Appendix
46 Installation and maintenance instructions Energy
7
0020300876_01
C Overview of diagnostics codes
Note
Since the code table is used for various products, some codes may not be visible for the product in question.
Dia-
gnostics
code
Parameter
Values
Unit Increment, select, explanation
Default set-
ting
Own setting
Min. Max.
d.00 Heating maximum
output
– – kW The maximum heating output
varies depending on the product.
→ Section "Technical data"
Automatic: Unit automatically
adjusts the maximum output to
the current system demand
→ Section
"Technical
data"
Adjustable
d.01 Pump overrun time in
heating mode
1 60 min 1 5 Adjustable
d.02 Maximum burner anti-
cycling time in heating
mode
2 60 min 1 20 Adjustable
d.04 Water temperature in
the cylinder
Current value ℃ – – Not
adjustable
d.05 Determined target
heating flow temper-
ature
Current value
℃ – – Not
adjustable
d.06 Target domestic hot
water temperature
Current value ℃ (Combi boiler only) – Not
adjustable
d.07 Target temperature for
the domestic hot water
cylinder
Current value ℃ – – Not
adjustable
d.08 Status of the 230 V
thermostat
Current value – 0 = Room thermostat open (no
heat requirement)
1 = Room thermostat closed
(heat requirement)
– Not
adjustable
d.09 Target heating flow
temperature that is
set on the eBUS room
thermostat
Current value ℃ – – Not
adjustable
d.10 Status of the internal
pump in the heating
circuit
Current value – off / on – Not
adjustable
d.11 Status of the heating
circuit's shunt pump
Current value – off / on – Not
adjustable
d.13 Status of the domestic
hot water circuit's cir-
culation pump
Current value – off / on – Not
adjustable
d.14 Operating mode of the
modulating pump
0 5 – 0 = variable rotational speed
(auto)
1; 2; 3; 4; 5 = Fixed rotational
speeds → Section "Setting the
pump output"
0 Adjustable
d.15 Pump speed Current value % – – Not
adjustable
d.16 Status of the 24 V
room thermostat
Current value – off = Heating off
on = Heating on
– Not
adjustable
d.17 Heating control – – – off = Flow temperature
on = Return temperature (ad-
justment for underfloor heating.
If you have activated the return
temperature control, the auto-
matic heating output determina-
tion function is not active.)
0 Adjustable
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