temperature sensor or control board
- Gas supply/regulator or gas valve issues
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
To confirm a bad oven igniter: start a bake cycle—if the igniter glows dimly or slowly and the oven never lights, the igniter is usually the failed part and should be replaced.
Frequently Asked Questions
How do I find the correct replacement part for my WFG320M0BS3?
Locate the model and serial tag on your range (usually behind the oven door or on the back). Use that exact model/serial when searching on Whirlpool’s parts site or reputable parts retailers. Cross-check part diagrams and confirm compatibility before ordering.
Can I replace the oven igniter or burner igniter myself?
Yes — many homeowners can replace surface electrodes and oven igniters with basic tools. Always unplug the range and shut off gas before starting. For oven igniters, access is usually inside the oven (remove bottom panel), disconnect the igniter wires, unbolt and replace. If the repair involves the gas valve, regulator, or you detect a strong gas smell, hire a licensed technician.
Related How-To Videos
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at ProsourceParts.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to ProsourceParts.com where you can search by model number and get the right part shipped fast.