Technical data

45
Troubleshooting 8
Instructions for installation and servicing ecoMAX 45
Key to status codes
Code Meaning ecoMAX 600 ecoMAX 800
S.0 No heat demand (heating operation) X X
S.1 Pump running (heating operation) X X
S.2 Pump running – pre ignition (heating operation) X X
S.3 Ignition sequence (heating operation) X X
S.4 Burner ignited (heating operation) X X
S.5 –
S.6 Heating system fan over run X X
S.7 Pump over run (heating operation) X X
S.8 Anti cycling mode (heating operation) X X
S.10 Hot water demand (hot water operation) X
S.11 Pump and fan running (hot water operation) X
S.13 Ignition sequence (hot water operation) X
S.14 Burner ignited (hot water operation) X
S.15 –
S.16 Fan over run (hot water operation) X
S.17 Pump over run (hot water operation) X
S.20 Warmstart demand (warm start) X
S.21 Pump and fan running (warm start) X
S.23 Ignition sequence (warm start) X
S.24 Burner ignited (warm start) X
S.25 –
S.26 Hot–water fan over run X
S.27 Pump over run (warm start) X
S.28 Anti cycling mode (warm start) X
S.30 No heating demand from external controls X X
S.32 Fan unit waiting period X X
S.34 Frost protection mode X X
S.36 No heating demand from low voltage controls X X
S.37 Fan unit waiting period X X
S.39 Contact thermostat has been activated (under floor systems) X X
S.53 Delay mode due to lack of water in system (~20 mins.) X X
S.54 Low water–level waiting period X X
Table 8.1 Status codes
83 41 77_12 GB04.04.qxd 22.09.2004 12:34 Uhr Seite 45