Speed Queen Washer-Extractor Error Code E d 24: I2T Over-Current
E d 24 on a CHM1792C washer-extractor is a fatal hardware over-current error based on I2T. The drive tracks motor current over time and the allowed amount was exceeded, so the machine stays stopped until power is removed. Shut it off, wait for the lock, and call us if it returns.
High: a fatal drive error that stops the machine until power is removed.
- Code
- E d 24
- 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 24 mean?
Motor current is not dangerous for a moment, but it is damaging if it stays high. The drive keeps a running total of how much current the motor draws and for how long, which is what the I2T name refers to. When that total passes the allowed amount, the drive stops the motor and shows E d 24 (display text: E d 24). Because it is a fatal error, the machine remains stopped until power is removed. This differs from E d 23, which responds to a sudden surge. Here the trouble builds up, as it would with a motor working too hard for a long time. The owner's manual tells a technician to check for a locked rotor or a problem in the motor windings. It lists a rotor that is slow to turn under load, motor windings that draw too much current over time, and a drive board that misjudges the motor current. Do not force the door; the lock releases on its own once the drum stops.
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 24 on the display
- The motor cuts out after running under strain
- The machine stays stopped until power is cut
Possible causes
Listed in Speed Queen's documentation
- Rotor slow to turn under load
- Motor windings that draw too much current over time
- Drive board that misjudges the motor current
Other likely causes — what usually sits behind error code E d 24 on this control. A technician confirms which one it is before any part is replaced.
- A bearing that has begun to bind and loads the motor on every spin
- Repeated full-capacity loads of heavy wet towels
Safe checks before calling for service
- Shut the machine off to clear the code; the owner's manual lists that as the reset.
- Wait for the lock to release; the door is not forced.
- Leave the drum alone while it has power.
- If the code returns, book a visit with us and tell us how heavy the loads were.
How a technician diagnoses error code E d 24
- Read E d 24 and review recent load sizes and cycle history.
- Turn the basket by hand with power locked out to feel for drag.
- Measure motor winding resistance and insulation to ground.
- Check the motor current draw against its rating while it runs.
- Replace the motor or drive board only after the readings support it.
- Measuring running current requires live 208-240 V work with the cabinet open.
- Heavy baskets and stored motion create a crush risk near the drive.
- A drive that misjudges current should be condemned only after the motor is tested.
How error code E d 24 differs from similar codes
E d 23 is an instantaneous surge, E d 24 is current over time, and E d 31 is an overload detection during a cycle.
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
What does I2T mean?
It tracks current over time, so a modest overload that lasts too long can trip it.
Is it the same as E d 23?
No. E d 23 responds to a sudden surge; E d 24 responds to accumulated current.
Will the machine run again after a power-down?
It may, but a repeat means the motor or drum is working too hard.
Need help with Speed Queen error code E d 24?
A technician confirms the cause on site and gives you the price in writing before any work starts.