Speed Queen Washer Error Code EiXX: Infra-Red Communication Error

What does Speed Queen error code EiXX mean?

The CHM1792C washer-extractor has an infra-red window for programming and audits, like the Quantum washers. When an exchange through that window goes wrong, the display shows Ei and two further characters. Those two characters are the infra-red code value, and they are what tells a technician which kind of problem it was. The message is shown for only about two seconds before the display clears it, so it is easy to overlook the code and miss the characters entirely. It is about the data link used for programming and audits, not about water, drive or the door of the machine, so the cycle is unaffected. The manual points to the aim and range of the external device, the condition of the window on the control, the two-character value itself, and the external device. Reading the characters while the message is up is the one thing the operator can do that really speeds up the repair.

Affected models and control systems

CHM1792C family washer-extractors, QN models, 20 to 100 lb, with the front-end control and its input and output board.

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

• Ei and two characters flash on the display for about two seconds
• The message appears while a device is being used at the window
• Washing and extracting are unaffected

Possible causes

Listed in Speed Queen's documentation

• Aim and range of the external device
• Window condition on the control
• The two-character value shown
• The external device itself

Other likely causes — what usually sits behind error code EiXX on this control. A technician confirms which one it is before any part is replaced.

• A device used from across the room because the control sits behind a laundry cart
• Film from steam and detergent vapor settling on the control window

Safe checks before calling for service

How a technician diagnoses error code EiXX

1. Capture both characters by repeating the exchange and watching the display.
2. Look up the two-character value in the infra-red code list.
3. Clean the window and repeat from a short, steady distance.
4. Try a second known-good device.
5. Check the control for damage near the window.
6. Replace the control only after the specific code and known-good devices point to it.

How error code EiXX differs from similar codes

EiXX is the general form on CHM1792C washer-extractors. On Quantum washers each infra-red problem has its own named EI code, such as EI01 or EI09.

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.