Biddle CA2 Manual page 56

F
AULTS
C L
ODE IKELY CAUSE
E5 Electrically-heated models:
Heating does not stop because of a
faulty relay.
This may be a serious defect
that may pose a risk to persons.
E6 For water-heated models:
Risk of freezing because discharge
air temperature is too low. Frost
protection has been activated (see
section 2.5.2).
Freezing may cause damage to
the heat exchanger.
E7 No air flow.
The
unitselectricheatingwillbeswitchedof
f.'
F1 Fault in air valve.
56
W
HAT TO DO
1. Delete the fault message (see section 5.3.2).
2. Switch the power supply to the unit Off and On.
3. Let the air curtain work for some time with the
heating disabled (see section 3.6) and check if the
discharged air stays cold.
A dangerous defect is concerned if:
- heating yet continues;
- this fault message returns within 30 minutes;
- this fault occurs frequently.
In any such case, act as follows:
- disconnect the unit from the power supply
immediately.
- contact Biddle.
1. Ensure that the temperature in the room gets higher
than 8 ºC.
2. Follow the instructions for fault code F3.
You can avoid this fault by having the central heating
system switched on by the unit in the event of a frost risk
61a/b. Function of output
(Set function
1. Delete the fault message (see section 5.3.2).
2. Check the fans. If one or more fans do not work,
check:
- the fan wiring;
- the connections on the printed circuit board
(connectors X130, X120 and X110);
- the transformer fuse;
- the transformer itself.
If these are OK: Replace the fan.
1. Delete the fault message (see section 5.3.2).
2. Change the heating strength using the control panel,
and check if the air valve can move.
3. Remove any obstacles from the air valve's range.
4. Check that the unit is not switched on at the power
supply source (if the unit is switched on at the power
supply source, this can damage the valve drive)
5. Check wiring and connectors X140 and X210.
6. Replace the valve drive.
C A C
OMFORT IR URTAIN
Frost protection
to ).