🪵Chainsaw

LOW COMPRESSION

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

Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection LOW COMPRESSION Error Fix: Engine Compression Loss

The engine has lost compression, making it hard to start or impossible to run — low compression indicates internal engine wear including scored cylinder walls, worn or stuck piston rings, or a damaged cylinder gasket; test compression with a gauge (normal is approximately 110-150 PSI for Husqvarna chainsaw engines); causes include running incorrect fuel mix (too little oil damages cylinder), overheating, or high hours of use; cylinder and piston replacement may be needed; on the 460 Rancher, also check the decompression valve which could be stuck open

Medium severity2 fixes available

Quick Answer

Error LOW COMPRESSION on the Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection means: Engine Compression Loss. The top-ranked community fix is “Replace Piston, Rings, and Cylinder or Service Decompression Valve” (hard difficulty, ~120 min, DIY cost: $50-$80). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · chainsaw

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 chainsaw 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: $250-$350.

Other Husqvarna Models with Error LOW COMPRESSION

460 Rancher 24 in 60cc Gas Chainsaw

chainsaw · 2 fixes

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

AIR FILTER

Air Filter Clogged or Restricted

2 fixes

BAR DAMAGE

Guide Bar Bent or Worn

2 fixes

BRAKE STUCK

Chain Brake Will Not Release

2 fixes

CHAIN FLIES OFF

Chain Comes Off Guide Bar

2 fixes

CHAIN STOPS

Chain Stops Under Load

2 fixes

CORD WON'T RETRACT

Starter Cord Will Not Retract

2 fixes

DIES AT IDLE

Engine Dies When Idling

2 fixes

FUEL LEAK

Fuel System Leak

2 fixes

People Also Ask About Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection Error LOW COMPRESSION

What does error code LOW COMPRESSION mean on a Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection?

Error code LOW COMPRESSION on the Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection means: Engine Compression Loss. The engine has lost compression, making it hard to start or impossible to run — low compression indicates internal engine wear including scored cylinder walls, worn or stuck piston rings, or a damaged cylinder gasket; test compression with a gauge (normal is approximately 110-150 PSI for Husqvarna chainsaw engines); causes include running incorrect fuel mix (too little oil damages cylinder), overheating, or high hours of use; cylinder and piston replacement may be needed; on the 460 Rancher, also check the decompression valve which could be stuck open

How do I fix error code LOW COMPRESSION on my Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection?

The most successful fix is "Replace Piston, Rings, and Cylinder or Service Decompression Valve" (hard difficulty, ~120 minutes). Estimated DIY cost: $50-$80. HomeMD has 2 community-ranked fixes for this error.

Is error code LOW COMPRESSION on a Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection 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 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection error LOW COMPRESSION myself?

Yes — the top-ranked community fix ("Replace Piston, Rings, and Cylinder or Service Decompression Valve") is rated hard difficulty and takes about 120 minutes. Tools needed: T25 Torx screwdriver, Socket wrench set, Torque wrench, Feeler gauge.

How much does it cost to repair Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection error LOW COMPRESSION?

DIY cost: $50-$80. Professional repair typically costs $250-$350. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection have?

The Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection has 8 other known error codes, including: AIR FILTER (Air Filter Clogged or Restricted), BAR DAMAGE (Guide Bar Bent or Worn), BRAKE STUCK (Chain Brake Will Not Release), CHAIN FLIES OFF (Chain Comes Off Guide Bar), CHAIN STOPS (Chain Stops Under Load), and 3 more.

Which other Husqvarna models have the LOW COMPRESSION error?

Error code LOW COMPRESSION also appears on 1 other Husqvarna model: 460 Rancher 24 in 60cc Gas Chainsaw. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection have?

The Husqvarna 455 Rancher 55.5 cc 3.5 HP Gas Chainsaw with X-Torq Engine and Air Injection has 8 other known error codes:

AIR FILTER — Air Filter Clogged or Restricted (2 fixes)
BAR DAMAGE — Guide Bar Bent or Worn (2 fixes)
BRAKE STUCK — Chain Brake Will Not Release (2 fixes)
CHAIN FLIES OFF — Chain Comes Off Guide Bar (2 fixes)
CHAIN STOPS — Chain Stops Under Load (2 fixes)
CORD WON'T RETRACT — Starter Cord Will Not Retract (2 fixes)
DIES AT IDLE — Engine Dies When Idling (2 fixes)
FUEL LEAK — Fuel System Leak (2 fixes)

Which other Husqvarna models have the LOW COMPRESSION error?

Error code LOW COMPRESSION also appears on 1 other Husqvarna model:

460 Rancher 24 in 60cc Gas Chainsaw (chainsaw) · 2 fixes

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