Biopel MINI - Installation and Operation Instructions
50
5.
Photosensor does not see flame:
a.
Sensitivity: Service menu, Feeder settings, Ignition
i.
Brightness - set a lower number for higher sensitivity and vice versa. The minimum number should be
around 30. If it is lower you risk that the photosensor sees ambient light without a flame in the boiler.
b.
Bad contact in the burner socket.
i.
If the display shows the message Feder Sensor Damaged, it means that the socket on the burner is badly
connected or damaged. Check the inside of both sockets on the burner.
c.
Cannot see the light during ignition.
i.
The flame is too small or the pellets are blocking the flame detection in the burner. You need to extend
the operating time of the internal feeder so that there are none left in the burner and all are delivered
to the burner grate.
6.
Failed SW update:
a.
USB must be formatted in FAT32 file system
b.
or the USB file is corrupted.
We recommend to re-format the USB and upload the file for the update. Or replace the USB key
with another one
.
7.
No PID regulation:
a.
The CH sensor or flue gas sensor is not connected.
b.
Flue gas temperature is higher than 170°C.
c.
PID regulation is affected by the rate of temperature change over time, so each system is likely to respond
differently.
8.
Lambda sensor reduces boiler power:
a.
Change the modulation range in the Installation menu, Lambda. The factory setting is -15 to +15. It is necessary
to reduce this range.
b.
Leaks in the flue outlet connections and in the lambda sensor sink. False air is being drawn in, Lambda is trying
to regulate it.
9.
Lambda sensor degrades combustion quality:
a.
If the flame is consistently large and dark after the Lambda sensor is activated (i.e., not enough combustion air)
then it means that the Lambda sensor is measuring a large amount of excess air and trying to reduce it to the
set limit by adding fuel or reducing fan speed.
b.
This could be due to a leak in some part of the flue gas outlet, boiler or lambda sensor hole. These leaks allow
additional air into the boiler, which the lambda sensor tries to eliminate by the above-mentioned means. The
only place that air enters the boiler should be the burner fan.
c.
Also, reduce the modulation range that the Lambda sensor can do, under the Min. Change and Max. Change
items in the Installation Menu, Lambda.
10.
The data changed on the internet will be uploaded to the boiler after a long time:
a.
Normally, with a good internet connection, it takes 1 minute for internet data to be uploaded to the boiler unit
b.
If the data takes 10 minutes or more to upload, for example, this means that the internet connection is bad or
one of the additional devices is activated and not connected to the external socket: RT10 room thermostat,
Lambda sensor, 431N module. Connect these additional devices or deactivate them in the settings of the
additional device.
11.
When the cause of the alarm is removed, it will reappear
a.
The unit has fixed the detection of possible alarms to 15s. If you remove the cause of an alarm after the last
detection, the alarm may still reappear after the cause is deactivated. After reconfirmation, the alarm will no
longer appear if the cause of the alarm has been removed.
12.
Failed synchronisation
a.
The unit synchronises the data with the control unit at start-up.
b.
If the synchronisation fails, the cause is inconsistent SW in the display and the control unit. Upload the latest
version of the SW to both devices.
13.
Clogged burner grate:
a.
Clogged grate with unburned pellets, too much ash on the grate.
b.
External feeder dosing time too long. Reduce the Max. feeder coefficient in the Coefficients function in the
