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Error code reference

Maytag Washer Error Code b1

Blocked coin 1 or coin drop control circuit failure; coin recognition and price display disabled while blockage persists.

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What the b1 error code actually means

The b1 code means the washer's coin slot is either jammed with something or the electronic system that reads coins has stopped working. While this error is active, the machine won't accept coins or show the price, so it can't be used. This is a problem specific to coin-operated laundry machines, not home washers.

Diagnostic procedure

The full b1 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

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1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
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 b1

Ranked by how often they cause this code
  1. 1Physical blockage in coin acceptor or chute
  2. 2Faulty or worn coin acceptor
  3. 3Damaged or corroded wiring harness connector
  4. 4Broken wire in coin drop control circuit
  5. 5Control board circuit failure

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Questions people ask about b1

What does b1 mean on a Maytag washer?
The b1 code on a Maytag washer indicates a blocked coin 1 condition or a coin drop control circuit failure. It applies to coin-operated commercial washer models and means the machine cannot process coin input or display pricing. The washer will remain out of service for users until the blockage is cleared or the circuit fault is resolved.
Will resetting the washer clear the b1 error code?
A simple power reset is unlikely to permanently clear the b1 code if the underlying cause, such as a physical blockage or a circuit fault, has not been addressed. The code may temporarily disappear but will return once the machine attempts to process coin input again. The root cause must be identified and corrected to resolve the error.
How much does it cost to repair a Maytag washer b1 error?
If the fix is simply clearing a jammed coin or debris from the acceptor, there may be no parts cost involved. Replacing a faulty coin acceptor assembly typically costs between $40 and $150 for parts depending on the model, plus labor if a technician is hired. Control board replacement is a more expensive repair and can range from $150 to $400 or more for parts alone.
How do I fix the b1 error on a Maytag coin-operated washer?
Start by inspecting the coin acceptor and coin chute for any physical obstruction such as a jammed coin, slug, or debris, and remove anything blocking the path. If no obstruction is found, check the wiring harness connectors between the coin acceptor and the control board for corrosion or damage. If the wiring and connections are intact, the coin acceptor itself may need to be replaced. A control board failure is also possible but should only be considered after the other components are tested.
Is it safe to use the washer while the b1 code is displayed?
While the b1 error is active, coin recognition and price display are disabled, so the machine effectively cannot be started through normal coin operation. The error does not indicate an immediate safety hazard such as a water leak or electrical short, but the machine is non-functional for end users until the fault is cleared.

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