H
HIMC
Hoshizaki Error E1
High - Professional Recommended

Hoshizaki E1: High Temperature

Error Code E1
Meaning High Temperature
Severity High
Quick Fix Turn off machine and allow to cool for 30 minutes
Repair Cost $150-$400

Hoshizaki Error E1 indicates high temperature. The E1 error indicates the ice machine's condenser temperature has exceeded safe operating limits. This typically occurs when the condenser coils are dirty or airflow is restricted.

What Causes Hoshizaki Error E1?

Possible Causes

  1. 1 Dirty or clogged condenser coils
  2. 2 Blocked air intake or exhaust vents
  3. 3 Ambient temperature too high (above 100°F)
  4. 4 Fan motor failure
  5. 5 Refrigerant leak

Affected Models

KM-350MAJ KM-500MAJ KM-650MAJ KM-901MAJ

This error is common across Hoshizaki 4 ice machine models.

How to Fix Hoshizaki Error E1

Follow these steps to troubleshoot and potentially resolve the E1 error on your Hoshizaki ice machine.

1

Step 1

Turn off machine and allow to cool for 30 minutes

2

Step 2

Clean condenser coils with brush or vacuum

3

Step 3

Ensure 4+ inches clearance on all sides

4

Step 4

Check that fan is spinning freely

5

Step 5

Remove any obstructions from vents

Safety First

  • Power off: Always unplug your Hoshizaki ice machine before attempting repairs
  • Water supply: Turn off water supply to prevent leaks
  • Warranty: DIY repairs may void manufacturer warranty

When to Call a Hoshizaki Professional

If error persists after cleaning coils, or if you suspect refrigerant issues, fan motor problems, or the machine is in a properly ventilated area but still overheating.

Error persists after DIY attempts
Refrigerant leak suspected
Control board or sensor failure
Complex component replacement needed
Estimated Professional Repair Cost: $150-$400
Call (713) 555-CLEAN Book Online Service

Frequently Asked Questions

What does Hoshizaki error E1 mean?

The E1 error indicates the ice machine's condenser temperature has exceeded safe operating limits. This typically occurs when the condenser coils are dirty or airflow is restricted.

How do I fix Hoshizaki E1 error?

To fix Hoshizaki E1: Turn off machine and allow to cool for 30 minutes. Clean condenser coils with brush or vacuum. Ensure 4+ inches clearance on all sides. If error persists after cleaning coils, or if you suspect refrigerant issues, fan motor problems, or the machine is in a properly ventilated area but still overheating.

Is Hoshizaki E1 serious?

Hoshizaki E1 is rated as high severity. Professional service is recommended to avoid further damage.

How much does it cost to fix Hoshizaki E1?

Typical repair cost for Hoshizaki E1 is $150-$400. This includes diagnosis, parts, and labor. Professional ice machine cleaning in Houston starts at $199.