Huebsch CHM495R Washer-Extractor Error Code Ed10: Low DC Bus
Ed10 on a Huebsch CHM495R washer-extractor is a low DC bus error: the voltage inside the motor drive dropped below its normal range, and the manual says the cycle continues with no user input required. Let the cycle finish. Note when the code appears and what else is running at that time, and tell us the pattern if you book a visit.
Low: an informational drive message, and the cycle keeps running.
What does Huebsch error code Ed10 mean?
The drive keeps an internal DC voltage that comes from the supply. When that voltage dips below its normal range, the drive notes it and displays "Ed10". The manual says the cycle continues with no user input required, so the code is closer to a note than a stop. Operators see the code flash while the wash goes on. It tells us that the supply or the drive dipped at some moment. A weak or sagging line, a loose power connection or an aging drive can produce it. Repeated flashes deserve a look. The manual lists line voltage and its steadiness, power connections to the machine, the drive's bus circuit, and other equipment sharing the circuit. The timing is the best clue: a flash every time a big dryer starts tells a different story from a flash at random.
Affected models and control systems
This page applies to CHM495R-family washer-extractors, 20 to 100 lb, with the front-end control and motor drive. The matching high-voltage message on the same drive is Ed02.
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
- Code flashes briefly while the wash goes on
- "Ed10" on the display without the cycle stopping
- The flash may line up with other equipment starting
Possible causes
Listed in Huebsch's documentation
- Line voltage weak or unsteady
- Power connections to the machine loose
- Drive bus circuit aging
- Other equipment sharing the circuit
Other likely causes — what usually sits behind error code Ed10 on this control. A technician confirms which one it is before any part is replaced.
- A large dryer or compressor on the same feeder pulling the voltage down when it starts
- A terminal at the machine disconnect that has loosened and heats up under load
Safe checks before calling for service
- Let the cycle finish, since the manual requires no action.
- Note when the code appears and what else is running at that time.
- Do not touch the electrical connections.
- Tell us the pattern if you book a visit, including how often it flashes in a day.
How a technician diagnoses error code Ed10
- Read the code history and note the times of the flashes.
- Measure line voltage and its steadiness over a cycle.
- Check which other equipment shares the circuit.
- Inspect the power connections at the disconnect and the drive terminals.
- Test the drive bus circuit and replace the drive only after the supply is confirmed good.
- Measuring line voltage over a cycle means connecting instruments to energized terminals.
- Tightening power terminals must be done by a qualified person with the supply locked off.
- A sagging building supply may need an electrician to correct.
How error code Ed10 differs from similar codes
Ed10 is the low side of the DC bus and does not stop the cycle. Ed02 is the high side, which does stop the motor.
Technical reference
- Document
- Washer-Extractor Programming CHM495R_SVG, Part No. F8208501ENR10, March 2017, Error Codes (pp. 36-37)
- Edition
- Part No. F8208501ENR10, March 2017
- Models / control
- CHM495R family washer-extractor front-end control (20-100 lb)
- Section
- Error Codes table, pp. 36-37 (E Pr only on Design 1 models; Ed01-Ed11 on Design 2 and 3 models)
- 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
Do I need to stop the washer for Ed10?
No. The manual says the cycle continues with no user input required.
Why should I note the time?
The timing can show whether a particular machine is dragging the voltage down.
Can it become something worse?
It is a note about the supply, so repeated flashes are worth having checked.
Need help with Huebsch error code Ed10?
A technician confirms the cause on site and gives you the price in writing before any work starts.