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Error code · Water Heater

GE GeoSpring PF/PH Code F11, F21: Upper Element Not Responding

F11 and F21 on a GE Profile GeoSpring PF or PH heat pump water heater (2025 and newer) mean the control sees a problem with the upper heating element. The listed meaning is an upper heating…

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Code
F11, F21
Appliance
Water Heater
Brand
GE
Warranty
30-day workmanship

What F11, F21 means

F11 and F21 on a GE Profile GeoSpring PF or PH heat pump water heater (2025 and newer) mean the control sees a problem with the upper heating element. The listed meaning is an upper heating element failure. Owners typically notice lukewarm water, a tank that cannot reach the set temperature, or a long wait for hot water in high-demand mode. The upper element is the one that does the quick top-of-tank heating, so a loss there is felt fast.

Common causes of F11, F21

  • The upper element and its terminal connections
  • The upper thermostat or high-limit device
  • Wiring between the element and the control
  • Control board output for the upper element
✓ One safe check you can try

1. Note the code and the model number on the label. 2. Look at the breaker for the water heater and make sure it is on. 3. Keep every cover closed, because the element wiring is live and sits next to the tank. 4. Call us and we will test the upper element circuit.

! Why to stop there
  • A lost upper element and a tripped limit device can show up the same way, so we separate them with testing.
  • Whether the lower element is also weak affects the repair plan.
  • We confirm the problem before replacing the element and quote the price in writing first.
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

F5, F6, F7, F8GE GeoSpring First-Generation GEH50DEED Codes F5-F8: Sensor failures F9GE GeoSpring First-Generation GEH50DEED Code F9: Bottom element problem 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
F11, F21F11, F21 questions
What is the difference between F11 and F21?

They are listed as the same upper heating element failure on this platform. We read them as one circuit and confirm which element is involved while we test the unit on site.

Why is my water barely warm?

The upper element normally supplies fast heat at the top of the tank. Without it the heater leans on the heat pump, which is slower and weaker in a cold space, so the water feels lukewarm.

Does the repair come with a warranty?

Yes. We cover our workmanship for 30 days, and we give you the price in writing before any work begins, so you know what the element replacement involves before you agree to it.

Book a visit

Still seeing F11, F21?

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

(713) 547-5545