Hoshizaki E4: Freeze/Harvest Failure
| Error Code | E4 |
|---|---|
| Meaning | Freeze/Harvest Failure |
| Severity | High |
| Quick Fix | Power cycle the machine (off 5 minutes, then on) |
| Repair Cost | $300-$600 |
Hoshizaki Error E4 indicates freeze/harvest failure. The E4 error occurs when the machine fails to complete freeze and harvest cycles consecutively. This indicates a significant system problem.
What Causes Hoshizaki Error E4?
Possible Causes
- 1 Multiple E2/E3 errors in sequence
- 2 Major refrigerant issue
- 3 Control board malfunction
- 4 Sensor failure
Affected Models
This error is common across Hoshizaki 4 ice machine models.
How to Fix Hoshizaki Error E4
Follow these steps to troubleshoot and potentially resolve the E4 error on your Hoshizaki ice machine.
Step 1
Power cycle the machine (off 5 minutes, then on)
Step 2
Clean condenser and evaporator thoroughly
Step 3
Check all water connections
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
E4 errors almost always require professional service to diagnose root cause and repair.
Frequently Asked Questions
What does Hoshizaki error E4 mean?
The E4 error occurs when the machine fails to complete freeze and harvest cycles consecutively. This indicates a significant system problem.
How do I fix Hoshizaki E4 error?
To fix Hoshizaki E4: Power cycle the machine (off 5 minutes, then on). Clean condenser and evaporator thoroughly. Check all water connections. E4 errors almost always require professional service to diagnose root cause and repair.
Is Hoshizaki E4 serious?
Hoshizaki E4 is rated as high severity. Professional service is recommended to avoid further damage.
How much does it cost to fix Hoshizaki E4?
Typical repair cost for Hoshizaki E4 is $300-$600. This includes diagnosis, parts, and labor. Professional ice machine cleaning in Houston starts at $199.