Bradford White · Heat pump RE2H (-1NCWT models)
Bradford White Heat pump RE2H (-1NCWT models) error code F11
What it means
Dry Tank fault. Control checks to ensure that the T2 tank temperature sensor has not risen more than 5ºF during the first 22 minutes after the unit is powered on. (The compressor is engaged for 20 minutes after a 2 minute wait for the system to allow the high and low side pressures to equalize.) After 1 failed Dry Tank test, "F11" is displayed. After 5 failed tests, an audible alarm will sound.
The manual says the control must detect this 1 time(s) before the code is displayed.
What Bradford White says to do
These steps involve electrical testing or parts replacement. Bradford White's manuals tell owners to leave that work to a qualified service technician.
Check to ensure the tank is full of water. If full: Check T2 sensor mounting, wiring and resistance. Use service mode to monitor T2 sensor temperature. If T2 checks OK, control assembly may have failed.
Last checked 2026-10-03.
Safety first
- DISCONNECT POWER BEFORE SERVICING. IMPORTANT: RECONNECT ALL GROUNDING DEVICES. All parts capable of conducting electrical current are grounded; grounding wires, screws, straps, clips, nuts or washers removed for service must be returned to their original condition and properly fastened. (p.1)
From the manufacturer's manual for this series.
The same code on other models
Codes mean different things on different heaters. Match the series to the model number on your rating label.
- Bradford White AeroTherm (RE2H…-1NCTT models): F11
- GE GeoSpring GEH50DEED (2012–2014): F11
- GE GeoSpring DEEJS / DFEJS (2015–2016): F11
- GE Profile GEOSPRING Smart (PF / PH, 2025 on): F11, F21