Fault Messages - Wolf WRS-K Installation And Operating Instructions Manual

Alarms are signalled by the red LED flashing. Pressing the key displays the alarm in plain text; pressing the key on
the alarm display again acknowledges remedied alarms. If several alarms are active, this is indicated by a symbol
in the top r.h. corner. Further alarms can be called up by means of the scroll keys.
Fault, inverter, ventilation
fan (AL01)
Motor temperature too high,
ventilation fan (AL02)
Isolator switch, ventilation
fan (AL03)
Air flow monitor, supply air
(AL04)
Fault, inverter, extract fan
(AL05)
Motor temperature too high,
extract fan (AL06)
Isolator switch, extract fan
(AL07)
Air flow monitor, extract air
(AL08)
Outdoor air filter
contaminated (AL09)
Supply air filter
contaminated (AL10)
Extract air filter
contaminated (AL11)
Pump fault, DHW bank
(AL12)
58

14. Fault messages

The system shuts Fault recognition
down through FU; FU faulty
The system shuts Fan motor temperature
down too high
The system shuts Isolator switch of supply
down air fan switched off
The system shuts Supply air V-belt torn;
down barometric cell or lead
to barometric cell faulty
- Air damper closed
The system shuts Fault recognition
down through FU; FU faulty
The system shuts Fan motor temperature
down too high
The system shuts Isolator switch of extract
down air fan has switched off
The system shuts Extract air fan belt torn;
down barometric cell or lead
to barometric cell faulty
- Air damper closed
Display only The outdoor air filter has
exceeded its limit
Display only The supply air filter has
exceeded its limit
Display only The extract air filter has
exceeded its limit
The system shuts An overload relay of an
down external heating circuit
pump has responded
Check inverter; acknowledge
fault message
Allow the motor to cool down until
the cold conductor temperature
has returned into the permissible
range; check the power drawn
by the supply air fan; if the
fault repeats, check the motor,
bearing and fan. Acknowledge
fault messages
Switch on supply air fan isolator
switch; acknowledge fault
message
Replace drive belt; check
barometric cell or lead;
acknowledge fault message
Check the actuators of the air
damper
Check inverter; acknowledge
fault message
Allow the motor to cool down until
the cold conductor temperature
has returned into the permissible
range; check the power drawn
by the supply air fan; if the
fault repeats, check the motor,
bearing and fan. Acknowledge
fault messages
Switch on isolator switch of
extract air fan, acknowledge fault
message
Replace drive belt; check
barometric cell or lead;
acknowledge fault message
Check the actuators of the air
damper
Clean or replace filter element
Clean or replace filter element
Clean or replace filter element
Reset overload relay; check
power drawn by the pump,
acknowledge fault message
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