Speed Queen Washer-Extractor Error Code E d 23: Over-Current Shunt
E d 23 is a fatal over-current shunt error from the IPM on CHM1792C washer-extractors. The drive's power module saw too much current and shut down until power is removed. Cut power, wait for the lock, and call us if it comes back.
High: a fatal drive error that stops the machine until power is removed.
- Code
- E d 23
- 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 23 mean?
The drive's power module, called the IPM, switches the current that turns the motor. A shunt is a precise resistor that lets the drive measure that current. If the measurement shows a sudden surge past the safe limit, the drive shuts down at once, because excess current can destroy the module or the motor. E d 23 reports that event (display text: E d 23). It is called fatal because the machine stays stopped until power is removed. A wet load stays in the drum while the code is displayed. The manual suggests a drum or motor that binds when it starts, motor phase windings shorted between legs, or a failed power module on the drive board. Hard-starting under a heavy load can create a current spike, but a surge strong enough to trip this protection usually points to a real electrical or mechanical problem. The owner's manual says to cut power to clear 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 23 on the display
- The motor stops abruptly
- The machine will not restart until power is cut
Possible causes
Listed in Speed Queen's documentation
- Drum or motor that binds when it starts
- Motor phase windings shorted between legs
- Drive board power module failed
Other likely causes — what usually sits behind error code E d 23 on this control. A technician confirms which one it is before any part is replaced.
- A foreign object wedged between the basket and the tub
- A motor cable damaged where it flexes near the motor
Safe checks before calling for service
- Cut power to the machine, which is how the owner's manual says to clear it.
- Wait for the door lock to let go before opening.
- Keep hands off the drum while the machine has power.
- If the code returns, request service and tell us whether it tripped at the start of the cycle or in spin.
How a technician diagnoses error code E d 23
- Read E d 23 and note when it trips.
- With power locked out, turn the basket by hand for binding.
- Measure motor winding resistance between phases and to ground.
- Inspect the motor cable and connectors for damage.
- Replace the motor or drive board only after the tests.
- Testing windings means isolating 208-240 V and waiting for the drive's stored charge to drain.
- A tripped surge can leave a failed power module, which is not safe to run again.
- Finding a mechanical bind requires opening the cabinet around a heavy basket.
How error code E d 23 differs from similar codes
E d 24 is a similar fatal over-current, based on current over time; E d 23 is the instantaneous surge.
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
Why is it called fatal?
The machine stays stopped until power is removed.
Is E d 23 the same as E d 24?
No. E d 23 is a sudden surge; E d 24 tracks current over time.
Will the load come out?
After the lock releases, the load can be removed.
Need help with Speed Queen error code E d 23?
A technician confirms the cause on site and gives you the price in writing before any work starts.