Speed Queen Washer-Extractor Error Code E d 25: Power Module Too Hot
E d 25 on a CHM1792C washer-extractor means the IPM, the power module on the drive board, got too hot. The drive stops the motor until things cool. Turn the machine off, let it cool, and keep lint away from the outside of the machine.
High: the drive stops the motor until the module cools, and repeat overheating can damage the board.
- Code
- E d 25
- Maker
- Speed Queen
- Equipment
- Washers
- Applies to
- CHM1792C family washer-extractor (QN models, 20-100 lb) front-end control
What does Speed Queen error code E d 25 mean?
The power module on the drive board switches the current that runs the motor, and like any switching part it makes heat. A heat sink carries that heat away, and a sensor on the module reports its temperature to the drive. When the reading goes past the limit, the drive stops the motor so the module is not destroyed, and the display shows E d 25 (display text: E d 25). The load stays in the drum while the code is up. The owner's manual points at a drum that will not spin freely, an overloaded machine, and lint packed on the drive board's heat sink, which keeps the module from shedding heat. It lists lint on the heat sink, a drum that drags, poor airflow around the cabinet, and a power module that overheats. This is about the module, not the motor, which has its own temperature code, E d 22. A laundry with a lot of airborne lint, or a machine pushed against a wall, is a common setting for it.
Affected models and control systems
Speed Queen CHM1792C family washer-extractors (QN models, 20-100 lb) with the front-end control. Other washer-extractor families, such as CHM495R, list different codes.
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
- E d 25 on the display
- The machine stops after running a while
- The cabinet feels warm near the drive area
Possible causes
Listed in Speed Queen's documentation
- Lint caked on the drive board heat sink
- Drum that drags and loads the drive
- Poor airflow around the washer cabinet
- Power module that overheats
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.
- A cooling fan that has stopped turning
- A machine installed with too little clearance behind it
Safe checks before calling for service
- Turn the machine off at its power control, the reset the owner's manual gives.
- Let it cool, and let the lock release before the door opens.
- Keep lint and clutter away from the outside of the machine.
- If the code returns, ask us for service and tell us how long it had been running.
How a technician diagnoses error code E d 25
- Read E d 25 and note how long the machine ran before it stopped.
- Check clearance and airflow around the cabinet.
- Inspect the drive board heat sink and any fan for lint and function.
- Turn the basket by hand with power locked out to feel for drag.
- Replace the drive board only after cooling and drum load are ruled out.
- The heat sink is on the drive board, which holds stored charge and 208-240 V.
- Cleaning lint off live electronics needs the machine isolated and discharged.
- Telling an overheating module from a bad sensor reading needs the right tools.
How error code E d 25 differs from similar codes
E d 25 is the power module's temperature; E d 22 is the motor's temperature.
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 Speed Queen washer error codes
Is lint really a cause?
Yes. Lint on the heat sink keeps the module from shedding heat.
How long should I let it cool?
Until the cabinet is no longer warm; the code clears only after a power-down.
Is E d 25 the same as E d 22?
No. One concerns the power module and the other the motor.
Need help with Speed Queen error code E d 25?
A technician confirms the cause on site and gives you the price in writing before any work starts.