🍂Leaf Blower

E20

STIHL · BG 86 C-E Blower

STIHL BG 86 C-E Blower E20 Error Fix: Control Board Failure

The electronic control board is malfunctioning, causing unpredictable blower behavior such as failure to start, erratic throttle response, or no electric start. This may be due to water damage or component failure.

critical2 fixes available

Quick Answer

Error E20 on the STIHL BG 86 C-E Blower means: Control Board Failure. The top-ranked community fix is “Replace Control Board” (hard difficulty, ~90 min, DIY cost: $150-$200). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · leaf blower

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

Root Cause Analysis

Control Board FailurePrimary

Electrical Fault

When to Call a Professional

While many leaf blower repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $300-$400.

Other STIHL Models with Error E20

BGA 57 Battery Blower

leaf_blower · 2 fixes

BR 600 Backpack Blower

leaf_blower · 2 fixes

FS 56 RC-E Trimmer

string_trimmer · 2 fixes

FSA 57 Battery Trimmer

string_trimmer · 2 fixes

MS 180 C-BE Chainsaw

chainsaw · 2 fixes

MS 250 45.4 cc 2-Stroke Gas Chainsaw with 18" Bar and Anti-Vibration System

chainsaw · 2 fixes

MS 362 C-M Chainsaw

chainsaw · 2 fixes

MSA 220 C-B Battery

chainsaw · 2 fixes

Other STIHL BG 86 C-E Blower Error Codes

E01

Engine Overheat Detected

2 fixes

E02

Ignition Coil Failure

2 fixes

E03

Fuel Flow Restriction Detected

Air Filter Blockage

Spark Plug Fouled

Clogged Carburetor

Starter Motor Failure

2 fixes

E08

Throttle Cable Binding

2 fixes

People Also Ask About STIHL BG 86 C-E Blower Error E20

What does error code E20 mean on a STIHL BG 86 C-E Blower?

Error code E20 on the STIHL BG 86 C-E Blower means: Control Board Failure. The electronic control board is malfunctioning, causing unpredictable blower behavior such as failure to start, erratic throttle response, or no electric start. This may be due to water damage or component failure.

How do I fix error code E20 on my STIHL BG 86 C-E Blower?

The most successful fix is "Replace Control Board" (hard difficulty, ~90 minutes). Estimated DIY cost: $150-$200. HomeMD has 2 community-ranked fixes for this error.

Is error code E20 on a STIHL BG 86 C-E Blower serious?

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix STIHL BG 86 C-E Blower error E20 myself?

Yes — the top-ranked community fix ("Replace Control Board") is rated hard difficulty and takes about 90 minutes. Tools needed: Screwdrivers, Labeling tape.

How much does it cost to repair STIHL BG 86 C-E Blower error E20?

DIY cost: $150-$200. Professional repair typically costs $300-$400. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the STIHL BG 86 C-E Blower have?

The STIHL BG 86 C-E Blower has 8 other known error codes, including: E01 (Engine Overheat Detected), E02 (Ignition Coil Failure), E03 (Fuel Flow Restriction Detected), E04 (Air Filter Blockage), E05 (Spark Plug Fouled), and 3 more.

Which other STIHL models have the E20 error?

Error code E20 also appears on 8 other STIHL models: BGA 57 Battery Blower, BR 600 Backpack Blower, FS 56 RC-E Trimmer, FSA 57 Battery Trimmer, MS 180 C-BE Chainsaw, MS 250 45.4 cc 2-Stroke Gas Chainsaw with 18" Bar and Anti-Vibration System, and 2 more. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the STIHL BG 86 C-E Blower have?

The STIHL BG 86 C-E Blower has 8 other known error codes:

E01 — Engine Overheat Detected (2 fixes)
E02 — Ignition Coil Failure (2 fixes)
E03 — Fuel Flow Restriction Detected (2 fixes)
E04 — Air Filter Blockage (2 fixes)
E05 — Spark Plug Fouled (2 fixes)
E06 — Clogged Carburetor (2 fixes)
E07 — Starter Motor Failure (2 fixes)
E08 — Throttle Cable Binding (2 fixes)

Which other STIHL models have the E20 error?

Error code E20 also appears on 8 other STIHL models:

BGA 57 Battery Blower (leaf blower) · 2 fixes
BR 600 Backpack Blower (leaf blower) · 2 fixes
FS 56 RC-E Trimmer (string trimmer) · 2 fixes
FSA 57 Battery Trimmer (string trimmer) · 2 fixes
MS 180 C-BE Chainsaw (chainsaw) · 2 fixes
MS 250 45.4 cc 2-Stroke Gas Chainsaw with 18" Bar and Anti-Vibration System (chainsaw) · 2 fixes
MS 362 C-M Chainsaw (chainsaw) · 2 fixes
MSA 220 C-B Battery (chainsaw) · 2 fixes

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