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Error code reference

Speed Queen Dryer Error Code COIN ERROR

Invalid coin input detected (pulse too long or too close to previous input)

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What the COIN ERROR error code actually means

The dryer received a coin signal it did not recognize as valid, either because the coin took too long to register or came in too quickly after the last one. The machine signals this with a beeping tone that lasts about 5 seconds before clearing on its own. If this keeps happening, the coin slot or coin acceptor mechanism likely needs to be inspected or replaced.

Diagnostic procedure

The full COIN ERROR procedure

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1
First diagnostic step
Error tone sounds for 5 seconds then clears. A valid coin entered during error period will terminate the error. If penalty enabled, all previous coins are erased.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of COIN ERROR

Ranked by how often they cause this code
  1. 1Coin jammed or stuck in coin path
  2. 2Worn or faulty coin acceptor
  3. 3Coins inserted too rapidly
  4. 4Electrical noise or wiring issue on coin input line
  5. 5Control board fault

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Questions people ask about COIN ERROR

What does COIN ERROR mean on a Speed Queen dryer?
COIN ERROR means the dryer detected an invalid coin input signal, either because the pulse from the coin acceptor lasted too long or because it arrived too soon after a previous coin was registered. The control board uses timing parameters to validate coin signals, and any signal outside those parameters triggers this error. An error tone sounds for 5 seconds and then the condition clears on its own.
How do I fix the COIN ERROR on a Speed Queen dryer?
Start by inspecting the coin chute and acceptor for any jammed coins, debris, or foreign objects that could be holding the pulse signal open. If the path is clear, examine the wiring between the coin acceptor and the control board for loose connections or corrosion. If problems persist, the coin acceptor unit itself is the most likely component to replace, and in rare cases the control board may need attention.
How much does it cost to repair a Speed Queen dryer showing COIN ERROR?
If the fix is as simple as clearing a jammed coin or cleaning the coin path, there may be no parts cost at all. A replacement coin acceptor unit typically runs in the range of $30 to $100 or more depending on the specific model and supplier. If the control board is at fault, that repair is more involved and can range from $150 to $400 or higher including labor.
Will the COIN ERROR clear on its own, or does it need to be reset?
The error clears automatically after 5 seconds without any manual reset required. You can also terminate the error early by inserting a valid coin during that 5-second window. Be aware that if the machine has the penalty feature enabled, any coins already deposited in that session will be erased when the error occurs.
Is the COIN ERROR on a Speed Queen dryer a safety concern?
No, this error is not a safety issue. It is a payment validation error related to the coin input system and does not affect the dryer's heating, motor, or any safety-critical functions. The machine is designed to clear the error and return to a ready state after the 5-second timeout.

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