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Tips on troubleshooting
If there is
no display
, there has been a power outage. First check the fuse (6.3A, quick-blow) that
protects the device and the outputs (pumps, valves, etc.) from short circuits and the outputs in con-
nection with the integrated overvoltage protection.
The glass tube fuse is located on the rear side of
the controller behind a screw cap.
Realistic temperature
values but outputs not operating properly
indicate false settings or con-
nections. If it is possible to switch the outputs on and off in the manual mode, the device is in order,
and all of the settings and the terminal should be checked.
Do endurance runs and standstills lead to the same reaction at the output? In other words, does this
pump really run if the solar pump is activated manually, or does the heating circuit pump go into oper-
ation instead of the solar pump?
Are all of the sensors connected with the right terminal (heat up the sensor using a cigarette lighter
and check the temperature display)?
If you still cannot find any error in the system, install a data logger (Bootloader or D-LOGG) in the
system and record the temperature curve and switching statuses.
For data logging, output 14 must
be set to “Data line” using the DL bus
.
Improper temperatures
can have the following causes:
If a value such as -999 is displayed when a sensor short-circuits or 9999 if there is a sensor in-
terruption, the cause may not be a material or terminal error. Is the proper sensor type select-
ed in the entry menu (KTY, PT1000, SPS, GBS, etc.)?
The sensor can also be checked without a measuring device simply by changing the sensor
that is probably defective with one that works at the strip terminal and checking the tempera-
ture display. If the error is reproduced, the problem is probably the sensor. However, if the
problem remains on the same input of the device, the error is either due to the settings for
sensor type, or the input itself is defective (such as defective overvoltage protection).
The following values should be found if the sensors are checked with an ohmmeter.
Temp.
[°C]
0 10 20 25 30 40 50 60 70 80 90 100
R(KTY)[
Ω
]
1630 1772 1922 2000 2080 2245 2417 2597 2785 2980 3182 3392
R(PT1000) [
Ω
] 1000 1039 1078 1097 1117 1155 1194 1232 1271 1309 1347 1385
If the sensor is defective, pay attention to the type of sensor you exchange it with. While it is possible
to use a different type of sensor, the parameters for that input also have to be set to the type used.
