Speed Queen Washer-Extractor Error Code E d 33: Motor Start-Up Failed
E d 33 on a CHM1792C washer-extractor is a fatal start-up failure. The drive tried to start the motor and could not get it going, so it stops until power is removed. Power down, take load out if the drum was full, and call us if it returns.
High: a fatal error; the motor will not start and the machine stays stopped.
- Code
- E d 33
- 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 33 mean?
When a spin or tumble begins, the drive applies power to the motor in a controlled sequence and watches for the motor to respond. If the motor does not begin turning in the time allowed, the drive treats the start-up as failed and stops. This is a fatal error, so the machine stays stopped until power is removed, and the load stays in the drum while the code remains on the display (display text: E d 33). The owner's manual lists a binding drum, a bad motor harness, the motor and the drive board among the causes. A drum that binds is the simplest to picture, since the motor is asked to move something that will not move. A damaged harness may carry power to only part of the motor. A motor that will not begin turning could have a damaged winding. A drive board that fails to start the motor completes the list. The code is about the moment of starting, not about running.
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 33 on the display
- The motor hums or twitches but the basket stays still
- The machine remains stopped until power is cut
Possible causes
Listed in Speed Queen's documentation
- Drum that binds so the motor cannot start
- Motor harness that is damaged at start-up
- Motor that will not begin turning
- Drive board that fails to start the motor
Other likely causes — what usually sits behind error code E d 33 on this control. A technician confirms which one it is before any part is replaced.
- A shirt or strap wedged between the basket and the shell
- A loose motor plug that passes only part of the power at start
Safe checks before calling for service
- Power down the machine, as the owner's manual says for drive codes.
- Leave the door shut until the lock has released.
- If the drum was full, take part of the load out.
- If the code returns, request a technician visit and mention any humming at start.
How a technician diagnoses error code E d 33
- Read E d 33 and listen at start for humming or twitching.
- Turn the basket by hand with power locked out for binding.
- Inspect the motor harness and connectors under strain.
- Measure winding resistance for balance across phases.
- Replace the motor or drive board once the tests point to it.
- A start-up test means energizing a drive at 208-240 V with the cabinet open.
- A wedged object can sit behind the basket and need the machine disassembled.
- Telling a weak winding from a bad harness takes a meter and a known specification.
How error code E d 33 differs from similar codes
E d 33 is a failure to start, while E d 34 specifically reports a locked rotor.
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 E d 33 the same as E d 34?
They are close. E d 33 is a start-up failure; E d 34 specifically says the rotor is locked.
Why does the motor hum?
A motor that is powered but cannot turn often hums.
Is the code permanent?
It stays until power is removed, and returns if the cause remains.
Need help with Speed Queen error code E d 33?
A technician confirms the cause on site and gives you the price in writing before any work starts.