Status Modes; Diagnostic Mode - Vaillant 824/2 E Instructions For Installation Manual

10 Fault Finding
To access the various modes press the buttons on the
control panel as follows:
Mode Status mode
To display Press "i" button
the reqiured mode
To return to Press "i" button
Normal mode
Note!
If no key is pressed for approx. 4 minutes the
display will automatically change back to
Normal mode.
Display Indication
S.00 No heat demand (heating operation)
S.01 Fan running (heating operation)
S.02 Pump running – pre ignition (heating operation)
S.03 Ignition sequence (heating operation)
S.04 Burner ignited (heating operation)
S.05 Fan and pump over run (837/637 only)
S.07 Pump over run (heating operation)
S.08 Anti cycling mode (heating operation)
S.10 Hot water demand (hot water operation)
S.11 Fan running (hot water operation)
S.13 Ignition sequence (hot water operation)
S.14 Burner ignited (hot water operation)
S.16 Fan over run (hot water operation)
S.17 Pump over run (hot water operation)
S.20 Warmstart demand (warm start)
S.21 Fan running (warm start)
S.23 Ignition sequence (warm start)
S.24 Burner ignited (warm start)
S.27 Pump over run (warm start)
S.28 Anti cycling mode (warm start)
S.30 No heating demand from external controls
S.31 Summer mode (heating control knob in off position)
S.32 Main heat exchanger anti freeze protection due to fan speed deviation
too great (837/637 only)
S.33 Check air/flue system
S.34 Frost protection mode
S.36 No heating demand from low voltage controls
S.39 Contact thermostat has been activated (under floor systems)
S.53 Delay mode due to lack of water in system (~2,5 mins.)
S.54 Delay mode due to flow temperature gradient too steep
(approx 10 mins.)
Table 10.1: Status modes
38
Supplied By www.heating spares.co Tel. 0161 620 6677

10.5 Status Modes

The status mode provides information about the current
operating status of the boiler.

Diagnostic mode

To display status mode proceed as follows:
Press the "i" and
• Press the "i" button below the display, and a status
"+" button
code will appear in the display indicating the current
operational status of the boiler (see table below).
simultaneously
To cancel the status code mode proceed as follows:
Press the "i" and
• Press the "i" button below the display
or
"+" button
• Do not press any key for approximately four minutes.
simultaneously
• The display will now revert back to showing the
current flow temperature.
Instructions for Installation and Servicing turboMAX plus and thermoCOMPACT R1
turboMAX plus thermoCOMPACT
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