Basic Documentation
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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 16 Fault tracing aids 2017-09-29
Number Name
For explanation, refer to
section / subsection…
74
DHW flow sensor primary error
10.12
75
DHW flow sensor sec error
10.12
76
DHW flow sensor cons error
10.12
77
DHW return sensor error
10.12
321
Flue gas temp sensor error
6.11
2101
Legionella protection error
10.12
2202
Main contr h’request mod error
8.10
2203
Prim contr h’request mod error
8.10
2301
Boiler burner fault
6.11
2311
Burner no checkback signal
6.11
2321
Boiler water shortage
6.11
2331
Boiler overpressure
6.11
2341
Boiler underpressure
6.11
2351
Shutoff valve no checkb signal
6.11
2361
Flue gas overtemperature
6.11
2371
Boiler test operation active
6.11
2401
[Boiler pump] overload
6.11
2411
[Boiler pump] no flow
6.11
2421
[Boiler pump B] overload
6.11
2431
[Boiler pump B] no flow
6.11
2441
[Boiler pump] fault
6.11
2491
[Main pump] overload
8.10
2492
[Main pump B] overload
8.10
2493
[Main pump] no flow
8.10
2494
[Main pump B] no flow
8.10
2495
[Main pump] fault
8.10
2501
[System pump] overload
8.10
2502
[System pump B] overload
8.10
2503
[System pump] no flow
8.10
2504
[System pump B] no flow
8.10
2505
[System pump] fault
8.10
2521
[Heat circuit 1 pump] overload
9.11
2522
[Heat circuit 1 pump B] overload
9.11
2523
[Heat circuit 1 pump] no flow
9.11
2524
[Heat circuit 1 pump B] no flow
9.11
2525
[Heat circuit 1 pump] fault
9.11
2531
[Heat circuit 2 pump] overload
9.11
2532
[Heat circuit 2 pump B] overload
9.11
2533
[Heat circuit 2 pump] no flow
9.11
2534
[Heat circuit 2 pump B] no flow
9.11
2535
[Heat circuit 2 pump] fault
9.11
2541
[Heat circuit 3 pump] overload
9.11
2542
[Heat circuit 3 pump B] overload
9.11
2543
[Heat circuit 3 pump] no flow
9.11
2544
[Heat circuit 3 pump B] no flow
9.11
2545
[Heat circuit 3 pump] fault
9.11
2551
[DHW primary pump] overload
10.12