Garden machine faults: mowers, chainsaws, trimmers, generators

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An open garden shed at sunrise with a mower, chainsaws, a pressure washer and hand tools inside
Garden & outdoor power equipment

The machine worked in October. In April it will not start.

Every garden machine fails in the same season, for a short list of reasons. Find what the fault means, which part replaces it, and what you need on the bench before you open anything.

1,140
models with a data sheet
11
machine families
7,762
parts with a list price
310
manufacturer manuals read
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Replace the machine, or replace the part

Most garden faults come down to one worn component. Below, both routes: the whole machine, or the single part — priced in your country, from shops that carry it.

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A lit garden machinery shop window at dusk, with mowers and trimmers inside

The whole machine

When the repair costs more than the machine is worth. Mowers, chainsaws, robot mowers and generators, in your country’s shops.

A saw chain, two mower blades, a spark plug, an air filter and a spool of trimmer line laid out on a dark bench

The single part

Blades, chains, air filters, spark plugs, trimmer line, drive belts. We hold 7,762 parts with the manufacturer’s own code and list price — and show you what the same part costs elsewhere.

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Eleven families

Start from the machine you own

Each family fails its own way. Pick yours and you land on its faults, its parts and the brands that make it.

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What to have on the bench

Half of garden repairs need four tools and twenty minutes. The other half need a spark tester before you take anything apart.

Spark plug wrench, feeler gauges, funnel and fuel mix on a workbench

Find the part, then find what it costs

Type the manufacturer code or the name of the part. We show the original, the compatible one and the used one, side by side.

A workshop drawer with blades, chains, filters and belts sorted in trays
A paper air filter and its foam pre-filter beside a small engine
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Helmet with visor and ear defenders, boots, gloves and safety glasses
Safety

Before you open anything

  • Pull the spark plug cap off. A mower can fire once on a warm cylinder and take a finger with it.
  • On battery machines, take the battery out — not just off the switch.
  • Blades and chains are sharp when blunt. Gloves, every time.
  • Petrol vapour sits low and travels. Never drain a tank indoors.
  • A generator running in a closed space kills with carbon monoxide, silently.

If the machine is under warranty, opening it can void it. Check before you unscrew.

How this page is built

A notebook with a hand sketch of a mower and a checklist, beside a blade
  1. We read the manufacturer’s own pages and manuals — 310 of them so far, in English, Spanish, French and Italian — and we keep the source and the date we read it.
  2. Where the manufacturer gives a fault table, we keep its three columns: message, cause, action. We do not rewrite them.
  3. Where a remedy names a part, that part goes first in the parts section. 684 remedies name one.
  4. Where the manufacturer gives no remedy, we say so. We do not fill the gap.
  5. Prices come from the manufacturer’s own list, or from the shop — never from an aggregator, and never from memory.
THE MAKERS BEHIND THIS SECTION

Whose machines we have actually read

Not a list of logos. Every maker here has been read end to end, and the number beside it is how many of its machines we hold — with the families each one covers.

The makers we hold, and which machines — 5 brands

Fault-code pages for garden machines are being built. Until they exist there is no code box here: a search over an archive that does not yet exist would be a promise, not a tool.

WHERE THIS COMES FROM

Every line traces back to a document we read

We do not paraphrase forums. These are the sources behind the pages in this section, with the count we actually hold today.

  • Husqvarna 310 official documents read: 170 operator’s manuals, 115 illustrated parts lists, 25 other. Plus 18 fault codes published by Husqvarna in five official languages — we quote those, we do not translate them.
  • Champion Power Equipment 186 product pages with manuals and full exploded parts diagrams by serial number range — the level of detail most makers keep for dealers.

What we do not have yet, said plainly: STIHL, Stiga, EGO, Greenworks and the other makers in our index have not been read end to end. Where a fault is not documented by its maker, we say so on the page instead of filling the gap.

The rest of the map

Where to go from here

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The garden database

The garden database

Every machine we hold, family by family, counted.

Open →
Used marketplace

Used marketplace

Second-hand machines and parts, priced. Coming soon.

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Find a repairer

Find a repairer

Workshops near you that service garden machines.

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Seasonal maintenance

Seasonal maintenance

What to do, and when, so it starts in April. Coming soon.

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TroubleAtlas Technical Team · Last checked 11 September 2026 · How we verify

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