
Loss of air is not a weak engine. It is the impeller.
A blower moves air with a plastic wheel spinning very fast. Everything that goes wrong with it happens at that wheel or on the way to it.
Replacement parts
These rows come from the manufacturer’s own parts pages, read on Husqvarna, Patriot Products, STIHL. The code is the one you order by. The price is the maker’s list price on the day we read it — shops sell for less, which is what the buttons are for.
| Part | Maker’s code | List price | |
|---|---|---|---|
| Throttle Control Assy on 530iB |
537497301 | $6.99 | 🛒 Find it |
| Combination Wrench on 356BTx |
501691701 | $6.99 | 🛒 Find it |
| Carburettor Cover on ST 324P |
585773701 | $19.99 | 🛒 Find it |
| Throttle Control on 230iB |
599348960 | $9.99 | 🛒 Find it |
| Body Carburettor on 360BT |
544363501 | $59.99 | 🛒 Find it |
| Bearing Support on ST 111 |
580855501 | $4.99 | 🛒 Find it |
The list price is the maker’s own, for orientation: shops sell for less, and that is what the buttons are for.
Repair it, or replace it

The whole machine
An impeller is a cheap part and restores the machine completely. A cracked fan housing on a handheld is where it ends. Both new and used open in the shop for your country.
Blowers & vacuums: the failures that repeat
Leaves pack behind the impeller and unbalance it. Vacuum bags clog at the zip, not at the mouth. On battery machines the pack loosens under vibration and cuts out under load while reading full at rest.
Written by the TroubleAtlas technical team from the manuals listed at the foot of this page. Where a maker documents a fault, we quote the maker.
What the maker sells as a replacement
Not “the most common failures” — nobody publishes that honestly. This is what Husqvarna, Patriot Products, STIHL stocks as a spare for these machines, fasteners excluded.
- Cable
- Cover
- Spring
- Knob
- Auger
- Support
- Tube
- Bracket
- Plate
- Pen
Tools you’ll need
Chosen for this family, not a generic list. Prices and availability come from the shop in your country, with our tracking.
The machines we hold in this family
- 125B
- 125BVx
- 150BT
- 230iB
- 320iB
- 340iBT (tool only)
- 350BF
- 350BT
- 356BTx
- 360BT
- 5.5 HP Gas 2-in-1 Leaf Vacuum Blower
- 525BX
- 525iB Mark II (tool only)
- 530iB
- 550iBTX
- 560BFS
- 560BTS
- 570BFS
- 570BTS
- 570iBT
- 580BFS
- 580BTS
- 590BFS
- 590BTS
- Accessori, manuali e supporto per il modello 120iB
- Accessori, manuali e supporto per il modello 122iB con batteria e caricabatterie
- Accessori, manuali e supporto per il modello 125B
- Accessori, manuali e supporto per il modello 125BVx
- Accessori, manuali e supporto per il modello 320iB
- Accessori, manuali e supporto per il modello 325iB
- Accessori, manuali e supporto per il modello 335iB
- Accessori, manuali e supporto per il modello 340iBT
- Accessori, manuali e supporto per il modello 345BT
- Accessori, manuali e supporto per il modello 350BT
- Accessori, manuali e supporto per il modello 360BT
- Accessori, manuali e supporto per il modello 436LiB
- Accessori, manuali e supporto per il modello 525BX
- Accessori, manuali e supporto per il modello 525iB
- Accessori, manuali e supporto per il modello 525iB Mark II
- Accessori, manuali e supporto per il modello 530BT
A selection of the machines in this family.
Where this comes from
- Husqvarna, Patriot Products, STIHL Machine data, manuals and parts lists, read on the maker’s own pages.
The other families
Every machine in the section starts from one of these. Back to the garden hub.

Robot mowers
They run alone until they stop alone. Boundary wire, lifted-wheel errors, blade discs.
Open →
Riding mowers & tractors
Deck belts, PTO clutches, safety switches that cut the engine for no visible reason.
Open →
Walk-behind mowers
The machine that sat all winter and will not start in April. Carburettor, fuel, blade.
Open →
Chainsaws
Chain tension, bar wear, two-stroke mix gone stale, a clutch that drags at idle.
Open →
Trimmers & brushcutters
Line that will not feed, heads that unscrew themselves, shafts that stop turning.
Open →
Hedge trimmers
Blades that jam on green wood, gearboxes that run dry, triggers with two safeties.
Open →
Generators
No output at the socket, AVR faults, low-oil cut-outs, dual-fuel changeover.
Open →
Pressure washers
Pressure that drops, pumps that pulse, unloader valves and blocked nozzles.
Open →
Multi-tools & pole saws
One powerhead, many attachments — and couplings that wear where they meet.
Open →
Chippers & shredders
Feed that stalls, knives that dull, chutes that block before the engine complains.
Open →TroubleAtlas Technical Team · Last checked 26 September 2026 · How we verify

