Operating Instructions and Installation Instructions

BMS Interface Module
33
5 Errors
5.1
5.2
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:
Lock-out codes
Internal code
Display
error code
Description
0 C02 Internal error control
1 F04 Ignition error (3 attempts)
3 C22 Watchdog error
4 C02 Internal error control
5 C02 Internal error control
6 C02 Internal error control
7 F02 Fan error
8 C02 Internal error control
9 C02 Internal error control
10 F09 Maximum temperature error
11 C02 Internal error control
16 E03 Temperature difference top tank
17 C02 Internal error control
18 F07 Flame error
19 F08 Flame error
22 F05 Flame error
23 F03 APS not closed
24 F03 APS not open
25 F15 Flue gas temperature error
28 E05 Blocking error for 20 hours
255 - No error
Blocking codes
Internal code
Display
error code
Description
36 C02 Internal error control
37 C02 Internal error control
38 C02 Internal error control
39 C02 Internal error control
40 F11 Flame error
41 E01 Maximum temperature error
Table continuous on the next page.