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Error code reference

Frigidaire Cooktop Error Code E7

Left Rear zone control defective key sensor.

Frigidaire codesFrigidaire cooktop codes

Left Rear zone control defective key sensor.

First step from the service manual

Replace left side cook zones touch control.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What E7 means on a Frigidaire cooktop

The E7 error code on a Frigidaire cooktop indicates a defective key sensor in the left rear cooking zone control. This fault is specific to the capacitive or membrane touch sensing circuit that detects user input for the left rear burner zone. When the control board receives an invalid or out-of-range signal from that sensor, it flags the E7 fault and typically disables the affected zone to prevent unintended operation.

The left side cook zones touch control is an integrated assembly that combines the touch sensing elements, the control circuitry, and the interface logic for the burners on the left side of the cooktop. A defective key sensor can result from physical damage to the touch surface, contamination beneath or on the glass that disrupts capacitive sensing, a failed sensing element within the control board assembly, or internal component failure due to heat exposure or electrical stress over time.

Because the E7 fault points directly to the left rear zone sensor rather than a wiring or communication error, the primary corrective action is replacement of the left side cook zones touch control assembly. Attempting to clean the touch surface or reset the unit may temporarily suppress the error, but if the sensor itself has failed internally, the fault will return. Technicians should inspect the touch surface for cracks, moisture intrusion, or residue before replacing the assembly, as surface contamination can sometimes mimic a sensor failure.

Source: manufacturer service documentation.

Common causes of E7

  1. 01

    Failed touch control assembly

    Part replacement

    The internal sensing element within the left side cook zones touch control has failed due to age, heat stress, or electrical fault. This is the most common cause and requires replacement of the touch control assembly.

  2. 02

    Contamination on the touch surface

    Wiring / connection

    Grease, moisture, or food residue on or beneath the glass near the left rear zone can interfere with capacitive sensing and trigger E7. Thoroughly cleaning the surface and retesting can rule this out before ordering parts.

  3. 03

    Moisture intrusion into the control

    Part replacement

    Liquid spills that seep into the touch control assembly can cause short circuits or corrosion on the sensor contacts. Inspect the control area for signs of moisture damage or corrosion.

  4. 04

    Physical damage to the touch surface or control

    Part replacement

    Cracks in the glass cooktop surface or impact damage near the left rear zone can permanently disrupt the sensor. Visually inspect the glass and touch control area for visible cracks or chips.

  5. 05

    Loose or damaged wiring connection

    Wiring / connection

    A loose ribbon cable or harness connector between the touch control assembly and the main control board can cause intermittent or false sensor readings. Inspect all connectors to the left side touch control for secure seating and damage.

See the test procedure for each cause

Frequently asked questions about E7

What does E7 mean on a Frigidaire cooktop?
E7 on a Frigidaire cooktop indicates that the left rear zone key sensor has been detected as defective by the control system. The touch control responsible for the left rear burner is sending an invalid signal or no signal at all. This fault disables or disrupts that cooking zone and requires attention to the left side cook zones touch control assembly.
Can I fix the E7 error myself on a Frigidaire cooktop?
A knowledgeable DIYer can start by cleaning the touch surface thoroughly and checking for any visible damage or loose connectors. However, if the internal sensor has failed, the left side cook zones touch control assembly will need to be replaced, which involves disconnecting power, accessing the control, and installing the new part. If you are not comfortable working with appliance electronics, a qualified technician should perform the replacement.
Is it safe to use my Frigidaire cooktop while E7 is displayed?
Using the cooktop with an active E7 error is not recommended. A defective key sensor can cause the left rear zone to behave unpredictably, either failing to respond or potentially activating in an unintended way. It is best to avoid using the affected zone until the touch control has been inspected and repaired.
Will resetting my Frigidaire cooktop clear the E7 error?
Resetting the cooktop by cutting power at the breaker for a few minutes may temporarily clear the E7 error, but if the touch control sensor has physically failed, the code will return once the unit powers back on. A reset is useful for ruling out a one-time glitch, but a recurring E7 code confirms that the touch control assembly needs to be replaced.
How much does it cost to repair an E7 error on a Frigidaire cooktop?
Repair costs vary depending on the specific cooktop model and whether you hire a technician or do it yourself. The left side cook zones touch control assembly typically falls in the range of $80 to $200 for the part alone. Adding professional labor, total repair costs can range from $150 to $350 or more depending on your location and service rates.

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