mypros+
Error code reference

Dacor Range Error Code F0

Shorted or jammed input device detected, possibly caused by shorted wires or a defective membrane switch.

Dacor codesDacor range codes

Shorted or jammed input device detected, possibly caused by shorted wires or a defective membrane switch.

First step from the service manual

Check for shorted wires and inspect the membrane switch.

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

MyPros+ Max

Get the full diagnostic procedure for F0.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F0 means on a Dacor range

The F0 error code on a Dacor range indicates that the control board has detected a shorted or jammed input device. This typically points to a problem in the user interface circuit, specifically the membrane switch keypad that sits on the front control panel. The control board continuously monitors input signals from the membrane switch, and when it detects a persistent or stuck signal, it throws the F0 fault to prevent unintended operation of the appliance.

The most common hardware cause is a failed membrane switch, which is the flat, flexible keypad assembly behind the control panel face. These switches can fail internally due to heat exposure, moisture intrusion, or simple wear over time. When a membrane switch shorts internally, it sends a continuous signal to the control board as if a button is being held down. Shorted or pinched wiring between the membrane switch and the control board can produce the exact same symptom, making wiring inspection an important first step.

Diagnosing F0 requires checking the wiring harness that connects the membrane switch to the main control board for any visible damage, pinching, or contact between bare conductors. If the wiring appears intact, the membrane switch itself should be disconnected and the range powered on to see if the fault clears. If it does, the membrane switch is the likely culprit. If the fault persists with the switch disconnected, the control board may be interpreting phantom signals internally and could require replacement.

Source: manufacturer service documentation.

Common causes of F0

  1. 01

    Defective membrane switch

    Part replacement

    The membrane switch keypad can fail internally, causing one or more contacts to short together and send a continuous stuck-key signal to the control board. This is the most frequent cause of F0 and usually requires replacing the membrane switch assembly.

  2. 02

    Shorted wiring harness

    Wiring / connection

    The wiring between the membrane switch and the control board can become pinched, frayed, or damaged, causing two conductors to contact each other and simulate a jammed input. Inspect the full length of the harness for any visible damage or contact points.

  3. 03

    Moisture or debris under the keypad

    Wiring / connection

    Liquid or food debris that has worked its way under the membrane switch surface can bridge contacts and create a persistent short. Carefully inspect the keypad surface and surrounding area for signs of contamination.

  4. 04

    Faulty control board

    Part replacement

    If the membrane switch and wiring both check out as undamaged, the main control board itself may be misreading input signals due to an internal component failure. This is the least common cause but requires board replacement if confirmed.

See the test procedure for each cause

Frequently asked questions about F0

What does F0 mean on a Dacor range?
The F0 code on a Dacor range means the control board has detected a shorted or jammed input device, most commonly the membrane switch keypad on the control panel. The board sees a persistent signal as if a button is stuck or continuously pressed. This can be caused by a failed membrane switch, damaged wiring, or moisture under the keypad. The range displays this fault to prevent responding to false input signals.
Can I fix the F0 error on my Dacor range myself?
In some cases, yes. Start by powering the range off at the breaker for a few minutes and powering it back on to see if the code returns. If it does, inspect the wiring harness connected to the membrane switch for visible damage or pinching. Replacing a membrane switch is a repair many experienced DIYers can handle, though working safely with the range fully disconnected from power is essential.
Will resetting the range clear the F0 error code?
A reset by cutting power at the breaker may temporarily clear the F0 code, but if the underlying cause is a faulty membrane switch or shorted wire, the code will return once the range powers back up. A reset is a useful first diagnostic step to determine if the fault is intermittent or persistent, but it is not a fix for a hardware failure.
Is it safe to use my Dacor range when F0 is displayed?
It is generally not recommended to operate the range while the F0 code is active, because a shorted or jammed input device could cause the control board to respond to unintended commands. The safest course of action is to power the range off at the breaker until the cause of the fault has been identified and corrected.
How much does it cost to repair a Dacor range F0 error?
Repair costs depend on which component has failed. A replacement membrane switch typically falls in the range of $50 to $150 for the part alone. If a control board replacement is needed, parts costs can range from $150 to $400 or more. Adding professional labor, total repair costs can range from $150 to $500 or higher depending on the specific model and technician rates in your area.

Related Dacor range codes

All Dacor range codes
View all 23 Dacor range codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass