Steca TF B001, Инструкция по установке и эксплуатации

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745.089 | 11.30
EN
8.2 Fault messages
Faults are displayed as shown below, the backlighting is red.
Display (example) Description Solution
An interruption was detected
at a sensor input of Grundfos
Direct Sensors
TM
(temperature
or volume flow).
Check the cable and Direct
Sensors TM connected to the
sensor input.
A short-circuit was detected
at a sensor input of Grundfos
Direct Sensors TM (temperature
or volume flow).
Check the cable and Direct
Sensors TM connected to the
sensor input.
The target hot water tempera-
ture has not been reached. Pos-
sible causes:
• The storage tank is not
heated up.
• The isolating valve in the
primary circuit is closed.
• Air is in the pipes.
• The pump is faulty.
• The heat exchanger is dirty
or calcified.
• Heat up the storage
tank.
• Check the isolating
valve.
• Bleed the pipes.
• Check the pump.
• Decalcify/clean the heat
exchanger.
A short-circuit exists at output
R1 , the pump flashes. Possible
causes:
• The pump is faulty.
• Wiring fault
• Check the pump.
• Check the wiring to
R1
.
Output
R1
is overloaded, the
pump connected to output
R1
flashes. Cause: The permissible
values for
R1
specified on the
type plate have been perma-
nently exceeded, the output has
been switched off.
Check the electrical data of
the pump, replace pump if
necessary.
R1
is automati-
cally switched on again.