MCZ Face - Manual (Page 48)

PELLET STOVES Chapter 6
INSTALLATION AND USE MANUAL page
48
Safety devices Technical service - Rights reserved MCZ GROUP S.p.A. - Reproduction prohibited
The table below describes the possible alarms signalled by the stove,
associated to the respective code that appears on the emergency
panel, and useful suggestions to solve the problem.
MESSAGE ON
DISPLAY
TYPE OF PROBLEM SOLUTION
A01
Fire fails to ignite
Check the level of pellets in the hopper.
Check that the grate is properly inserted in its housing
and does not have any obvious unburnt incrustations;
A02
Fire extinguishes abnormally
Check the level of pellets in the hopper.
Check that the grate is properly inserted in its housing
and does not have any obvious unburnt incrustations;
A03
Pellet tank temperature exceeds foreseen
safety limit.
Structure has overheated due to reduced heat
dissipation
Or
Pressure switch triggered
Wait for the end of the cooling phase, cancel the alarm
and relight the stove placing the fuel load to minimum
(SETTINGS MENU - Pellet recipe) and increasing the room
fan speed. (V1-V5). If the alarm persists, contact technical
support.
Check and clean the ENTIRE smoke duct.
Protect the outlet against any outside wind.
A08
Anomalous operation of smoke fan.
Check that the grate does not have visible unburnt
incrustations. If the alarm persists, contact technical
support.
A09 Smoke temperature too high or smoke probe
faulty
Wait for the end of the cooling phase, cancel the alarm
and relight the stove placing the fuel load to minimum
(section 5.4.4.) and increasing the room fan speed (section
5.4.5). If the alarm persists, contact technical support.
6.2. Exiting alarm condition
To reset the alarm hold the On/Off key down for a few moments: the
stove runs a check to assess whether the cause of the alarm persists or
not. In the first case the alarm will be displayed once again, in the
second case it will go to Off.
Only after the cause of the blockage has been permanently eliminated
can another attempt to relight the stove be made.
6.3. Normal shutdown (panel display: shutdown)
If the shutdown key is pressed or there is an alarm signal, the stove
enters the thermal shutdown phase foreseeing automatic execution of
the following phases:
 Pellet loading stops
 The room fan maintains set speed until smoke T reaches
100°C, then it automatically sets to minimum speed until
shutdown temperature is reached
 The smoke fan sets on maximum and stays there for a fixed
time of 10 minutes, at the end of which if smoke T has dropped
below 45°C (parameters can be displayed in the INFO menu) it
shuts down definitively, otherwise it sets to minimum speed
until such threshold is reached and then shuts down.