Gas Ovens: the Igniter Is the Usual Cause
On a gas Wolf oven, the bake igniter does two jobs: it glows to ignite the gas and it draws enough current to open the safety valve. As an igniter ages, it can still glow but no longer pull enough current to open the valve, so the oven never lights or takes a very long time. That is why a slow or weak preheat, or an oven that will not light at all, so often traces back to the igniter.
Because a weakening igniter can look like it is working, it needs to be tested under load rather than judged by eye.
Dual-Fuel Ovens: Elements, Sensors, and Relays
On a dual-fuel Wolf, the oven is electric. Here the causes shift to a bake or convection element that has failed, a temperature sensor that is reading incorrectly and telling the control the oven is already hot, or a relay on the control board that no longer switches power to the element. A visibly broken element is easy to spot, but a sensor or relay fault needs testing.
We diagnose by model: on gas, we test the igniter and valve; on dual-fuel, we test the elements, the sensor, and the control before quoting the repair.
Symptom Reference
| Symptom | Likely Cause | What We Do |
|---|---|---|
| Gas oven will not light | Weak or failed bake igniter | Test under load, replace igniter |
| Slow gas preheat | Aging igniter | Replace igniter |
| Dual-fuel oven cold | Failed bake element | Test and replace element |
| Wrong temperature | Temperature sensor drift | Test and replace sensor |
A Weak Igniter Looks Like It Works
A gas oven igniter can still glow while failing to draw enough current to open the gas valve, so an oven that will not heat should have the igniter tested under load, not judged by sight.
Book a Repair with a Specialist
Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.