Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw NO BAR OIL Error Fix: Automatic Oiler Not Delivering Oil to Bar and Chain

The chain and bar are running dry — no visible oil on the bar tip or chain. Ryobi 40V chainsaws have an automatic oiler that delivers bar and chain oil during operation. A dry chain wears rapidly, generates excessive heat, and can seize on the bar. First, check the oil level in the bar oil reservoir — the oil window or cap is on the side of the chainsaw body. If the reservoir is empty, fill with bar and chain oil (do NOT substitute motor oil, vegetable oil, or used oil). If the reservoir is full but no oil is reaching the chain: check the oil delivery port on the side of the chainsaw near the bar mount — it may be clogged with sawdust and wood debris. Clean the port with a small wire or toothpick. Also check the bar groove and oil holes in the guide bar for clogging — remove the bar and clean with a bar groove cleaning tool or thin wire. If the oiler still does not deliver oil after cleaning, the oil pump may have failed and the unit needs warranty service.

warning2 fixes available

Quick Answer

Error NO BAR OIL on the Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw means: Automatic Oiler Not Delivering Oil to Bar and Chain. The top-ranked community fix is “Test and Replace Oil Pump Assembly” (hard difficulty, ~45 min, DIY cost: $15-$25). 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: $150-$200.

Other Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw Error Codes

BATT ALL BLINK

Battery Fault — All 4 LEDs Blinking

2 fixes

BATT COLD

Battery Too Cold to Operate or Charge

2 fixes

BATT DEPLETED

Battery Fully Depleted — No LEDs Lit

2 fixes

BATT OVERHEAT

Battery Over-Temperature — Tool Shuts Down

2 fixes

CHAIN BRAKE STUCK

Chain Brake Won't Release

2 fixes

CHAIN LOOSE

Chain Comes Off the Guide Bar

2 fixes

CHAIN STRETCH

Chain Has Stretched Beyond Adjustment Range

2 fixes

CHAIN WON'T MOVE

Chain Not Moving When Trigger Is Pulled

2 fixes

People Also Ask About Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw Error NO BAR OIL

What does error code NO BAR OIL mean on a Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw?

Error code NO BAR OIL on the Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw means: Automatic Oiler Not Delivering Oil to Bar and Chain. The chain and bar are running dry — no visible oil on the bar tip or chain. Ryobi 40V chainsaws have an automatic oiler that delivers bar and chain oil during operation. A dry chain wears rapidly, generates excessive heat, and can seize on the bar. First, check the oil level in the bar oil reservoir — the oil window or cap is on the side of the chainsaw body. If the reservoir is empty, fill with bar and chain oil (do NOT substitute motor oil, vegetable oil, or used oil). If the reservoir is full but no oil is reaching the chain: check the oil delivery port on the side of the chainsaw near the bar mount — it may be clogged with sawdust and wood debris. Clean the port with a small wire or toothpick. Also check the bar groove and oil holes in the guide bar for clogging — remove the bar and clean with a bar groove cleaning tool or thin wire. If the oiler still does not deliver oil after cleaning, the oil pump may have failed and the unit needs warranty service.

How do I fix error code NO BAR OIL on my Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw?

The most successful fix is "Test and Replace Oil Pump Assembly" (hard difficulty, ~45 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

Is error code NO BAR OIL on a Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw serious?

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

Can I fix Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw error NO BAR OIL myself?

Yes — the top-ranked community fix ("Test and Replace Oil Pump Assembly") is rated hard difficulty and takes about 45 minutes. Tools needed: Phillips screwdriver, Wrench set, Small pick or brush, Service manual.

How much does it cost to repair Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw error NO BAR OIL?

DIY cost: $15-$25. Professional repair typically costs $150-$200. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw have?

The Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw has 8 other known error codes, including: BATT ALL BLINK (Battery Fault — All 4 LEDs Blinking), BATT COLD (Battery Too Cold to Operate or Charge), BATT DEPLETED (Battery Fully Depleted — No LEDs Lit), BATT OVERHEAT (Battery Over-Temperature — Tool Shuts Down), CHAIN BRAKE STUCK (Chain Brake Won't Release), and 3 more.

What other error codes does the Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw have?

The Ryobi Ryobi RY40550 40V HP Brushless 14 in. Chainsaw has 8 other known error codes:

BATT ALL BLINK — Battery Fault — All 4 LEDs Blinking (2 fixes)
BATT COLD — Battery Too Cold to Operate or Charge (2 fixes)
BATT DEPLETED — Battery Fully Depleted — No LEDs Lit (2 fixes)
BATT OVERHEAT — Battery Over-Temperature — Tool Shuts Down (2 fixes)
CHAIN BRAKE STUCK — Chain Brake Won't Release (2 fixes)
CHAIN LOOSE — Chain Comes Off the Guide Bar (2 fixes)
CHAIN STRETCH — Chain Has Stretched Beyond Adjustment Range (2 fixes)
CHAIN WON'T MOVE — Chain Not Moving When Trigger Is Pulled (2 fixes)

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