Hi,
Looking through the diagnostic codes on my ecoTEC plus 418 boiler, I noticed there are several 'undocumented' codes, can anyone enlighten me as to what they change / represent?
Here are the codes, available options or if it's a status:
//www.diynot.com/forums/viewtopic.php?t=266773&start=60
Thanks!
UpgradeMe
P.s. Does anyone know what "d.23 Summer/Winter" actually does or how you/it changes? it's currently set at Winter.
EDIT: I've now found the meanings for all of the above codes and better explanations for d.17, d.18 & d.23, obtained from other Vaillant manuals. It would appear Vaillant are using the same software across their ranges and these are 'left over' from other boilers.
Looking through the diagnostic codes on my ecoTEC plus 418 boiler, I noticed there are several 'undocumented' codes, can anyone enlighten me as to what they change / represent?
Here are the codes, available options or if it's a status:
- d.14 -- set @ 0 -- Options=0,1,2,3,4,5
d.15 -- Status 0-100 -- Appears to relate to how much kW the boiler is using, perhaps a % of d.0?
d.16 -- set @ 0 -- Status (haven't seen it change)
d.24 -- set @ 0 -- Status (haven't seen it change)
d.26 -- set @ 2 -- Options=1,2,3,4,5,6,7,8,9
d.29 -- set @ 0.00 -- Status (haven't seen it change)
d.63 -- set @ 0 -- Status (haven't seen it change)
d.74 -- set @ 1 -- Options=0,1
//www.diynot.com/forums/viewtopic.php?t=266773&start=60
Thanks!
UpgradeMe
P.s. Does anyone know what "d.23 Summer/Winter" actually does or how you/it changes? it's currently set at Winter.
EDIT: I've now found the meanings for all of the above codes and better explanations for d.17, d.18 & d.23, obtained from other Vaillant manuals. It would appear Vaillant are using the same software across their ranges and these are 'left over' from other boilers.
- d.14 = Pump speed target value - Target value of internal pump in % Possible settings: 0 = auto (factory setting), 1 = 53%, 2 = 60%, 3 = 70%, 4 = 85%, 5 = 100%
d.15 = Pump speed actual value - Actual value internal pump in %
d.16 = Room thermostat 24 V DC on terminal 3 & 4 - 0 = Room thermostat open (no heat request), 1 = Room thermostat closed (heat request)
d.17 = Heating flow/return regulation change over - 0 = flow, 1 = return (factory setting: 0). When connecting underfloor heating or wall heating to the appliance which does not have its own temperature regulation, the temperature regulation mode can be changed from flow temperature regulation (factory setting) to return temperature regulation
d.18 = Pump mode (return) options are 0 = return, 1 = nonstop, 2 = winter (factory setting: 0).
Return: Once the heating requirement has ended, the pump runs on for the time specified under "d. 1“.
Nonstop: The pump is switched on if the rotary knob for setting the heating flow temperature is not at the left hand stop position and the heat requirement is enabled by an external controller.
Winter: The pump is switched on when the rotary knob for setting the heating feed temperature is not in the left-hand stop position.
d.23 = Summer/winter operation (heating on/off) - 1 = heating on (winter mode), 0 = heating off (summer mode)
d.24 = Fan monitor - 0 = contact open, 1 = contact closed
d.26 = Additional relay control ecoTEC
1 = circulation pump
2 = ext. Pump (Default)
3 = charging pump
4 = vapour extraction hood
5 = ext. solenoid valve
6 = ext. error message
7 = not active
8 = remote control, eBUS (not yet supported)
9 = legionella pump (not active)
d.29 = Actual value, sensor circulation water quantity - Actual value in m3/h
d.63 = Number of shutdowns of the air monitoring
d.74 = Anti-Legionella protection - 0=off, 1=for activation enabled by controller