UniMac QN Washer-Extractor Error Code E id drivE: Drive Board ID Error
E id drivE on a UniMac QN washer-extractor means the drive board does not match the machine's configuration, usually after a board swap with the wrong part. Take the washer out of service and call us with your model number.
Medium: the drum cannot spin properly until the right board is in place, but the cause is a part mismatch.
- Code
- E id drivE
- Maker
- UniMac
- Equipment
- Industrial laundry
- Applies to
- CHM1792C family washer-extractor (QN models, 20-100 lb) front-end control
What does UniMac error code E id drivE mean?
E id drivE on a UniMac QN washer-extractor such as the UCA020QN is a drive board ID error. Each board carries an identity that tells the control which kind of board it is. The control checks that identity against the configuration stored for the machine. If the drive board is not the correct one for this configuration, the control refuses to run the drum, because a wrong drive may use the wrong motor settings.
This usually follows a board swap with the wrong part. Batches are held up until the correct board is in place. The checks therefore concern the part number of the installed drive board, the machine configuration and model data, the connection between the drive and the control, and the repair history of the washer.
Do not open the cabinet to swap boards. The maker's operator step is to fit the correct board, which is a technician's job. Think about whether the drive board was replaced recently and have your model number ready.
Affected models and control systems
E id drivE is listed for the CHM1792C family washer-extractors, the QN models from 20 to 100 lb, with the front-end control; the manual's example model is the UCA020QN.
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 display shows E id drivE and the drum will not spin
- The code began right after a repair
- The washer fills but cannot extract
- The code appears at every power-up
Possible causes
Listed in UniMac's documentation
- Part number of the installed drive board
- Machine configuration and model data
- Connection between the drive and the control
- Repair history of the washer
Other likely causes — what usually sits behind error code E id drivE on this control. A technician confirms which one it is before any part is replaced.
- Board from a similar model with a different identity code
- Configuration data not updated after the board was exchanged
- ID line between control and drive broken at a connector
- Used board fitted that was set up for another machine
Safe checks before calling for service
- Take the washer out of service and switch the power off.
- Think about whether the drive board was replaced recently.
- Do not open the cabinet to swap boards. The maker's operator step is to fit the correct board.
- Call us with your model number so we can find the right one.
How a technician diagnoses error code E id drivE
- Read the code and ask about recent board work.
- Read the model and serial number from the data plate.
- Compare the drive board part number with the parts list for that model.
- Check the connection between drive and control.
- Fit the correct board and confirm the configuration, then test a spin.
- Identifying the right board needs the machine's data plate and the maker's parts list.
- Swapping boards means working in the cabinet with power locked out.
- A wrong board can run the motor with settings meant for another machine.
How error code E id drivE differs from similar codes
E id drivE concerns the drive board identity, while E id oUtPUt concerns the output board identity.
Technical reference
- Document
- Washer-Extractor Programming CHM1792C_SVG, Part No. F8641001ENR4, Error Codes Table 29 (pp. 100-107)
- Maker documentation
- UniMac owner support
- 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 UniMac industrial laundry error codes
Is the drive board broken?
Not necessarily. It may be a good board that is simply the wrong one for this machine.
Can I try a board from another washer?
Please do not. Even a similar model may carry a different identity.
Why did the washer work before?
Most often a board was replaced after that, and the new one does not match.
Need help with UniMac error code E id drivE?
A technician confirms the cause on site and gives you the price in writing before any work starts.