Centrometal Cm Pelet-set Touch 14 Technical Manual page 80

Errors
DATE AND TIME
E7
ARE NOT SET
E8 FAN FAILURE
FILLING IN WITH
E9
IN THE SUPPLY TUBE
80 Technical manual - THE DIGITAL BOILER CONTROLLER Cm-Pelet set_Touch 14-90 kW
PELLETS
Possible cause: Low or fully charged battery. Clock reset at
00:00 and date on 1.1.2000. after switching off or unplugging
(or not configured), and at least one switching time
(boiler/DHW/recirculation) is switched on. If no switching time is
on, this error will not occur, but Warning W2. This burner failure
can not be detected by itself, it can only occur if a switch-on
time is triggered in the work while we have a W2 warning, in
which case the burner goes into the S7 (S7-1) shutdown
phase. If any currents, during the burner operation (all stages
except "OFF", "A0" and S7-3) are disconnected, then the
current is returned and the E7 is acknowledged, the boiler will
perform the necessary actions after power failure and will not
start due to mistakes. If the currents are gone when the burner
is in the "OFF", "A0" and "S7-3" stages, and then the currents
return to the E7, the boiler will not start due to an error.
Boiler status: The boiler can operate, if all the switching times
are off, otherwise it can not operate. The boiler states under
different circumstances are described above„Possible cause".
Troubleshooting: It is necessary to replace the battery
(CR1220) on the control panel PC board.
Possible cause: The RPM sensor does not see the fan
rotation.
Boiler status: Currently goes to OFF mode.
Troubleshooting: Check for the possible rotation of the RPM
sensor, due to the arrangement of the fan bearings (to see if
the sprocket is free to rotate), due to the input of the external
body into the fan coil, due to the release of the thermal
protection of the fan (after cooling the 30°C fan can be started
again) due to too low network voltage.
Possible cause: fulfilling the pellet filling tube with pellets
Boiler status: Currently goes to OFF mode.
Troubleshooting: Check the fullness of the burner grate,
burner furnace, boiler furnace, and chimney, whether the
burner grate is well positioned in the burner (is not installed ON
the el. heater) - valid for CPPL 14-50), whether pellets are not
too humid, inadequate dimensions or quality pellets (for these
burner diameters 6 mm), possible holes on the flexible tube
pipe, too much pellet delivery / low rpm, incorrectly loaded
filling parameters, incorrect combustion air.