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🎯 Oven Running Wrong Temperature

Oven Running the Wrong Temperature in Petaluma, CA

Food that consistently over-bakes or under-bakes, even when you follow the recipe exactly, usually means the oven isn't actually reaching the temperature it displays.

Call: (707) 790-5050

An oven running significantly hotter or colder than its setting isn't just inconvenient, it can burn food and pose a fire risk. Confirm it with an oven thermometer before calling (707) 790-5050.

Diagnosis

Why is my oven running hot or cold?

Almost always the temperature sensor, a thin probe inside the oven cavity that tells the control board the actual internal temperature. When it drifts out of calibration or fails, the board over-corrects or under-corrects the heating cycle.

Faulty Temperature Sensor

The sensor is a metal probe mounted inside the oven wall, usually near the back. It reads the internal temperature continuously and reports it to the control board, which cycles the heating element or gas valve on and off to hold the set temperature. A drifting or failed sensor causes the board to misjudge when to stop heating.

Signs this is the cause: food consistently over-bakes or under-bakes at the correct time and temperature setting, oven runs noticeably hotter or colder than the display shows.

Typical repair cost: $100 – $200

Sensor Touching the Oven Wall

If the sensor probe has shifted and is physically touching the oven's interior wall, it reads the wall's temperature instead of the air temperature, throwing off every reading. This is a simple, no-cost fix if it's the cause.

Typical repair cost: $0, repositioning only

Needs Recalibration, Not Replacement

Many ovens have a built-in calibration setting in the control panel that lets you offset the displayed temperature by a set number of degrees. If the sensor itself is healthy but reads consistently a fixed amount off, recalibrating solves it without replacing any part.

Typical repair cost: $0 – $100

Failed Control Board

If the sensor tests accurate but the oven still runs at the wrong temperature, the control board itself may be misreading or mishandling the sensor's signal.

Typical repair cost: $200 – $400

Before You Call

What to check first

Test with an inexpensive oven thermometer.

Set the oven to 350°F, let it fully preheat, and check the actual reading. A gap of more than 25°F confirms the sensor or calibration is off, rather than your recipe or technique.

Check for a built-in calibration setting.

Many models let you adjust the displayed temperature by a fixed offset in the settings menu, worth checking before assuming a part has failed.

Look at where the sensor probe sits.

If accessible and visible, confirm it isn't touching the oven's back or side wall.

Repair Costs

Oven temperature repair cost, Petaluma 2026

Cause	Typical Repair Cost
Sensor repositioning (no part needed)	$0
Recalibration only	$0 – $100
Temperature sensor replacement	$100 – $200
Control board replacement	$200 – $400

We test with a calibrated thermometer before recommending any part replacement.

FAQ

Oven wrong temperature, questions

Use a separate oven thermometer, not the built-in display, set the oven to a round number like 350°F, let it fully preheat, and compare. A gap of more than 25°F points to a real fault.

No. An oven running significantly above its set temperature can burn food and, in some cases, pose a fire risk. Have the temperature sensor tested before continuing to use it.

Sometimes. If the sensor is accurate but consistently off by a fixed amount, a calibration adjustment in the settings menu can solve it at no cost.

Usually just baking, since broil often uses a separate heating element and, on many models, a less precise temperature control.

Book Oven Repair in Petaluma

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