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Error code · Water Heater

GE GeoSpring PF/PH Code F91, F92: Memory Failure on the Control Board

F91 and F92 on 2025-and-newer GE Profile GeoSpring PF and PH heat pump water heaters are DataFlash failures. DataFlash is the memory on the control board that stores the program and settings. If the control cannot…

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Code
F91, F92
Appliance
Water Heater
Brand
GE
Warranty
30-day workmanship

What F91, F92 means

F91 and F92 on 2025-and-newer GE Profile GeoSpring PF and PH heat pump water heaters are DataFlash failures. DataFlash is the memory on the control board that stores the program and settings. If the control cannot read or write it correctly, it shows F91 or F92. You might see the heater stop heating, behave erratically, or lose settings. The listed approach is to cycle power after the repair has been done.

Common causes of F91, F92

  • DataFlash memory on the control board
  • Control board failure
  • Power interruption during operation
  • Power quality at the unit
✓ One safe check you can try

1. Take a picture of the display and the rating label before you call. 2. Do not repeatedly switch the power off and on. 3. Do not open the control area. 4. Call us. After the repair is complete, we cycle the power so the control restarts cleanly.

! Why to stop there
  • The cause may be the memory, the board, or the power feeding it.
  • We check the supply along with the board.
  • We quote the repair in writing before starting.
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.
→Same appliance

Other Water Heater codes

bAd linE (F12)GE GeoSpring First-Generation GEH50DEED Code bAd linE (F12): Supply voltage low F13GE GeoSpring First-Generation GEH50DEED Code F13: Keypad key stuck Dirty Filter (F14)GE GeoSpring First-Generation GEH50DEED Code Dirty Filter (F14): Clean the filter F15GE GeoSpring First-Generation GEH50DEED Code F15: DataFlash memory error Attention! Tank not filled!GE GeoSpring GEH50DNSRSA Message "Attention! Tank not filled!": Fill before power Heat Pump FailureGE GeoSpring GEH50DXSRGA Message "Heat Pump Failure": Heat pump section problem Water Heater FailureGE GeoSpring GEH50DNSRSA Message "Water Heater Failure": Electric side problem System FailureGE GeoSpring GEH50DXSRGA Message "System Failure": Immediate attention
F91, F92F91, F92 questions
What is DataFlash?

It is the control board's memory for its program and settings. If it cannot be read or written correctly, the control cannot run the heater normally.

Are F91 and F92 the same?

They are listed together as DataFlash failures. We treat them as one memory problem and confirm it when we test the control board and its supply.

Can I reset it myself?

Power cycling is done after the service in this case. Repeated resets before the repair do not fix a memory problem, so we ask that you wait for us to do it properly.

Book a visit

Still seeing F91, F92?

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

(713) 547-5545