E
RRORS
H
EAT
RECOVERY
UNIT
en-56
en
5.5
Error messages on the control panel
For models with
b-touch
control panel
Some errors are displayed with a symbol on the home
screen of the
b-touch
panel.
Note:
n
When the error message is touched, the screen
displays an explanation, together with a list of the
actions to be taken.
Note:
n
The message will disappear from the Home screen
when the error has been remedied.
5.6
Remedying errors that are not accompanied by an error mes-
sage
If you suspect an error but no error message is displayed:
1. Referring to the preceding sections, check whether you
can easily resolve the problem.
2. Try to resolve the problem using the table below. Techni-
cal expertise is required for this.
C
ODE
P
ROBABLE
CAUSE
W
HAT
TO
DO
E7
Fan error
1. Check the fans. If one or more fans do not work, please
check:
- the fan wiring;
- the connections on the electronics module;
- the transformer fuse;
- the transformer itself.
2. If these are in order, then replace the fan.
F1
Dirty Filter
Replace the filters.
F17
With automatic CO
2
control:
The CO
2
sensor in the inlet duct is
not working.
1. Check the sensor’s wiring and connection (connector
X377).
2. If these are in order, then replace the sensor.
