Huebsch QN Washer-Extractor Error Code EnXX: Machine ID Chip
EnXX stands for a display that reads En followed by two characters, which is a machine ID chip error. The control cannot read the chip that tells it what machine it is in; power down, power up and try again, and note the two characters.
Medium: the control cannot configure itself, so the machine may not start, but there is no hazard from the code itself.
What does Huebsch error code EnXX mean?
A QN-series control is built to suit many machines, so it reads a small Machine ID chip to learn which washer-extractor it is installed in and how to configure itself. If the control cannot read that chip, it does not know what to run, and the display shows En followed by two characters, written here as EnXX. The two characters give a technician a closer pointer. The manual's steps are to power down, power up and try again, then check the connection between the user control and the Machine ID chip. Operators see a machine that will not start or run correctly. A connection that has worked loose is the first candidate, then the chip itself. A user control board that was just replaced without moving the chip across is another well-known cause. It makes sense to ask whether any control work was done lately, because that history shortens the diagnosis.
Affected models and control systems
This applies to Huebsch QN-series washer-extractors in the CHM1792C family, 20 to 100 lb, with the front-end control in that programming manual.
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
- The washer does not start and the display shows En and two characters
- The machine runs with the wrong behavior or limits
- The code returns every time power is applied
Possible causes
Listed in Huebsch's documentation
- Connection between the user control and the Machine ID chip loose
- Machine ID chip failing
- Control recently replaced without the matching chip
- User control board failing
Other likely causes — what usually sits behind error code EnXX on this control. A technician confirms which one it is before any part is replaced.
- A control swapped during an earlier repair with the chip left on the old board
- Vibration over the years that has loosened the chip's cable at the user control
Safe checks before calling for service
- Power the washer down, power it up, and try again.
- Write down the two characters after En.
- Do not open the control to touch the chip or the cable behind it.
- If the code remains, ask us to schedule service, and tell us if the control was replaced before.
How a technician diagnoses error code EnXX
- Read the two characters and compare them with the manual's list for EnXX.
- Confirm the code returns after a full power cycle.
- With the power locked off, inspect the chip's connection at the user control for looseness or corrosion.
- Check that the chip matches the machine and the control.
- Replace the chip or the user control only after the connection and match are confirmed.
- The chip and its cable sit behind the control cover, which should only be opened with the power locked out.
- A chip that does not match the machine can make the washer run with the wrong settings, so it has to be matched to the model.
- Deciding between a bad chip and a bad control board needs a known-good part and the maker's procedure.
How error code EnXX differs from similar codes
EnXX concerns the machine identity chip. The EiXX display is the infrared communications message, and Eio codes concern the input and output board.
Technical reference
- Document
- Washer-Extractor Programming CHM1792C_SVG, Part No. F8641001ENR4, Error Codes Table 29 (pp. 100-107)
- Edition
- Part No. F8641001ENR4, January 2020
- Models / control
- CHM1792C family washer-extractor (QN models, 20-100 lb) front-end control
- Section
- Error Codes, Table 29, pp. 100-108 (PDF pages equal printed pages)
- 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.
Related Huebsch washer error codes
What is the Machine ID chip?
A small chip that tells the control which washer-extractor it is installed in.
Can a recent control replacement cause EnXX?
Yes. The manual lists a recent replacement among the things to check.
Will it clear after a restart?
Only if the connection was momentarily poor. A real chip problem returns.
Need help with Huebsch error code EnXX?
A technician confirms the cause on site and gives you the price in writing before any work starts.