56
Ubiflux F300 / F300+
GB
Fault
code
Cause
Action appliance
Action installer
E100
Pressure sensor supply fan
defective.
Red pressure hoses blocked
or “kinked”
- Switches to constant rpm control.
- The preheater switches on at outdoor
temperatures below 0°C.
• Take the voltage from the appliance.
• Check the red pressure hoses (and
pressure tubes) for fouling, kinking
and damage
E101
Pressure sensor extract fan
defective.
Blue pressure hoses blocked
or “kinked”
- Switches to constant rpm control.
- The preheater switches on at outdoor
temperatures below 0°C
• Take the voltage from the appliance.
• Check blue pressure hoses (and
pressure tubes) for fouling, kinking
and damage
E103
Bypass fault .
- None.
(Current too low → stepper motor not
correctly connected or effective;
current too high → short-circuit in
wiring or stepper motor)
• Take the voltage from the appliance.
• Check connection stepper motor;
replace wiring or stepper motor
E104
Extract fan defective.
- Both fans are switched off.
- Preheater is switched off.
- If applicable: Postheater is switched off.
- Restart every 5 minutes.
• Take the voltage from the appliance.
• Replace extract fan.
• But voltage back on appliance; Fault
will automatically be reset.
• Check cabling.
E105
Supply fan defective.
- Both fans are switched off.
- Preheater is switched off.
- If applicable: Postheater is switched off.
- Restart every 5 minutes.
• Take the voltage from the appliance.
• Replace
• Put voltage back on appliance; Fault
will automatically be reset.
• Check cabling.
E106
The temperature sensor that
measures the outdoor tempe-
rature is defective. .
- Both fans are switched off.
- Preheater is switched off.
- Bypass closes and is blocked.
• Take the voltage from the appliance.
• Replace temperature sensor
• Put voltage back on appliance; fault
will automatically be reset.
E107
The temperature sensor that
measures the temperature of
the extract air is defective.
.
- Bypass closes and is blocked.
• Take the voltage from the appliance.
• Replace indoor temperature
sensor
E108
If present: The temperature
sensor that measures the ex-
ternal temperature is defective.
- Postheater is switched off.
- If applicable: Geo heat exchanger is
switched off.
• Replace external temperature
sensor
Dip switches on control board
not set correctly.
- Appliance does nothing; red fault LED
on multiple switch is not activated
either.
• Put dip switches incorrect position.
(see § 9.1).
Note!
If mode 2 of a multiple switch does not work, the modular connector of the multiple switch has been connected the wrong way round.
Cut off one of the RJ connectors to the multiple switch and mount a new connector the other way round.
Storing / Fault / Störung / Dérangement
7
