John Deere 1025R Sub-Compact Utility Tractor 23.9 HP GLOW PLUG Error Fix: Glow Plug System Fault

Glow plug indicator stays on too long or doesn't illuminate during pre-heat. Diesel engines require glow plugs for cold starting. Causes: failed glow plug(s), glow plug relay failure, wiring issue. Test glow plugs individually with a multimeter (should read 0.5-2 ohms).

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error GLOW PLUG on the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP means: Glow Plug System Fault. The top-ranked community fix is “Test and Replace Faulty Glow Plugs and Relay” (medium difficulty, ~90 min, DIY cost: $20-$40). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · compact tractor

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 compact tractor 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-$250.

Other John Deere 1025R Sub-Compact Utility Tractor 23.9 HP Error Codes

3PT WON'T LIFT

Three-Point Hitch Won't Lift

2 fixes

AIR FILTER

Air Filter Restriction Indicator

2 fixes

CHARGE

Alternator / Charging System Fault

2 fixes

CRANKS NO START

Engine Cranks but Won't Start (Diesel)

2 fixes

ENG OIL PRESS

Low Engine Oil Pressure Warning

2 fixes

ENG TEMP

Engine Coolant Temperature High

2 fixes

EXCESS SMOKE

Excessive Exhaust Smoke (Diesel)

2 fixes

FUEL FILTER

Fuel System Warning

2 fixes

People Also Ask About John Deere 1025R Sub-Compact Utility Tractor 23.9 HP Error GLOW PLUG

What does error code GLOW PLUG mean on a John Deere 1025R Sub-Compact Utility Tractor 23.9 HP?

Error code GLOW PLUG on the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP means: Glow Plug System Fault. Glow plug indicator stays on too long or doesn't illuminate during pre-heat. Diesel engines require glow plugs for cold starting. Causes: failed glow plug(s), glow plug relay failure, wiring issue. Test glow plugs individually with a multimeter (should read 0.5-2 ohms).

How do I fix error code GLOW PLUG on my John Deere 1025R Sub-Compact Utility Tractor 23.9 HP?

The most successful fix is "Test and Replace Faulty Glow Plugs and Relay" (medium difficulty, ~90 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

Is error code GLOW PLUG on a John Deere 1025R Sub-Compact Utility Tractor 23.9 HP 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 John Deere 1025R Sub-Compact Utility Tractor 23.9 HP error GLOW PLUG myself?

Yes — the top-ranked community fix ("Test and Replace Faulty Glow Plugs and Relay") is rated medium difficulty and takes about 90 minutes. Tools needed: T25 Torx screwdriver, 10mm deep socket, Ratchet wrench, Multimeter, Anti-seize compound.

How much does it cost to repair John Deere 1025R Sub-Compact Utility Tractor 23.9 HP error GLOW PLUG?

DIY cost: $20-$40. Professional repair typically costs $150-$250. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP have?

The John Deere 1025R Sub-Compact Utility Tractor 23.9 HP has 8 other known error codes, including: 3PT WON'T LIFT (Three-Point Hitch Won't Lift), AIR FILTER (Air Filter Restriction Indicator), CHARGE (Alternator / Charging System Fault), CRANKS NO START (Engine Cranks but Won't Start (Diesel)), ENG OIL PRESS (Low Engine Oil Pressure Warning), and 3 more.

What other error codes does the John Deere 1025R Sub-Compact Utility Tractor 23.9 HP have?

The John Deere 1025R Sub-Compact Utility Tractor 23.9 HP has 8 other known error codes:

3PT WON'T LIFT — Three-Point Hitch Won't Lift (2 fixes)
AIR FILTER — Air Filter Restriction Indicator (2 fixes)
CHARGE — Alternator / Charging System Fault (2 fixes)
CRANKS NO START — Engine Cranks but Won't Start (Diesel) (2 fixes)
ENG OIL PRESS — Low Engine Oil Pressure Warning (2 fixes)
ENG TEMP — Engine Coolant Temperature High (2 fixes)
EXCESS SMOKE — Excessive Exhaust Smoke (Diesel) (2 fixes)
FUEL FILTER — Fuel System Warning (2 fixes)

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