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WON'T START

Husqvarna · LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability

Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability WON'T START Error Fix: Engine Will Not Start

The mower engine will not start — check for stale fuel, a fouled spark plug, a clogged carburetor, or confirm the blade control bail lever (dead man switch) is held against the handle while pulling; the fuel shutoff valve (if equipped) must be in the ON position; if the engine is flooded, wait 15 minutes or remove the spark plug to clear excess fuel; always use fresh fuel and add fuel stabilizer before storage

Medium severity2 fixes available

Quick Answer

Error WON'T START on the Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability means: Engine Will Not Start. The top-ranked community fix is “Clean or Rebuild the Carburetor and Replace Spark Plug” (medium difficulty, ~60 min, DIY cost: $15-$30). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · push mower

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.

When to Call a Professional

While many push mower 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: $150-$220.

Other Husqvarna Models with Error WON'T START

350BT 50.2 cc Gas Backpack Leaf Blower

leaf_blower · 2 fixes

455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection

chainsaw · 2 fixes

460 Rancher 24 in 60cc Gas Chainsaw

chainsaw · 2 fixes

525LST 25.4 cc 17 in Gas String Trimmer

string_trimmer · 2 fixes

HU800AWD 22 in. 190cc Honda GCV190 All-Wheel Drive Self-Propelled Gas Mower

push_mower · 2 fixes

MZ61 61 in Zero-Turn Riding Mower

riding_mower · 2 fixes

Z254F 54 in. 26 HP Kohler Zero-Turn Riding Mower with Hydrostatic Transmission and High-Back Seat

riding_mower · 2 fixes

Other Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability Error Codes

Drive Belt Slipping

Blade Will Not Spin

Grass Clumping Under Deck

2 fixes

DIES UNDER LOAD

Engine Dies When Cutting

2 fixes

ELECTRIC START FAIL

Electric Start Not Working

Fuel Leaking

Starter Cord Very Hard to Pull

2 fixes

HEIGHT ADJUST STUCK

Height Adjuster Jammed

2 fixes

People Also Ask About Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability Error WON'T START

What does error code WON'T START mean on a Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability?

Error code WON'T START on the Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability means: Engine Will Not Start. The mower engine will not start — check for stale fuel, a fouled spark plug, a clogged carburetor, or confirm the blade control bail lever (dead man switch) is held against the handle while pulling; the fuel shutoff valve (if equipped) must be in the ON position; if the engine is flooded, wait 15 minutes or remove the spark plug to clear excess fuel; always use fresh fuel and add fuel stabilizer before storage

How do I fix error code WON'T START on my Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability?

The most successful fix is "Clean or Rebuild the Carburetor and Replace Spark Plug" (medium difficulty, ~60 minutes). Estimated DIY cost: $15-$30. HomeMD has 2 community-ranked fixes for this error.

Is error code WON'T START on a Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability serious?

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Can I fix Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability error WON'T START myself?

Yes — the top-ranked community fix ("Clean or Rebuild the Carburetor and Replace Spark Plug") is rated medium difficulty and takes about 60 minutes. Tools needed: Spark plug wrench, Flathead screwdriver, Pliers, Carburetor cleaner spray, Socket set.

How much does it cost to repair Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability error WON'T START?

DIY cost: $15-$30. Professional repair typically costs $150-$220. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability have?

The Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability has 8 other known error codes, including: BELT SLIP (Drive Belt Slipping), BLADE WON'T ENGAGE (Blade Will Not Spin), DECK CLOG (Grass Clumping Under Deck), DIES UNDER LOAD (Engine Dies When Cutting), ELECTRIC START FAIL (Electric Start Not Working), and 3 more.

Which other Husqvarna models have the WON'T START error?

Error code WON'T START also appears on 7 other Husqvarna models: 350BT 50.2 cc Gas Backpack Leaf Blower, 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection, 460 Rancher 24 in 60cc Gas Chainsaw, 525LST 25.4 cc 17 in Gas String Trimmer, HU800AWD 22 in. 190cc Honda GCV190 All-Wheel Drive Self-Propelled Gas Mower, MZ61 61 in Zero-Turn Riding Mower, and 1 more. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability have?

The Husqvarna LC221FHE 21 in 163 cc 4-Stroke Walk-Behind Mower with Electric Start and Mulching Capability has 8 other known error codes:

BELT SLIP — Drive Belt Slipping (2 fixes)
BLADE WON'T ENGAGE — Blade Will Not Spin (2 fixes)
DECK CLOG — Grass Clumping Under Deck (2 fixes)
DIES UNDER LOAD — Engine Dies When Cutting (2 fixes)
ELECTRIC START FAIL — Electric Start Not Working (2 fixes)
FUEL LEAK — Fuel Leaking (2 fixes)
HARD TO PULL — Starter Cord Very Hard to Pull (2 fixes)
HEIGHT ADJUST STUCK — Height Adjuster Jammed (2 fixes)

Which other Husqvarna models have the WON'T START error?

Error code WON'T START also appears on 7 other Husqvarna models:

350BT 50.2 cc Gas Backpack Leaf Blower (leaf blower) · 2 fixes
455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection (chainsaw) · 2 fixes
460 Rancher 24 in 60cc Gas Chainsaw (chainsaw) · 2 fixes
525LST 25.4 cc 17 in Gas String Trimmer (string trimmer) · 2 fixes
HU800AWD 22 in. 190cc Honda GCV190 All-Wheel Drive Self-Propelled Gas Mower (push mower) · 2 fixes
MZ61 61 in Zero-Turn Riding Mower (riding mower) · 2 fixes
Z254F 54 in. 26 HP Kohler Zero-Turn Riding Mower with Hydrostatic Transmission and High-Back Seat (riding mower) · 2 fixes

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