Huebsch CHM495R Washer-Extractor Error Code Ed02: DC Bus Too High
Ed02 on a Huebsch CHM495R washer-extractor is a DC bus error: the voltage inside the motor drive climbed higher than the drive allows, so the drive stopped the motor. Turn the machine off at its disconnect and ask the building's electrician or us to verify line voltage, which is not an owner measurement. Power it up after the check, and schedule service with us if Ed02 repeats.
High: the drive stops the motor on over-voltage and the machine cannot run until the supply is verified.
What does Huebsch error code Ed02 mean?
The motor drive keeps a DC voltage inside itself, and that voltage rises when the motor slows and sends energy back. If it climbs above what the drive allows, the drive stops the motor to protect itself and displays "Ed02". Operators see the machine halt during or just after a spin. The manual's steps are to power down, verify the line voltage, and power up. High line voltage or surges feeding the machine are the first suspects, with the drive board next. The manual lists line voltage at the machine, whether other heavy equipment on the circuit causes surges, the drive's bus circuit, and the connections feeding the drive. A supply that is a little high is enough to make a slowing spin cross the limit, and that is why the code tends to show at the end of an extract instead of during the wash.
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. Other drive codes for the same machine have their own pages.
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
- Machine stops during or right after the spin
- "Ed02" on the display
- Code appears when the basket slows down
Possible causes
Listed in Huebsch's documentation
- Line voltage at the machine too high
- Surges from other heavy equipment on the circuit
- Drive bus circuit failure
- Connections feeding the drive
Other likely causes — what usually sits behind error code Ed02 on this control. A technician confirms which one it is before any part is replaced.
- A building transformer tap that runs high when the neighborhood load is light
- A large dryer or compressor on the same circuit that causes a surge when it switches off
Safe checks before calling for service
- Turn the machine off at its disconnect.
- Ask the building's electrician or us to verify line voltage at the machine, since that is not an owner measurement.
- Power the washer up again after the check.
- If Ed02 repeats, schedule service with us and note whether it follows the spin.
How a technician diagnoses error code Ed02
- Read the code and the cycle step at which it appears.
- Measure line voltage at the machine, at idle and during a spin.
- Check what other equipment shares the circuit.
- Inspect the connections feeding the drive.
- Test or replace the drive only after the supply is confirmed in range.
- Line voltage and drive bus readings are taken live and call for a trained electrician.
- Drive capacitors can hold a charge after the power is off.
- A building supply that is running high is an electrical-system problem beyond the washer.
How error code Ed02 differs from similar codes
Ed02 is the high DC bus message. Ed01 on this machine is the drive communication link, and Ed03 is the tachometer.
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
Why does Ed02 come right after the spin?
The drive's internal voltage rises when the motor slows and sends energy back.
Can I measure the line voltage myself?
No. That is a measurement for an electrician or us.
Does restarting fix it?
It clears it, but high line voltage or surges can bring it back on the next spin.
Need help with Huebsch error code Ed02?
A technician confirms the cause on site and gives you the price in writing before any work starts.