REMKO CMF-80 v.2 - Manual (Page 34)

REMKO CMF / CMT
General
In the event of system malfunc-
tions, fi rst check the control system
cabling and components for cor-
rectness.
Sensors
All of the sensors can be checked
from the "General/ Service/Sensor
test" screen. All of the connected
sensors have to appear here with
plausible measured values.
Actuators (mixers, pumps)
All of the actuators can be checked
from the "General/ Service/relay
test" screen. This screen enables all
of the relays to be checked indi-
vidually. This enables the correct
connection of these components
to be easily checked (e.g. mixer
direction of rotation).
Communication
The bus and sensor cables should
be checked in the event of com-
munication faults. The cables are
to be spatially separated from
power lines. The polarity is also to
be checked.
Troubleshooting
A corresponding error code ap-
pears on the heat pump manager
display in the event of a fault on
the heating system. The meaning
of the displayed error codes can be taken from the following table.
The system should be restarted
after a brief shut-down after the
fault has been rectifi ed (mains
switch). Subsequently the heat
Display Fault description
E 54 Heat pump fault
E 69 Failure or short in supply sensor HK2
E 70
Failure or short in supply sensor HK1, Multifunction
sensor 1
E 71 Failure or short in lower buffer sensor
E 72 Failure or short in top buffer sensor
E 75 Failure or short external sensor
E 76 Failure or short domestic water sensor
E 78 Failure or short collector sensor
E 80 Failure or short room sensor heating circuit 1
E 81
EEPROM error. The invalid value has been replaced by
the default value. Check parameter values!
E 83 Failure or short room sensor heating circuit 2
E 84 Fault humidity sensor
E 90
Address 0 and 1 on bus. Bus codes 0 and 1 may not
be used simultaneously.
E 91
Bus code assigned. The set bus code is already being
used by another device.
E 135
Failure or short lower WW buffer sensor, Multifunction
sensor 2
E 136
Failure or short heating appliance sensor 2, collector
sensor 2, Multifunction sensor 3
E 137
Failure or short in collector sensor 1, Multifunction
sensor 4
E 140 Failure or short in return line sensor cooling mode
E 200 - E 207 Communication heating appliance 1 to WE 7
E 220 - E 253 Communication BM 0 to BM 15
E 240 Communication Manager
E 241 Communication (individual) heating appliances
E 242 Communication mixer
E 243 Communication Solar
Info 51 * Information: Maintenance required
Info 55 Information: Heat pump cut off
* Customer Service appears on the
display.
The "Info 55" display (heat
pump cut-off) appears during
each energy supply company
off-period.
NOTE
pump manager will re-start, auto-
matically reconfi gure and continue
to operate with the set values.
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