Centrometal Cm Pelet-set Touch 14 Technical Manual page 90

Warnings
14.2 LIST AND TROUBLESHOOTING OF WARNINGS
W1
DEFAULT SETTINGS
DATE AND TIME
W2
ARE NOT SET
LOW RETURN
W3
TEMPERATURE
W4 FUEL LEVEL
W5 NOT ACTIVE
W6 NOT ACTIVE
W7 NOT ACTIVE
W8 NOT ACTIVE
90 Technical manual - THE DIGITAL BOILER CONTROLLER Cm-Pelet set_Touch 14-90 kW
FACTORY
Possible cause: It occurs when the controller automatically
loads the factory parameters as the data in the data base is
faulty/incorrect. Under normal circumstances the warning
occurs during the first start after changing the software.
Boiler status: The boiler does not operate and it cannot
continue to operate.
What needs to be done: Call an authorized serviceman who
has to make the first commissioning and set all parameters one
more time.
Possible cause: The hour resets to 00:00 and the date to
1.1.2000. after switching off the controller on the main switch or
due to power outage.
Boiler status: The boiler can operate (if the boiler switching
times are used the E7 error occurs and the boiler does not
operate).
What needs to be done: It is necessary to change the battery
on the controller screen (CR 1220), set the date and hour on
the controller.
Possible cause: Problem with the mixing valve/actuator
(safety of the return), return sensor.
Boiler status: The boiler will continue to operate normally.
What needs to be done: The cause needs to be removed as
with a longer operation the boiler will condense and the flue
gas passages will be blocked.
Possible cause: Low pellet level in the tank, the level is
sufficient for a shorter boiler operation.
Boiler status: The boiler will operate a certain time and if the
tank will not be supplemented with pellets minimal above the
fuel sensor level the error "E121 - no fuel" will appear which
means that there are no pellets to continue the boiler operation
any longer and the boiler will stop.
What needs to be done: Fill the tank with pellets minimal
above the fuel sensor level in the pellet tank.