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(469) 638-3215Er OF is the opposite of a slow fill. The washer has detected water at its overflow level, and if the fill doesn’t stop on its own, close the faucets before anything else.
Speed Queen’s guides say Er OF appears when the washer has filled to the overflow level. If the lid or door is closed and locked, the machine pumps the water out on its own. Front-load owners are told to clean the foreign object trap, since a blocked pump can leave water that reads as overfill. If the code stays, Speed Queen’s instruction is to unplug the washer and call for service. A washer that keeps filling while unplugged is a strong sign the inlet valve isn’t closing, so shut both faucets right away. Source: Speed Queen top-load user’s guide (opens in a new tab).
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Watch for these, especially the first one.
Most of these need a technician.
Protect the floor first, then follow Speed Queen’s steps.
Close the hot and cold valves behind the washer so no more water can enter, whatever the valve inside is doing.
With the lid or door closed and locked, Speed Queen says the washer drains itself. Give it a few minutes before opening anything.
If you have a front-load model, clean the foreign object trap as the guide describes, then try one cycle with the faucets back on while you stay nearby.
Schedule a repair if:
More help, including other Speed Queen codes:
Speed Queen washer Er FL error codeSpeed Queen washer Er nF error codeSpeed Queen washer Er dr error codeAll Speed Queen repairSpeed Queen front-load user’s guideWritten estimate first
A valve that won’t close can flood a laundry room. We test the inlet valve and level sensing and quote the repair before we start. ALAS is a local independent shop, not a Speed Queen or Alliance Laundry Systems service agent.

It can be. If water keeps entering after the washer is unplugged, the inlet valve isn’t closing. Turn both faucets off and leave them off until it is repaired. After-hours visits are available at an extra charge.
That is by design. Speed Queen’s guides say the washer pumps out when it reaches overflow level, as long as the lid or door is closed and locked.
You can try: faucets off, let it drain, clean the front-load trap if you have one. If the code persists, Speed Queen says to unplug the machine and call for service.
The usual suspects are the inlet valve and the level sensing. A technician confirms which one before ordering anything.
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