Instruction manual - BMS Interface
5 Errors
5.1 Introduction
5.2 Lock-out codes
5.3 Blocking codes
Through the BMS Interface, internal error codes can be viewed. On parameter 20, the
actual error code for lock outs and blocking errors are displayed. When a solar system
has been connected, parameter 43 gives the actual error code of the solar system.
Parameters 10 … 14, 15 … 19 and 23 … 27 show the five most recent errors of
respectively the lock outs, blocking errors and solar errors.
These internal codes are not the same as the text that is visible on the display and in the
user manual of the water heater. The table below shows the explanation of these internal
codes:
Ignition error (3 attempts)
Maximum temperature error
Temperature difference top tank
Flue gas temperature error
Blocking error for 20 hours
Maximum temperature error
Table continuous on the next page.
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