How to Troubleshoot a Frigidaire Electric Oven That Won't Heat

ID: 207232

Description: [youtubevideo|ZcVVpyGjjYw]Use this guide to...

Steps:

1. Turn a surface burner knob to its highest setting and wait to see if it glows or heats.
2. If all burners stay cold, the range is not receiving 240 V and the fault is electrical, not inside the oven.
3. Set the oven to broil and watch for heat from the upper element.
4. Working broil with cold bake localizes the fault to the bake element or its control circuit.
5. If broil also fails, suspect the control board, wiring harness, or incoming voltage.
6. Set the multimeter to AC volts and partly remove the range plug so the prongs are visible.
7. Touch one probe to the left hot prong and the other to the center neutral and read about 120 V.
8. Repeat between the right hot prong and neutral for the second 120 V leg.
9. Measure directly between the two outer hot prongs and confirm about 240 V.
10. Always keep fingers clear of metal prongs and wear rubber gloves when probing live voltage.
11. Cycle the double-pole breaker if any reading is low; call an electrician if voltage is still incorrect.
12. Unplug the range and pull it forward to reach the rear terminal block.
13. Look for melted plastic, loose screws, or charred wires on the block and cord leads.
14. Re-energize the range briefly and probe center to each outer post for ~120 V and across both outers for ~240 V.
15. Disconnect power before touching the terminal hardware.
16. Replace the block and any damaged wiring if the readings are wrong or the hardware is burned.
17. Open the oven and examine the lower bake element for cracks, blisters, or burn-through spots.
18. A visibly damaged element must be replaced before further testing.
19. Remove the two screws securing the element mounting plate to the rear wall of the cavity.
20. Pull the element forward just enough to expose the two spade terminals and wires.
21. Clamp the wires to the liner so they cannot retract behind the wall.
22. Slide the terminals off the element, install the new element, and push it back into position.
23. Reinstall the mounting screws and remove the clamps.
24. Slide the stove away from the wall and unplug it.
25. Use a quarter-inch nut driver to remove the screws securing the upper and lower rear metal panels.
26. Lift the panels off, keeping track of their orientation and the screw locations.
27. Disconnect one wire from the bake element to isolate it.
28. Set the multimeter to ohms and touch a probe to each element terminal.
29. A healthy element reads between 10 Ω and 20 Ω; OL or very high resistance means it is open and must be replaced.
30. Locate the sensor harness near the right-hand middle of the back panel and unplug it.
31. With the meter on ohms, place probes on the two sensor pins.
32. A normal sensor reads 1050 Ω–1100 Ω at room temperature; any large deviation indicates replacement.
33. Remove the single mounting screw that holds the sensor to the liner.
34. Rotate or pull the sensor straight out, guiding the harness through the opening.
35. Match the new sensor’s probe length and connector to the original.
36. Insert the new sensor, reinstall the screw, and reconnect the harness securely.
37. Clip meter leads to the bake output wires on the control board, referencing your wiring diagram or the yellow and orange leads in the video.
38. Plug the range in, set the clock, then start a 375 °F bake cycle.
39. A good board supplies about 240 V AC during the preheat.
40. Anything below roughly 160 V indicates the board relay has failed.
41. Keep hands away from live terminals while performing this energized test.
42. Unplug the range and photograph all wire positions on the board for reference.
43. Use needle nose pliers to pull the five spade wires and the large connector straight off the board.
44. Support the board while removing the four Phillips screws that secure it to the frame.
45. Mount the replacement board with the same screws and transfer or apply the new overlay if provided.
46. Reinstall each wire on its matching labeled terminal, using the photo to verify placement and pressing until fully seated.
47. Restore power, set the clock, and start a bake cycle to confirm the element energizes correctly.
48. Disconnect power and remove the three 3⁄8 inch nuts securing the cord conductors to the old block.
49. Unscrew the two mounting screws and the green strap screw to release the block.
50. Align the new block with the chassis holes and fasten it with the supplied screws.
51. Reattach the grounding strap if you use a three-wire cord; omit it for a four-wire setup.
52. Place the range wires on the correct studs and tighten the nuts until there is no side-to-side movement.
53. Verify the cord has a strain relief to prevent future loosening.
54. Position the upper and lower rear panels, aligning their screw holes with the frame.
55. Install all quarter-inch screws and tighten them evenly.
56. Secure the power cord lugs to the terminal block posts using the provided hex nuts, then torque snugly.
57. Push the range back, plug it in, and run a bake cycle to verify full heat.
58. Some models include a thermal fuse on the rear sheet-metal; test it for continuity and replace if open.
59. Trace the wiring harness between the control board and elements for breaks or burnt connectors that need repair.