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Building Technologies Modular Heating Controller RMH760B CE1P3133en
HVAC Products 15 Fault tracing aids 05.02.2007
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
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