--- title: How to Check Thermal Components on a Stove, Oven, or Range description: Get your stove, oven or range baking again and keep costs low—learn to test thermal fuse, high-limit thermostat & sensor. UpFix repairs boards—save up to 80%. --- [Skip to content](https://info.upfix.com/kb/how-to-check-thermal-components-on-a-stove-oven-or-range#main-content) English Show submenu for translations ![logo (2)](https://info.upfix.com/hs-fs/hubfs/logo%20(2).png?width=189&height=56&name=logo%20(2).png) Open main navigation Close main navigation - English Show submenu for translations - Website Website Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [UpFix FAQ's](https://info.upfix.com/kb?hsLang=en) 2. [Appliance](https://info.upfix.com/kb/appliance?hsLang=en) # How to Check Thermal Components on a Stove, Oven, or Range ## If your stove or oven still has temperature issues after the control-board repair, perform the thermal-component checks below before contacting tech support or returning the board under warranty. **What you’ll test:** • High-limit thermostat(s) • Thermal fuse / cutoff • Oven temperature sensor (RTD probe) • Surface-unit limiters (if the cooktop is affected) #### 1. Unplug and Cool Down 1. **Disconnect power** – pull the plug or switch the dedicated breaker **OFF**. 2. Wait until every internal surface feels room-temperature; some fuses sit right against the oven liner. --- #### 2. Locate Each Component | Part | Typical Location | Easy Clue | | --- | --- | --- | | Thermal fuse / cutoff | Rear panel or control-board bracket | Small, inline metal can with two wires | | High-limit thermostat | Back wall of cavity or on top of broil element housing | Round “button” thermostat with two terminals | | RTD temperature sensor | Inside oven cavity, rear-upper corner | Long thin probe with two wires | | Surface limiter | Clipped to each radiant element (glass tops) | Tiny metal disc hidden under main top | Remove the back panel or lift the cook-top as your service manual shows; take a quick photo so you can re-route wires later. --- #### 3. Visual Inspection - Look for melted insulation, discoloration, or a blown fuse window. - Any charring means the part must be replaced. --- #### 4. Continuity / Resistance Tests 1. **Set multimeter to Ω or continuity.** 2. **Isolate one wire** from the device so you are not reading the rest of the circuit. | Component | Normal Reading at 70 °F (21 °C) | Diagnosis | | --- | --- | --- | | Thermal fuse | **≈ 0 Ω (beep)** | OL / ∞ Ω = blown – replace | | High-limit thermostat (not tripped) | **≈ 0 Ω** | OL = opened by overheat – replace; also check airflow & fans | | RTD oven sensor | **≈ 1,080 Ω ±10 Ω** | \<950 Ω or \>1,250 Ω – replace | | Surface limiter | **≈ 0 Ω** closed | OL when cool = faulty limiter | *(Exact numbers vary by brand; consult the tech sheet tucked behind your control panel.)* *Here are some other examples: Temperature F (C) Resistance (Ohms) 100F (38C) 1143 Ohms 200F (94C) 1350 Ohms 300F (149C) 1553 Ohms 350F (177C) 1654 Ohms 400F (204C) 1753 Ohms 500F (260C) 1949 Ohms 600F (316C) 2142 Ohms 700F (371C) 2331 Ohms 800F (427C) 2516 Ohms 900F (483C) 2697 Ohms 1000F (538C) 2874 Ohms* --- #### 5. Reassemble and Verify 1. Replace any failed part with the **exact temperature rating**. 2. Restore power and run a 350 °F bake cycle to confirm the oven preheats within 10–15 minutes and stays ±15 °F of the set temp. --- #### 6. Still Not Heating or Overheating After Good Thermal Checks? A healthy sensor & fuse set rules out most simple causes. The next likely culprit is the electronic control board (ERC/EOC) misreading temperature or mis-driving relays. **Good news:** UpFix can repair that original control board, saving you **up to 80 %** compared with ordering a brand-new board (many are discontinued). We’ll: - Perform a full diagnostic on arrival and document what our techs found and fixed. - Turn most boards around in 24 hours. - Provide a detailed receipt with tech notes inside the box *and* online. **Ready to get cooking again?** Send your board to UpFix today and keep a perfectly good appliance out of the landfill. Questions? Call/Text us 9 am – 5 pm EST or start your repair order at **UpFix.com**. --- > **Tip:** Always eliminate wiring shorts, burned connectors, or stuck relays on the control board before powering up a new thermal fuse—otherwise it can blow again instantly.   - [FAQs](https://info.upfix.com/kb/faqs?hsLang=en#main-content) - [Shipping](https://info.upfix.com/kb/faqs?hsLang=en#shipping) - [How It Works](https://info.upfix.com/kb/faqs?hsLang=en#how-it-works) - [Warranty and Returns](https://info.upfix.com/kb/faqs?hsLang=en#warranty-and-returns) - [General](https://info.upfix.com/kb/faqs?hsLang=en#general) - [Automotive](https://info.upfix.com/kb/automotive?hsLang=en#main-content) - [ABS Module](https://info.upfix.com/kb/automotive?hsLang=en#abs-module) - [LCD Display](https://info.upfix.com/kb/automotive?hsLang=en#lcd-display) - [Instrument Cluster](https://info.upfix.com/kb/automotive?hsLang=en#instrument-cluster) - [Climate Control](https://info.upfix.com/kb/automotive?hsLang=en#climate-control) - [Mileage Odometer Programming](https://info.upfix.com/kb/automotive?hsLang=en#mileage-odometer-programming) - [ECU/ECM Engine Control](https://info.upfix.com/kb/automotive?hsLang=en#ecu-ecm-engine-control) - [TCM Transmission Control](https://info.upfix.com/kb/automotive?hsLang=en#tcm-transmission-control) - [PCM Power-train Control](https://info.upfix.com/kb/automotive?hsLang=en#pcm-power-train-control) - [Semi-Truck Electronics Repair](https://info.upfix.com/kb/automotive?hsLang=en#semi-truck-electronics-repair) - [FICM Fuel Injector Control Module Repair](https://info.upfix.com/kb/automotive?hsLang=en#ficm-fuel-injector-control-module-repair) - [Power Steering Module](https://info.upfix.com/kb/automotive?hsLang=en#power-steering-module) - [TIPM & Fuse Box](https://info.upfix.com/kb/automotive?hsLang=en#tipm-fuse-box) - [BCM Body Control Module](https://info.upfix.com/kb/automotive?hsLang=en#bcm-body-control-module) - [LCM Light Control Module](https://info.upfix.com/kb/automotive?hsLang=en#lcm-light-control-module) - [ECU Programming](https://info.upfix.com/kb/automotive?hsLang=en#ecu-programming) - [Tail Light Repair](https://info.upfix.com/kb/automotive?hsLang=en#tail-light-repair) - [Tesla Wall Charger](https://info.upfix.com/kb/automotive?hsLang=en#tesla-wall-charger) - [Warranty For Automotive Parts](https://info.upfix.com/kb/automotive?hsLang=en#warranty-for-automotive-parts) - [Tech Support - Auto](https://info.upfix.com/kb/automotive?hsLang=en#tech-support-auto) - [Battery](https://info.upfix.com/kb/automotive?hsLang=en#battery) - [Appliance](https://info.upfix.com/kb/appliance?hsLang=en#main-content) - [Dishwasher Control Board](https://info.upfix.com/kb/appliance?hsLang=en#dishwasher-control-board) - [HVAC/Furnace Control Board](https://info.upfix.com/kb/appliance?hsLang=en#hvac-furnace-control-board) - [Stove/Oven Control Board](https://info.upfix.com/kb/appliance?hsLang=en#stove-oven-control-board) - [Refrigerator Control Board](https://info.upfix.com/kb/appliance?hsLang=en#refrigerator-control-board) - [Microwave Control Board](https://info.upfix.com/kb/appliance?hsLang=en#microwave-control-board) - [Massage Chair Control Board](https://info.upfix.com/kb/appliance?hsLang=en#massage-chair-control-board) - [Warranty For Appliance Control Boards](https://info.upfix.com/kb/appliance?hsLang=en#warranty-for-appliance-control-boards) - [Freezer](https://info.upfix.com/kb/appliance?hsLang=en#freezer) - [Fitness](https://info.upfix.com/kb/fitness?hsLang=en#main-content) - [Elliptical Control Board](https://info.upfix.com/kb/fitness?hsLang=en#elliptical-control-board) - [Treadmill Control Board](https://info.upfix.com/kb/fitness?hsLang=en#treadmill-control-board) - [Stair Climber Control Board](https://info.upfix.com/kb/fitness?hsLang=en#stair-climber-control-board) - [Warranty For Fitness Control Boards](https://info.upfix.com/kb/fitness?hsLang=en#warranty-for-fitness-control-boards) - [Industrial](https://info.upfix.com/kb/industrial?hsLang=en#main-content) - [VFD Inverter/Variable Frequency Drive](https://info.upfix.com/kb/industrial?hsLang=en#vfd-inverter-variable-frequency-drive) - [Servo Driver Controller](https://info.upfix.com/kb/industrial?hsLang=en#servo-driver-controller) - [HMI](https://info.upfix.com/kb/industrial?hsLang=en#hmi) - [Warranty For Industrial Equipment](https://info.upfix.com/kb/industrial?hsLang=en#warranty-for-industrial-equipment) - [Agriculture](https://info.upfix.com/kb/agriculture?hsLang=en#main-content) - [General](https://info.upfix.com/kb/agriculture?hsLang=en#general) - [Commercial Truck](https://info.upfix.com/kb/commercial-truck?hsLang=en) - [Commercial Laundry](https://info.upfix.com/kb/commercial-laundry?hsLang=en) [![Chill listening crop-3](https://info.upfix.com/hs-fs/hubfs/VECTOR%20-%20UpFix%20Registered%20logo-%20transparent.png?width=168&height=55&name=VECTOR%20-%20UpFix%20Registered%20logo-%20transparent.png "Chill listening crop-3")](http://upfix.com) UpFix FAQ's Copyright © 2026, MyAirbags