Speed Queen Washer Error Code E Sd: Slow Drain Warning
E Sd is a slow drain warning, not a stop. The washer can keep working, but a slow drain usually gets worse. Look along the drain hose and the floor drain, clear the code as below, and call us if E Sd returns.
Low: a warning that the machine keeps running through, though the drain is getting worse.
- Code
- E Sd
- Maker
- Speed Queen
- Equipment
- Washers
- Applies to
- Quantum topload (TLW13C family) electronic control; CHM1792C family washer-extractor (QN models, 20-100 lb) front-end control; CHM495R family washer-extractor front-end control (20-100 lb)
What does Speed Queen error code E Sd mean?
Speed Queen controls time every drain. On Quantum topload washers the drain took longer than 185 seconds, while CHM1792C and CHM495R washer-extractors flag a drain longer than average. Instead of stopping, the control completes the cycle and shows E Sd as a warning, and on the CHM1792C the right-hand decimal point also lights. The aim is to tell you early. A drain that is a little slow today often becomes a drain that fails outright, which would stop the machine with water in the tub. The usual reasons are physical and close at hand: a partly clogged drain hose, standpipe or floor drain, a drain pump or screen packed with lint, small objects lodged in the drain path, or a level sensor that is slow to report the empty tub. Since the washer keeps working, E Sd can be ignored for weeks, which is the risk, because the build-up in the drain path continues the whole time.
Affected models and control systems
This page covers Quantum topload washers in the TLW13C family, CHM1792C washer-extractors and CHM495R washer-extractors. A drain that fails completely is reported as E dr.
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
- The washer finishes but the tub empties slowly
- Water lingers in the drum before the spin
- A decimal point lights on a CHM1792C
Possible causes
Listed in Speed Queen's documentation
- A partly clogged drain hose, standpipe or floor drain
- A drain pump or screen packed with lint
- Small objects lodged in the drain path
- A level sensor that is slow to report the empty tub
Other likely causes — what usually sits behind error code E Sd on this control. A technician confirms which one it is before any part is replaced.
- A shared floor drain that backs up when several machines empty at once
- Soap scum and lint hardened inside the standpipe into a narrow channel
Safe checks before calling for service
- On a CHM1792C, tap START three times inside five seconds, or cycle power, so the decimal point goes out, as the owner's manual says.
- Look along the drain hose for kinks.
- Watch whether water leaves the floor drain slowly.
- If E Sd returns, note how long the tub took to empty and call us to arrange service.
How a technician diagnoses error code E Sd
- Read the code and ask how long drains have been taking.
- Time a drain and watch the floor drain and standpipe for backup.
- Check the drain hose and pump inlet for lint and objects.
- Confirm the pump runs freely and moves water at full rate.
- Check the level sensor response at the end of the drain and replace only the part that fails.
- Opening the pump housing on a full tub risks a flood, and its motor runs on line voltage.
- A restriction in the house drain line is beyond what an operator can clear safely.
- Separating a weak pump from a slow level sensor takes timed drain tests.
How error code E Sd differs from similar codes
E dr is the harder version, when the water does not leave in time and the cycle stops.
Technical reference
- Document
- Commercial Troubleshooting Topload Washers TLW13C, Part No. 203502R4, March 2024, Error Code Listing (pp. 30-32)
- Edition
- Part No. 203502R4, March 2024
- Models / control
- Quantum topload (TLW13C family) electronic control; CHM1792C family washer-extractor (QN models, 20-100 lb) front-end control; CHM495R family washer-extractor front-end control (20-100 lb)
- Section
- Section 3 General Troubleshooting - 20. Error Code Listing, printed pp. 30-32 (PDF pp. 32-34)
- 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
Can I keep using the washer with E Sd?
Yes, since it is a warning, but a slow drain usually gets worse, so get it looked at.
How do I clear the decimal point on a CHM1792C?
The owner's manual says to tap START three times inside five seconds or cycle power.
Is E Sd the same as E dr?
No. E Sd warns of a slow drain; E dr means the drain failed to finish.
Need help with Speed Queen error code E Sd?
A technician confirms the cause on site and gives you the price in writing before any work starts.