Huebsch QN Washer-Extractor Error Code E d 25: IPM Over Temperature
E d 25 means the IPM, the power module in the drive that sends current to the motor, got too hot, and the drive stopped the motor to protect it. Power the machine down to clear the message and let it cool. Reduce loads to a normal size, keep the laundry room ventilated, and ask us to clean and check the drive if it comes back.
Medium: the drive stops the motor to protect itself, and the machine can often run again after it cools.
What does Huebsch error code E d 25 mean?
The power module in the drive switches the current that feeds the motor, and that switching makes heat. The module normally sheds it into a heat sink on the drive board, with air moving past. If the module's temperature goes over its limit, the drive stops the motor to save it, and the display shows E d 25. Operators see the washer quit after a run of heavy loads or in a hot laundry room. The manual's steps are to check that the drum spins freely, check for overloading, check for lint on the drive board heat sink, and power down to clear it. Lint, drag and poor airflow are the usual causes. The manual lists lint and dust on the drive board heat sink, drum drag that makes the motor work harder, room temperature and airflow, and the power module and temperature sensing. In a summer with the laundry room running warm all day, the margin shrinks. A drive that sheds heat poorly will trip on a normal load, and one that is clean may run for years.
Affected models and control systems
E d 25 is listed for CHM1792C-family Huebsch QN washer-extractors (20 to 100 lb) with the front-end control. Other controller generations name drive overheating differently.
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
- Washer quits after a run of heavy loads
- Stops more often on hot afternoons
- E d 25 on the display
- Restarts after a rest, then stops again
Possible causes
Listed in Huebsch's documentation
- Lint and dust on the drive board heat sink
- Drum drag making the motor work harder
- Room temperature and airflow
- Power module and its temperature sensing
Other likely causes — what usually sits behind error code E d 25 on this control. A technician confirms which one it is before any part is replaced.
- Cabinet vents blocked by baskets or boxes stacked against the washer
- Cooling fan at the drive running slowly or not at all
- Heat sink coating of dust that acts like insulation
Safe checks before calling for service
- Power the machine down to clear the message and let it cool.
- Reduce loads to a normal size.
- Keep the laundry room ventilated and the area around the washer clear.
- Ask us to clean and check the drive if it comes back, and tell us the time of day and the room temperature.
How a technician diagnoses error code E d 25
- Read the code and note the pattern against room temperature and load size.
- With the machine locked out, inspect the drive board heat sink and vents for lint.
- Check the cooling fan and airflow path around the drive.
- Check drum drag by turning the basket by hand.
- Clean the heat sink and, if the code persists, test the temperature sensing and replace the drive board.
- The drive board holds charge after power is removed, so cleaning it is not safe without discharge procedures.
- Pulling the drive cover exposes 208 to 240 V wiring.
- Telling a clogged heat sink from a failed temperature sensor needs a meter and the manual's thresholds.
How error code E d 25 differs from similar codes
E d 25 is heat in the drive's own power module. E d 22 is a hot motor, and E d 24 is current held high for too long.
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
Why does it happen mostly in summer?
A warm room gives the heat sink less margin, so a drive with a little lint trips earlier.
Can I blow the dust out myself?
Not safely. The drive sits behind panels with live and stored voltage.
Will lighter loads help?
They reduce heat and are a fair short-term measure.
Need help with Huebsch error code E d 25?
A technician confirms the cause on site and gives you the price in writing before any work starts.