UniMac Washer-Extractor Error Code EI05: IR Invalid Data

What does UniMac error code EI05 mean?

When a programming tool loads an option into a UniMac UW pocket hardmount washer-extractor, the control checks that the value falls inside the range that option allows. If it does not, the control refuses the value and shows EI05. The link works, but the washer refuses the value. Cycles already stored on the machine keep working as before, so production is not interrupted. Typical examples are a temperature, time or level that is larger or smaller than the control can use, or a number entered into the wrong field. The manual points to the programming option value that was sent, tool settings and file for this machine, typing or entry mistakes in the option, and control limits for that option. The fix is to compare the number with the allowed range for that option, correct it on the tool, and send it again. Changing one option at a time makes it easier to see which value was refused.

Affected models and control systems

This applies to the PHM1263R family of UniMac UW pocket hardmount washer-extractors, models UWL, UWN and UWU 035 to 125, such as the UWL035K12. EI05 is an infrared data message on this control.

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

• EI05 on the display after sending an option
• One setting that will not take
• Other settings that load without trouble
• Washer cycles unchanged

Possible causes

Listed in UniMac's documentation

• The programming option value that was sent
• Tool settings and file for this machine
• Typing or entry mistakes in the option
• Control limits for that option

Other likely causes — what usually sits behind error code EI05 on this control. A technician confirms which one it is before any part is replaced.

• A value entered in the wrong units, such as a time in minutes where seconds are expected
• A settings file prepared for a washer with a wider range of options
• A decimal point or digit slipped during entry on the tool

Safe checks before calling for service

How a technician diagnoses error code EI05

1. Read the code and identify which option was being sent.
2. Check the option's allowed range in the maker's programming manual.
3. Resend the option alone from a clean tool session.
4. Confirm that the settings file belongs to this machine's model range.
5. Look at the control only if valid values are still refused.

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.