UniMac Washer Error Code EI0E: Infra-Red Encryption Error

What does UniMac error code EI0E mean?

EI0E is an infra-red encryption error on UniMac UW pocket hardmount washer-extractors such as the UWL035K12. The control protects its settings with a security code, and it expects the data from the external tool to carry a matching one. When the code does not match, the control refuses the data and shows EI0E. This protects the machine's settings from the wrong tool or from a transfer by someone who is not meant to change them. Normal washing is unaffected, and nothing in the wash, drain or spin systems is involved. The manual lists the security code entered on the tool, the pairing between tool and control, the aim during the transfer, and the control setting for the security code. Guessing codes over and over is not advised, since the control only wants the one it was given.

Affected models and control systems

Listed for the PHM1263R family of UniMac UW pocket hardmount washer-extractors (UWL/UWN/UWU 035-125), such as the UWL035K12, front-end control with infra-red window.

Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.

What you may notice

• EI0E right after the tool sends data
• The tool is accepted by the window but its data is refused
• Washer cycles continue as normal
• The same tool works on other machines but not this one

Possible causes

Listed in UniMac's documentation

• Security code entered on the tool
• Tool and control pairing
• Aim during the transfer
• Control setting for the security code

Other likely causes — what usually sits behind error code EI0E on this control. A technician confirms which one it is before any part is replaced.

• A tool paired with another machine in the same laundry using a different code
• The control's code changed during an earlier service and the tool kept the old one
• A tool taken over from a previous owner with a code nobody wrote down

Safe checks before calling for service

How a technician diagnoses error code EI0E

1. Confirm which tool and which security code were used.
2. Check the code stored on the control against the one on the tool.
3. Re-aim and repeat the transfer to rule out a corrupted exchange.
4. Try a second tool paired with this machine.
5. Reset the pairing only with the machine's own data in hand.

How error code EI0E differs from similar codes

EI0E is a rejected security code. EI0F says the port is switched off, and EI03 says the command does not apply to this machine type.

Technical reference

Document

Washer-Extractor Programming PHM1263R, Part No. F8208801R7, September 2015, Error Codes (p.53-54)

Maker documentation

UniMac owner support

Edition

Part No. F8208801R7, September 2015

Models / control

PHM1263R family pocket hardmount washer-extractor (UWL/UWN/UWU 035-125) front-end control

Section

Error Codes, Table 16, printed pp. 52-53 (PDF pp. 54-55)

Checked

October 2026

We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.