DHW421
Dacor Discovery DHW421 Hood Repair
Most common issues on this model
- Auto-off timer
- Filter-clean reminder
- Grease filters
- Wall mounting and chimney alignment
The DHW421 is a 42-inch wall-mount range hood from the Discovery line, electric, with metal grease filters. The width comes from the number. A 42-inch hood fits above a wider range or a cooktop with an extra burner, and it mounts to the wall rather than hanging from the ceiling.
With a wall hood, mounting is the first thing we look at, because a loose bracket can twist the canopy and make the filters rattle. Next come the two timers: the blower stops by itself after 4 hours, and a reminder tells you to clean the filters after 30 hours. If either does not behave, we test the control. Then we check the filters and the lights.
We take the exact model from the label so that we order the right part. The price is written before work, and repairs are covered for 30 days.
Key features
- Wall-mount range hood, 42 inches wide (from the number)
- Discovery line
- Blower shuts off automatically after 4 hours
- Reminder to clean filters after 30 hours
- Metal grease filters
Why does my hood canopy rattle?
A bracket may be loose, or a filter may not be seated. We check the wall mounting and each filter first, since those are small repairs, and only then look at the blower wheel and motor.
What does the 30-hour reminder mean?
It is a prompt to clean the filters after 30 hours of use. If the prompt persists after you have cleaned them, we reset it or test the control to see why it is not clearing.
Does the blower always stop after 4 hours?
On this model, yes, it is designed to turn off after 4 hours. If it stops early or not at all, we test the timer.
Book repair for your DHW421
Book online in about a minute, or give us a call. Same-day appointments are available inside the Loop on most days, and next-day service across the rest of Houston.