Standard Alarm Codes and Fault Finding on MCZ RED Boilers

Standard Alarm Codes:

A01 Fire failed to ignite
Check the pellet level in the tank.
Check whether the brazier is correctly seated and does not have any evident incrustations of noncombusted fuel;
Check whether the pellet igniter heats up.

A02 Abnormal fire extinguishing
Results from fire extinguishing due to lack of fuel
(tank empty).

A03 The pellet tank safety device has been triggered.
Overheating has been detected, caused by a malfunction or an overload of fuel
Check the parameters of the recipe used
The boiler was used at maximum performance for too long.

A08 Smoke blower fan faulty
Check that the smoke blower fan is clean to ensure that no dirt is clogging it.
If this does not solve the problem the smoke blower is faulty. Call an authorised service centre to have the fan replaced.

A10 The pellet igniter is faulty
Contact an authorised service centre to have the component replaced.

A11 Fault in the geared motor of the pellet feed
Contact an authorised service centre to have the component replaced.

A13 Electronic board fault
This alarm is triggered if the board does not communicate with its peripherals (cables poorly connected) or if there is a fault in the electronic board.
Contact a service centre to have the component replaced.

A18 Temperature of the water tank too high
This alarm is triggered if the water inside the system does not circulate and the safety temperature (95°) and boiling temperature rise.
Check the pump and release it if it has shut down.
Check whether there are closed cut-off cocks.

Service: Regular maintenance advice
If this message appears at start-up, this means that the preset operating time before maintenance has expired and maintenance is due to be carried out. Contact a qualified technician.

Previous Version Controller:

DEP FAIL  Smoke outlet pipe obstructed or back-pressure caused by wind outside.
Check and clean the ENTIRE smoke duct or check whether the outside wind prevents the smoke from exiting.
Only once the cause of the shutdown has been permanently remedied can the stove be restarted.

ALAR FAN FAIL  Smoke blower fan speed too low or fan off
The smoke blower fan is blocked by a foreign body.
The fan is broken.
Check how clean the fan is and whether dirt is slowing it down.
If the problem is not solved through cleaning, replace the smoke blower fan
Check that the encoder cable is connected correctly

ALAR SOND FUMI  The smoke sensor is damaged.
Replace the smoke sensor

ALAR SIC FAIL  The safety device that controls the pellet tank or the temperature of the water in the boiler has
been triggered.
Overheating has been detected, caused by a malfunction or an overload of fuel
Check the parameters of the recipe used
Check whether there are closed cut-off cocks.
The boiler was used at maximum performance for too long.

ALAR HOT TEMP  The temperature of the smoke reaches and remains above the set parameters for too long.
Clean the inside of the exchanger and operate the boiler at maximum performance for shorter periods of time.
Also check the quality of pellets.

ALAR NO ACC  First failed start-up attempt.
If this was the first start-up and the tank was empty, repeat the start-up process or check the level of pellets in the tank.
Check the pellet igniter.

ALAR NO FIRE  Boiler shuts down and when the smoke sensor temperature is below the set threshold.
It is due to the flame dying out due to clogging or when the pellets in the tank have run out.

Attachments:
MCZ_RED_Fault_Codes.pdf