FSE747 Oven Not Heating or Heating Poorly – What Part Fixes This Problem?
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
If your FSE747 oven doesn’t heat at all, takes too long to get up to temperature, or heats unevenly, the fault is usually one of several replaceable components: the bake/broil element, the oven temperature sensor, a thermal safety device, or the electronic control board/relay. Less commonly, the issue can be wiring or a power-supply problem (a lost leg of 240V). Problems can present suddenly (no heat) or gradually (slow to reach temperature or temperature running high/low). Troubleshooting starts with simple checks—verify the oven has full power and the circuit breaker hasn’t tripped—then moves to component tests. Visual inspection often reveals an obviously broken or blistered element. If elements look intact, a multimeter continuity/resistance check of elements and the oven temperature sensor will quickly narrow the cause. If the sensor and elements are good, the control board or a failed relay/thermal fuse may be the fault.
Common Symptoms
No heat from the oven; oven takes too long to preheat; temperature runs hotter or colder than set; uneven cooking or heating; display shows normal but oven does not heat.
Common Causes
- Broken or burned bake or broil heating element
- Faulty oven temperature sensor (thermistor)
- Failed electronic control board or relay that supplies power to elements
- Thermal fuse or safety thermostat has blown
- Power supply issue (tripped breaker, lost 240V leg) or damaged wiring/terminal block
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 PartsDiscount.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
First confirm full power to the range (both 120V legs). Then visually inspect elements for breaks and test the bake element and oven sensor with a multimeter—an open element or sensor out of spec usually means replace that part.
Frequently Asked Questions
How do I quickly test whether the bake element or oven sensor is bad?
After disconnecting power to the range, remove and visually inspect the element for breaks or blistering. Use a multimeter set to continuity or ohms: the bake element should show continuity (not open). The oven temperature sensor typically reads around 1000–1200 ohms at room temperature (roughly 1100Ω is common). An open element (infinite ohms) or a sensor value far from the expected range indicates that component needs replacing.
Can I replace those parts myself, or should I call a technician?
Many DIY-savvy homeowners can replace elements, sensors, terminal blocks, and even the oven control board if they follow safety steps: disconnect power, document wiring, and use basic hand tools. However, if you’re not comfortable working with 240V circuits, diagnosing control boards, or handling complex wiring, call a qualified appliance technician to avoid electric shock or further damage.
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 PartsDiscount.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 PartsDiscount.com where you can search by model number and get the right part shipped fast.