Fault Memory - Vaillant ecoMAX pro SERIES Instructions For Use Installation And Servicing

No. Description
1 Central heating maximum output
2 Flue system pressure loss
3 Minimum temperature for
Central Heating
4 Maximum temperature for
Central Heating
5 Pump mode selection
6 External sensor 'slope'
7 External sensor 'offset'
8 Burner override Gas rate/CO
combustion check
9 Cylinder with NTC
10 Adaptive heating or night-day switch
11 Night-day setpoint (Delta value)
12 Central heating flow temperature
13 Central heating return temperature
14 Domestic hot water temp.
15 Tank temp.
16 DHW flow
17 Extractor speed
18 Burner demand power
19 Working phase
20 External sensor setpoint
21 User interface version
22 User interface revision
23 Product code
24 Min. fan speed
25 Max. fan speed
26 Fan speed during ignition
27 Delta
28 'Rechauffe'
29 Running hours
30 Running hours
31

Fault memory*

32
33
34
35
36 Fault memory reset
Instructions for Use, Installation and Servicing ecoMAX pro
Comments
Set minimum to maximum product output (kW)
No function
Set minimum temperature
(22°, 28°, 38° or 50° C)
Set maximum temperature
(50°, 73° or 80° C)
1 – When room stat on (continuous)
2 – When burner on (not continuous)
3 – Winter position/under floor heating (continuous)
No function
No function
0 – normal
2
1 – burner to Pmin
2 – burner to Pmax
Immediately communicated to the mainboard,
and reset to 0 after 15 minutes
No function – however if altered to '1' = ON fault
code 8 will be displayed 'tank NTC fault'
No function
No function
°C
°C
No function
No function
No function
Extractor speed, RPM x 100
kW
No function
No function
No function
No function
Code reference for ecoMAX pro
RPM x 100 (800 – 6,000)
RPM x 100 (2,000 – 6,000)
60 – 100%
No function
No function
Flame presence hours stored in E2prom every 2hrs
Memory 1
Memory 2
Memory 3
Memory 4
Memory 5
Memory can be reset by pressing '+' and
'-' together
Fault Finding 17
18E 28E Action
18 28 adjustable
adjustable
38 38 adjustable
80 80 adjustable
1 1 adjustable
adjustable
adjustable
0 0 adjustable
adjustable
adjustable
adjustable
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149 141 Read only
12 12 Read only
41 57 Read only
80 60 Read only
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+/-
29