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Error code reference

Dacor Range Oven Cooktop Error Code C01

Heritage: Shorted key failure

Dacor codesDacor range oven cooktop codes

Heritage: Shorted key failure - a release of the key is not seen for two minutes.

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What C01 means on a Dacor range oven cooktop

The C01 error code on Dacor Heritage ranges and ovens indicates a shorted key failure on the control panel. Specifically, the control board has detected that a key or touch pad input has remained in a continuously active (pressed) state for two minutes without registering a release signal. The control interprets this sustained input as a fault rather than an intentional user action, and triggers the C01 code to protect against unintended appliance behavior.

The control panel on Dacor Heritage appliances uses a membrane keypad or touch interface that sends discrete press and release signals to the main control board. When a key is physically stuck, a membrane layer is making continuous contact, or the control board itself is misreading input signals, the board never receives the expected release event. After two minutes of this condition, the C01 fault is logged and displayed. The failure can originate either in the keypad assembly itself or in the control board's input detection circuitry.

Common contributing factors include debris or liquids beneath or behind the keypad membrane causing a key to short against the contact layer, a warped or delaminated membrane panel, or a faulty ribbon cable connection between the keypad and the control board. In some cases, the control board itself has developed a fault in the input-reading circuit, producing a ghost signal even when the keypad is physically undamaged. Identifying whether the fault is in the keypad or the board typically requires isolating each component.

Source: manufacturer service documentation.

Common causes of C01

  1. 01

    Stuck or physically jammed keypad button

    Part replacement

    A key on the membrane keypad can become physically stuck due to debris, food residue, or a warped panel surface keeping the contact closed. Inspect the control panel surface for any keys that appear depressed, sticky, or unresponsive to touch.

  2. 02

    Moisture or liquid intrusion under the keypad

    Part replacement

    Spills or steam condensation can seep beneath the membrane keypad and create a continuous electrical short across a key contact. Look for discoloration, bubbling, or soft spots on the keypad surface as signs of moisture damage.

  3. 03

    Damaged or delaminated membrane keypad

    Part replacement

    Over time, the adhesive layers in the membrane keypad can separate or crack, causing internal contact layers to touch continuously. A keypad that shows visible creasing, peeling, or dead zones is likely faulty and needs replacement.

  4. 04

    Loose or damaged ribbon cable connection

    Wiring / connection

    The ribbon cable connecting the keypad to the control board can develop a poor connection or intermittent short, causing the board to read a permanent key press signal. Check that the ribbon cable is fully seated and undamaged at both connection points.

  5. 05

    Faulty main control board

    Part replacement

    If the keypad assembly tests as undamaged, the control board's key input detection circuit may have failed and is generating a false continuous signal internally. This is the least common cause but requires board replacement if all other components check out.

See the test procedure for each cause

Frequently asked questions about C01

What does C01 mean on a Dacor range, oven, cooktop?
The C01 code on Dacor Heritage appliances means the control board detected a shorted key condition, where a key or touch input registered as continuously pressed for two minutes without a release being detected. This causes the control to halt normal operation and display the fault code. The issue can originate in the keypad membrane, the ribbon cable, or the control board itself.
Can I fix the C01 error on my Dacor Heritage oven myself?
Some causes of C01 are DIY-accessible. Start by powering off the appliance at the breaker for several minutes and inspecting the control panel for any visibly stuck, sticky, or debris-covered keys. Cleaning around the keypad surface and reseating the ribbon cable connection are reasonable first steps. If the keypad membrane is cracked, peeling, or moisture-damaged, replacing it requires sourcing the correct part and disassembling the control panel, which many experienced DIYers can handle with care.
Is the C01 error on a Dacor oven a safety concern?
The C01 fault itself is a protective response designed to prevent unintended oven operation from a stuck key. Because a shorted key could theoretically trigger or sustain a cooking function without intentional user input, the control flags the fault and limits operation. You should avoid using the appliance until the cause is identified and resolved to ensure safe and predictable control behavior.
Will resetting my Dacor Heritage oven clear the C01 error?
A power reset by turning off the breaker for a few minutes may temporarily clear the C01 code, but if the underlying cause, such as a stuck key, damaged membrane, or faulty board, is still present, the code will return within two minutes of the shorted key condition resuming. A reset is a useful first diagnostic step but is not a permanent fix on its own.
How much does it cost to repair a C01 error on a Dacor oven?
Repair costs depend on the root cause. A replacement membrane keypad for a Dacor Heritage appliance typically falls in the range of $80 to $200 for the part alone, while a new control board can range from $150 to $400 or more depending on the model. Adding professional labor generally brings the total repair cost to somewhere between $200 and $600, depending on the technician's rate and which components need replacement.

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