▶Attach the control panel to the boiler door again by following the
above procedure in reverse order and secure it with 2 screws.
e
[a/3/2|
e
[8/0/7|
e
Fault:
The contacts to the heating circuit flow sensor have
shorted or are interrupted, the sensor has been
connected incorrectly or is defective.
NoOffHeating circuit pump 2 is
activated depending on the
preset value. The power to
the mixer is switched off and
the mixer stays in the state it
was last put in (can be
adjusted manually).
e
[a/3/2|
e
[8/1/6|
e
Fault:
MM10 not available or no communication. The heating
circuit addresses on the MM10 and the RC35 do not
match up, the MM10 or the bus circuit is connected
incorrectly or is defective, MM10 is not recognized by the
RC35.
NoOffHeating circuit 2 cannot be
operated correctly. MM10
and the mixer automatically
goes into emergency
operation. Heating circuit
pump 2 is activated
continuously. Monitor data in
the RC35 is invalid.
e
[c/a/\|
e
[2/8/6|
e
Fault:
The return temperature sensor has measured a return
temperature higher than 105 °C.
Yes
5)
6)
7)
8)
flashing
1Hz
No heating operation and no
DHW.
e
[c/u/\|
e
[2/4/0|
e
Fault:
The contacts for the return temperature sensor have
shorted.
Yes
5)
6)
7)
8)
flashing
1Hz
No heating operation and no
DHW.
e
[e/l/\|
e
[2/9/0|
e
Fault:
The UBA 3 or the KIM is defective.
No
4)
5)
OffNo heating operation and no
DHW.
e
[e/\/\|
9)
e
[2/4/2|
–
[2/8/7|
e
Fault:
The UBA 3 or the KIM is defective.
Yes
5)
6)
7)
8)
flashing
1Hz
No heating operation and no
DHW.
[h/\/7|
Operating phase:
The system pressure is too low (less than 1.0 bar).
NoOffPossibly no heating operation
or no DHW available.
e
[h/\/7|
e
Operating phase:
The system pressure is too low (less than 1.0 bar).
NoOffPossibly no heating operation
or no DHW available.
[p/-.-|Operating phase:
The system pressure is too high (over 4.0 bar) or the
pressure sensor has not detected a system pressure
(boiler functioning normally).
NoOff
[\/r/e|Fault:
Reset is carried out. After pressing the “Reset” button this
code is displayed for 5 seconds.
Off
1)Any indication with a permanent dot in the bottom right-hand corner.
2)Only visible on the Service Tool or a specific RC regulator.
3)Any indication with a flashing dot in the bottom right-hand corner.
4)This fault code may deactivate again automatically after a specific time (without reset). Heating and DHW are now available once more.
5)If more faults occur simultaneously, the relevant fault codes are shown after another. If one of these fault codes is a flashing fault code, the other fault codes will also flash.
6)The cause of this fault must be corrected first.
7)The display values, e.g. the system pressure, are also shown as flashing codes.
8)In the event of this fault, the circulation pump is started up and remains in continuous operation in order to minimise the possibility of the heating system freezing up.
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