Fault Rectification; Safety Shutdown; Fault Leds On The Main Board; Fault Messages - Maico WR 310 Notice De Mise En Service Et D'entretien

UK | 13 Fault rectification

13 Fault rectification

Only a trained specialist, as spec-
ified in Chapter 1, may remedy a
fault or undertake repairs.

13.1 Safety shutdown

fault messages

Timer for
i
The control only responds to a
sensor failure after 10 min. After
acknowledging a temperature sensor
error, wait 10 minutes and then
check that the temperature value is
plausible. If the error persists, con-
tact your specialist installer.
Supply air temperatures too low
If the supply air temperature falls to 5 °C, the
ventilation shuts down completely for reasons
of safety. The fault T-supply air too cold fault
message is displayed on the control unit. All 3
LEDs on the simple
control unit flash. If the supply air temperature
again increases to 10 °C, the ventilation unit
starts up automatically.
Exhaust air temperatures too low
If the exhaust air temperature falls below 12
°C, the ventilation unit shuts down to prevent
rapid, unwanted cooling of the building.
If this happens, there is a malfunction in the
external heating system. After a malfunction:

13.2 Fault LEDs on the main board

Red LED
Flashing slowly
Green LED
Flashing slowly
No display
94
Fault/remedy
Fault
Fault-free,
normal operation
Main controller de-
fective
Remedy: Replace
main controller.
13.3 Fault messages
310/410 320/470
160 Flat 300 Flat
The tables below show potential faults and
their causes. Column 3 "Ackn." states wheth-
er the fault has to be acknowledged after
rectification or not.
M:
Fault rectification must be acknowledged
manually. Only then is the ventilation
unit operable again.
A:
Rectification of a temperature sensor
fault is detected by the control. The ventilation
unit continues running automatically.
Collective alarm
310/410 320/470 160 Flat
300 Flat Trio
The switching contact is also tripped with
every fault message if it
is configured as an alarm contact  Chap-
ter 6.2.
A signal lamp, for example, can be connected
here, which switches on automatically in the
event of a fault ( Chapter 6.2).
The last 5 faults can be displayed under
Retrieve/faults ( Chapter 7.10) along with
the time and date.
170
Trio