Errors

• - select type -
• Elite EL-110
• Elite EL-150
• Elite EL-220
• Elite EL-299
• Elite EL-301
• Elite EL-399
• Elite EL-80
• Elite Fire Tube Combi (floor Mount)
• Elite Fire Tube Combi (wall Mount) EFTC-140W
• Elite FT EFT-110
• Elite FT EFT-155
• Elite FT EFT-199
• Elite FT EFT-285
• Elite FT EFT-399
• Elite FT EFT-55
• Elite FT EFT-80
• Elite Premier EP-110
• Elite Premier EP-150
• Elite Premier EP-220
• Elite Premier EP-299
• Elite Premier EP-301
• Elite premier EP-399
• Elite Premier EP-80
• Enduro TI ETI-1000
• Enduro TI ETI-750
• Hydra Smart RT-199
• Hydra Smart RTC-199
• Mod con 1000
• Mod con 1700
• Mod con 300
• Mod con 500
• Mod Con 500 After december 2012
• Mod con 850
• Mod Con 850 After december 2012
• Phoenix PH-76-50
• Phoenix PH-76-60
• Phoenix PH-76-80
• Phoenix PH100
• Phoenix PH100-119
• Phoenix PH100-55
• Phoenix PH100-80
• Phoenix PH130
• Phoenix PH130-119
• Phoenix PH130-55
• Phoenix PH130-55SA
• Phoenix PH130-80
• Phoenix PH160
• Phoenix PH160-119
• Phoenix PH160-55
• Phoenix PH160-80
• Phoenix PH199
• Phoenix PH199-119
• Phoenix PH199-55
• Phoenix PH199-55SA
• Phoenix PH199-80
• Phoenix PHM130-100
• Phoenix PHM130-80
• Phoenix PHM199-100
• Phoenix PHM199-80
• Pionier PHR 130-55C
• Pionier PHR 160-55C
• Pionier PHR 199-55C
• Pionier PHR100-55
• Pionier PHR130-55
• Pionier PHR160-55
• Pionier PHR199-55
• UFT-100W
• UFT-120W
• UFT-140W
• UFT-80W

• - select code -
• DHW
• E03
• E07
• E19
• F01
• F02
• F03
• F04
• F05
• F06
• F09
• F10
• F11
• F13
• F20
• F31
• FLU
• FOO
• FOU
• LOU
• PP
• PRO
• TT

Boiler type Elite EL-301

Error code FOU

Cause:

FOU indicates an issue with the outdoor sensor. It is shorted, damaged, or disconnected from the boiler.

Solution:

- Check outdoor sensor connections and wiring. Ensure the sensor and wiring are intact and that the sensor is connected to the boiler.
- Check the outdoor sensor resistance with an ohmmeter.
- Replace the outdoor sensor.