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Error code · Water Heater

GE GeoSpring PF/PH Code F95: Software Failure in the CTA Module

F95 on 2025-and-newer GE Profile GeoSpring PF and PH series water heaters is a CTA communication module software failure. The CTA module handles communication between the heater and outside systems, such as grid or utility signals.…

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Code
F95
Appliance
Water Heater
Brand
GE
Warranty
30-day workmanship

What F95 means

F95 on 2025-and-newer GE Profile GeoSpring PF and PH series water heaters is a CTA communication module software failure. The CTA module handles communication between the heater and outside systems, such as grid or utility signals. When its software does not run correctly, the control reports F95. Owners may see connected or load-management features stop working, while basic heating often continues, depending on the model.

Common causes of F95

  • CTA module software
  • Communication link to the control
  • CTA module hardware
✓ One safe check you can try

1. Get the model number from the label, and the code from the display, ready to read out. 2. Check whether the heater still makes hot water. 3. Do not open the unit or unplug anything inside it. 4. Call us so we can check the module and its connection to the control.

! Why to stop there
  • A software problem can be the module or its connection to the control.
  • We confirm basic heating first.
  • We quote the repair in writing before work begins.
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 Water Heater codes

F10GE GeoSpring First-Generation GEH50DEED Code F10: Top element problem F11GE GeoSpring First-Generation GEH50DEED Code F11: Tank must be filled 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
F95F95 questions
What is the CTA module?

It is the communication module that lets the heater exchange signals with outside systems. F95 means the software running on that module is not working correctly.

Will hot water stop?

Often not, since the module handles communication and not heating. We confirm how your heater behaves when we test it, and we tell you what we find.

Can I fix this by resetting?

We would not rely on it. The code means the module's software failed, and a technician needs to look at the module and its link to the control.

Book a visit

Still seeing F95?

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

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