What Fan Speed Wont Change means on your Dacor range hood (dacor range hood fan speed not changing)
Dacor gives a range hood owner no code for this, so we describe what is actually happening instead. A fan that runs, but is stuck at one speed regardless of which button is pressed, points toward the speed-selection circuit rather than the motor or the power supply, since the motor is clearly able to run.

Symptoms
A Dacor range hood in this condition usually shows some combination of the following, so match them against your own range hood before booking.
- The fan runs continuously at the same speed no matter which speed button is pressed.
- Buttons give normal tactile or visual feedback, but airflow does not change.
- The stuck speed may be the last one used before the problem started.
- Turning the fan fully off and back on does not change the outcome.
Common causes
Diagnosis on a Dacor range hood means ruling causes out rather than guessing, and these are the ones that matter for Fan Speed Wont Change on a range hood.
- Stuck or worn speed selector switch — a mechanical switch that no longer moves cleanly between positions.
- Failed speed-control capacitor — on some motor designs, a capacitor sets intermediate speeds and its failure can lock the fan at one speed.
- Control board failure — the board is not sending different speed signals even though the buttons register a press.
- Wiring failure between the switch and motor — a short or break affecting only the speed-selection wires.
Troubleshooting steps you can try
Nothing below requires opening the range hood up, and every step rules something out about Fan Speed Wont Change before a technician touches your Dacor range hood.
- Turn the fan fully off, wait a few seconds, and try a different speed setting from a cold start.
- Try every speed button in turn to confirm whether all are stuck at one speed or only some.
- Note which speed the fan is stuck at, since this can help a technician isolate the problem faster.
- Avoid repeatedly pressing buttons, which will not resolve a hardware-level speed problem.
- Book a technician if the fan stays at one speed after a full power cycle.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the control switch, control board, and motor speed capacitor. The right part for your Dacor range hood is matched from its model and serial number, and confirming which component failed keeps the range hood repair to what it actually needs.
When to call a technician
A technician tests the speed selector switch and, on capacitor-controlled motors, the run capacitor, before replacing the control board. This is rated Low severity, so there is no emergency on the range hood — but if Fan Speed Wont Change keeps returning to the range hood, have the cause confirmed before a part is bought. Nobody here works for Dacor; we are an independent service, and the work we do on your range hood is warranted for 30 days.
Related help and Dacor resources
If the checks above did not clear the Fan Speed Wont Change condition, book a technician for the range hood. Our range hood problem index covers the neighboring problems, and www.dacor.com carries the range hood spec.