Telescoping Chimney Cover
| What it is | The stainless sleeve covering the duct from the top of the canopy up to the ceiling. |
|---|---|
| Where it sits | The two-piece stainless sleeve from canopy to ceiling |
| How it fails | Rattles at high speed, slips, or drums against the duct inside |
| Checked with | Retaining screws, the upper bracket, and clearance to the duct |
| Price | Quoted after the $89 visit |
The sleeve between canopy and ceiling
It is trim, not ductwork. The duct runs up inside it; the sleeve only hides the duct and finishes the line to the ceiling. That matters when a noise starts up there: the cover can rattle while the ventilation behind it is faultless.
Why it drums at high speed
Two sleeves that touch each other, or a sleeve that touches the duct inside, will buzz once the blower reaches a speed that puts the right vibration through them. On low nothing happens. Step it up and the kitchen fills with a metallic drone that owners reasonably report as a failing motor.
Brackets, screws and clearance
The upper sleeve is held by a bracket screwed to the ceiling or to framing above it, and the lower one sits on the canopy. Screws work loose, a bracket pulls slightly out of true, and the clearance that kept metal off metal disappears. Putting it right is a matter of alignment and packing, not parts, and it is the sort of thing Wolf Repair Los Angeles settles inside the $89 visit — (310) 626-4008.
What putting it right costs
This one has no published band. Wolf Repair Los Angeles puts a figure on it after the diagnosis, as one number covering the part and the labour, and nothing is ordered until you have agreed it — (310) 626-4008.
A flat $89 buys the call-out and a full diagnosis, and that $89 is deducted from the repair once you have approved it.
Follow-ups
The noise only happens on the highest setting. Is that still worth a visit?
Yes, because the same noise has two very different causes and they are not priced alike. A loose cover is tightened and packed on the spot. A wheel out of balance or a worn bearing is a different job altogether, and telling them apart takes a few minutes with the filters out.
Can I push the sleeve back up myself?
You can look, and looking is useful. What you should not do is stand on a counter and pull at a sleeve that is carrying nothing but its own weight and a few screws. If it slips while you are under it, the edges are thin steel. Report what you see on the phone instead.