Fault Codes; Fault Memory - Vaillant ecoTEC plus 612 Instructions For Installation And Servicing

Display Meaning
d.61 Number of lock outs
d.64 Average ignition time
d.65 Maximum ignition time
d.68 Successful ignitions in the first attempt
d.69 Successful ignitions in the second attempt
d.70 Set priority-changeover valve position
d.71 Target value max. heating flow temperature
d.72 Pump return flow time after charging an electroni-
cally controlled hot water storage (also warm start and
charging through C1-C2)
d.73 Offset for warm start target value (only 800 series)
d.75 Maximum charging time for a storage without own
controller
d.77 Storage partial load (storage charging capacity limit)
d.78 Storage charging temperature limit (target flow tem-
perature in storage mode)
d.80 Heating operating hours
d.81 Water heating operating hours (800 series only)
d.82 Hystereses in heating mode
d.83 Hystereses in hot water operation
d.84 Maintenance indicator: Number of hours until the next
maintenance
d.93 DSN appliance variant setting
d.95 eBus address
d.96 Factory setting
Table 8.3 Diagnosis codes of the second diagnosis level (cont.)

8.1.3 Fault codes

Fault codes take priority over all other display functions
in the event of a system fault occurring.
If multiple faults occur, the corresponding fault codes
are displayed alternately for about two seconds each.

8.1.4 Fault memory

The fault memory stores details of the ten most recent
faults.
• Press the "i" and "–" buttons simultaneously.
• Use the "+" button to scroll back through the list of
memorised errors.
To cancel fault error memory display mode, proceed as
follows:
• Press the "i" button below the display or
• Do not touch any key for about four minutes. The dis-
play will now revert back to showing the current flow
temperature.
Instructions for installation and servicing ecoTEC
Display value/adjustable value
Number of unsuccessful ignitions in the last attempt
in seconds
in seconds
Quantity
Quantity
0 = Normal mode (factory setting)
1 = Centre position
2 = permanent heating position
Adjustment range in °C: 40 to 85 (Factory setting: 75)
Adjustment range in sec: 0, 10, 20 to 600
Factory setting for 800 series: 80
Factory setting for 600 series: 300
Adjustment range: -15 K to +5 K (Factory setting: 0 K)
Adjustment range in min: 20, 21, 22 to 90 (Factory setting: 45)
Adjustment range in kW: appliance-specific
Factory setting: max. output
Adjustment range in °C 55 to 90 (Factory setting: 80)
in h
in h
Quantity
Quantity
Adjustment range: 0 to 3000 h and "-"
Factory setting: "-" (300 corresponds to 3000 h)
Adjustment range: 0 to 99
Adjustment range (automatic scan)
1 = Resetting adjustable parameters to factory setting
Troubleshooting 8
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