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Error code · Washer

GE UltraFresh Washer Code 78: Board Software Mismatch

Code 78 on GE UltraFresh front-load washers, the GFW510, GFW550, GFW650 and GFW850 series, means the main board does not share the same communication software version as another board in the washer. The boards then cannot…

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Code
78
Appliance
Washer
Brand
GE
Warranty
30-day workmanship

What 78 means

Code 78 on GE UltraFresh front-load washers, the GFW510, GFW550, GFW650 and GFW850 series, means the main board does not share the same communication software version as another board in the washer. The boards then cannot exchange information properly. Stored in the error history for a technician to read, it can also be displayed on these models. Owners may see a washer that will not start, a panel that does not respond as expected or a cycle that stops early.

Common causes of 78

  • Main board and another board with different software versions
  • A recently replaced board
  • Communication wiring between boards
  • Control startup after a power event
✓ One safe check you can try

1. Check that the plug is seated and the outlet works. 2. Note whether any board was replaced recently and by whom. 3. Leave the cabinet closed; board software is not an owner matter. 4. Do not try to swap or reseat boards yourself.

! Why to stop there
  • A mismatch usually follows a board change, but a connection problem can imitate it
  • We check the harness between the boards and confirm which board does not match
  • You approve a written price before any board is replaced, with a 30-day workmanship warranty
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Washer codes

Two furthest lights flashingGE Top-Load Washer Two Furthest Lights Flashing: General Cycle Error PoGE Top-Load Washer Message "Po": Slow to Pump Out the Water bALAnCINgGE Top-Load Washer Message "bALAnCINg": Load Is Uneven in the Tub CLrFLtrGE Compact Washer Message "CLrFLtr": Drain Pump Filter Needs Cleaning Load RebalancingGE Front-Load Washer Message "Load Rebalancing": Washer Is Correcting an Uneven Load A problem has been detectedGE Profile Harmony Washer Message "A problem has been detected with this unit": Electronics Alert 70GE UltraFresh Washer Code 70: Inverter Start-Up Repeats 85GE UltraFresh Washer Code 85: Voltage Out of Range
7878 questions
Can I fix a software mismatch?

Not at home. The boards must be compatible, which is checked with the right parts. A mismatch is usually an installation or parts question, so it helps to tell us if a board was replaced recently.

Why did it appear?

Most often a board was replaced with one that does not match. A loose link between boards can look similar. Most often a board was swapped for a different version, and a loose link between boards looks very similar.

Can I tell which board does not match?

Not from the outside. A technician checks both boards and their link to find the one that differs from the others. That check happens before any new board is ordered for you.

Book a visit

Still seeing 78?

A technician diagnoses it on site and gives you the price in writing before any work starts.

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