🔧Appliance

E04

Toro · Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System

Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System E04 Error Fix: Engine Overheat Warning

The mower engine temperature has exceeded safe operating limits. This error triggers when the engine temperature sensor detects excessive heat, which can lead to engine damage or shutdown.

critical2 fixes available

Quick Answer

Error E04 on the Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System means: Engine Overheat Warning. The top-ranked community fix is “Replace Engine Temperature Sensor” (medium difficulty, ~40 min, DIY cost: $20-$40). 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.

Root Cause Analysis

Sensor MalfunctionPrimary

Heating Element Failure → Thermal Fuse Blown

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: $130-$180.

Other Toro Models with Error E04

PowerJet F700 700 CFM Gas Leaf Blower

leaf_blower · 2 fixes

TimeCutter 42" Zero-Turn 42 in 22 HP Kohler V-Twin Zero-Turn Riding Mower with Smart Speed Control

riding_mower · 2 fixes

TimeCutter SS4225 42 in 22.5 HP Riding Mower

riding_mower · 2 fixes

Other Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System Error Codes

E03

Blade Rotation Fault

2 fixes

E05

Self-Propel Drive Error

Fuel Delivery Fault

Battery Charging Failure

2 fixes

E08

Throttle Control Fault

2 fixes

E09

Oil Level Sensor Fault

2 fixes

E10

Starter Motor Failure

2 fixes

E11

Blade Brake Clutch Fault

2 fixes

People Also Ask About Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System Error E04

What does error code E04 mean on a Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System?

Error code E04 on the Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System means: Engine Overheat Warning. The mower engine temperature has exceeded safe operating limits. This error triggers when the engine temperature sensor detects excessive heat, which can lead to engine damage or shutdown.

How do I fix error code E04 on my Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System?

The most successful fix is "Replace Engine Temperature Sensor" (medium difficulty, ~40 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

Is error code E04 on a Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System 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 Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System error E04 myself?

Yes — the top-ranked community fix ("Replace Engine Temperature Sensor") is rated medium difficulty and takes about 40 minutes. Tools needed: Wrench set, Screwdriver.

How much does it cost to repair Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System error E04?

DIY cost: $20-$40. Professional repair typically costs $130-$180. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System have?

The Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System has 8 other known error codes, including: E03 (Blade Rotation Fault), E05 (Self-Propel Drive Error), E06 (Fuel Delivery Fault), E07 (Battery Charging Failure), E08 (Throttle Control Fault), and 3 more.

Which other Toro models have the E04 error?

Error code E04 also appears on 3 other Toro models: PowerJet F700 700 CFM Gas Leaf Blower, TimeCutter 42" Zero-Turn 42 in 22 HP Kohler V-Twin Zero-Turn Riding Mower with Smart Speed Control, TimeCutter SS4225 42 in 22.5 HP Riding Mower. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System have?

The Toro Recycler 22" SmartStow 22 in 160 cc 3.75 HP SmartStow Push Mower with Personal Pace and Recycler Cutting System has 8 other known error codes:

E03 — Blade Rotation Fault (2 fixes)
E05 — Self-Propel Drive Error (2 fixes)
E06 — Fuel Delivery Fault (2 fixes)
E07 — Battery Charging Failure (2 fixes)
E08 — Throttle Control Fault (2 fixes)
E09 — Oil Level Sensor Fault (2 fixes)
E10 — Starter Motor Failure (2 fixes)
E11 — Blade Brake Clutch Fault (2 fixes)

Which other Toro models have the E04 error?

Error code E04 also appears on 3 other Toro models:

PowerJet F700 700 CFM Gas Leaf Blower (leaf blower) · 2 fixes
TimeCutter 42" Zero-Turn 42 in 22 HP Kohler V-Twin Zero-Turn Riding Mower with Smart Speed Control (riding mower) · 2 fixes
TimeCutter SS4225 42 in 22.5 HP Riding Mower (riding mower) · 2 fixes

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