An oven that stays cold typically has a failed heating element or igniter, a temperature sensor that is out of spec, or a control board relay that is not closing. On gas ovens the igniter must glow hot enough to open the gas valve; when it weakens, the oven never heats even though the igniter still glows.
What to Check First
A few quick checks are safe to try before booking a technician:
- Confirm the oven is not in a locked self-clean cycle.
- Check that the correct mode is selected.
- Note any error code on the display.
- Listen for the igniter clicking on a gas oven.
Gas Safety
If you smell gas near the oven, do not operate it. Shut off the gas, ventilate, and contact your gas utility before any repair.
Likely Causes and Fixes
| Symptom | Likely Cause | What the Fix Involves |
|---|---|---|
Oven stays cold | Failed element or igniter | Test and replace the element or igniter |
Runs hot or cold | Sensor out of spec | Test and replace the oven sensor |
No heat, controls on | Relay board fault | Diagnose and replace the relay board |
Notes by Brand
The failure looks a little different across the brands we service. Here is what we check on each:
| Brand | What We Look At |
|---|---|
| Wolf | Bake/broil elements, sensors, and control boards on dual-fuel ovens. |
| Miele | Elements and F1/F2 sensor faults on Generation ovens. |
| Thermador | Elements and GE-platform F-codes. |
| Viking | Bake elements and oven igniters on gas models. |
| Monogram | Relay boards and F-code diagnostics. |
| KitchenAid | RTD sensors and F3 codes on Whirlpool-platform ovens. |
Have a Sub-Zero or Wolf That Needs Attention?
Book online and a brand-focused technician will diagnose it. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
When to Call a Technician
If the oven still will not heat after the basic checks, the element, igniter, sensor, or control needs testing. Book a technician so the correct part is installed the first time.