Speed Queen Washer Error Code Eio 52: Compartment 2 Valve Shorted
Eio 52 means the input/output board found a short on the output for the compartment 2 valve. A pulsing alarm sounds for two minutes, and the manual clears it by disconnecting and reconnecting power. If it comes back, a technician should test that valve.
Medium: a shorted valve output needs service, and the manual describes only an alarm and a power reset.
- Code
- Eio 52
- Maker
- Speed Queen
- Equipment
- Washers
- Applies to
- Alliance/Speed Queen CHM1792C_SVG washer-extractor (model numbers on p. 8)
What does Speed Queen error code Eio 52 mean?
Eio 52 is the second in a run of numbered compartment valve codes. The input/output board drives a separate output for compartment 2 and monitors it. A short on that line brings up the code and the text “Compartment 2 Valve Shorted”.
Per the manual, the control sounds a pulsing alarm tone for two minutes, and the way to clear the error is to disconnect and then reconnect power. The manual gives no causes. What an operator can do is notice whether the problem appears at the same program step each time, because compartment valves are used at particular points in a cycle. When the code shows only at that step, the technician can run the program with a meter on that valve. It is far less likely that the entire board has failed if only compartment 2 reports a short.
Affected models and control systems
Alliance/Speed Queen washer-extractors covered by programming manual CHM1792C_SVG; the model numbers are listed on page 8 of that manual.
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
- Two-minute alarm tone
- Eio 52 shown
- Compartment 2 step does not run normally
Possible causes
Likely causes — what usually sits behind error code Eio 52 on this control. A technician confirms which one it is before any part is replaced.
- Compartment 2 valve coil with an internal short
- Insulation worn on the wire to compartment 2
- Output stage for compartment 2 on the board shorted
Safe checks before calling for service
- Write down Eio 52 and the program step.
- Disconnect and reconnect power per the manual.
- Run the program again and see if the code returns at the same point.
- Tell the technician whether the other compartment valves have behaved normally.
How a technician diagnoses error code Eio 52
- Reproduce the code at the same program step.
- With the power off, measure the compartment 2 coil.
- Trace the wire for chafing and check the connector.
- Check the board output.
- Replace the part the tests identify.
- The valve and its wiring are in a part of the cabinet with mains-voltage parts.
- Coil readings need a meter and the specification.
- A shorted output can overheat a board if the machine is restarted repeatedly.
Technical reference
- Document
- Washer-Extractor Programming CHM1792C_SVG (Original Instructions)
- Edition
- Part No. F8641001ENR4, January 2020
- Models / control
- Alliance/Speed Queen CHM1792C_SVG washer-extractor (model numbers on p. 8)
- 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 compartment 2 specifically?
Each compartment valve has its own output, and the board reports the number of the one that is shorted.
What if it appears only once?
Mention it anyway. A short that comes and goes is often a wire touching metal.
Will it harm my laundry?
The manual does not say. Ask before running loads that rely on that compartment.
Need help with Speed Queen error code Eio 52?
A technician confirms the cause on site and gives you the price in writing before any work starts.