REMKO SuperTec-Monitor - Manual (Page 24)

Fault code Meaning Cause Remedial measures
F9
High and low pressure switches
63H, 63L
Thermal relay 51CM
If the circuits of the identified
components report a contact
for over 3 mins after applying
the supply voltage, fault
message "F9" is issued.
Poor or detached contacts on
the connectors on the control
board of the outdoor unit, or
connectors unplugged.
Poor or detached contacts on
other components.
Components were triggered by
defective components.
Control board defective.
Check contacts on the
connectors on the control board
and repair.
Check contacts and cables of the
components and repair.
Test electrical components.
Replace defective components.
Replace defective control board.
FA
Thermal relay 51CM
If the circuits of the thermal
relay 51CM report a contact for
over 3 mins after applying the
supply voltage, fault message
"FA" is issued.
Poor or detached contacts on
connector 51CM on the control
board of the outdoor unit, or
connector unplugged.
Poor or detached contacts on
thermal relay 51CM.
Thermal relay 51CM was
triggered due to defective
components.
Control board defective.
Check contacts on connector
51CM on the control board and
repair.
Check contacts and cable on
51CM and repair.
Test electrical components.
Replace defective components.
Replace defective control board.
EA
Control cables between indoor
and outdoor units defective,
too many indoor units
connected
A test circuit will automatically
detect the number of indoor
units connected. If the control
cables continue not to work for
longer than 4 mins after the
power supply is applied, fault
message "EA" is issued.
Poor or detached contacts on
the connections of the control
cables, or wiring fault.
Incorrectly dimensioned control
cables.
Interference noise in the control
cables.
Check contacts, cables and
connections of the control cables
on all units and repair.
Check cable section and lengths
of the control cables and correct:
max. length 50 m (indoor-
outdoor) or max. 30 m (indoor-
indoor)
Check polarity of control cables
S1, S2 and S3 and correct.
Switch the supply voltage off and
back on once and check if the
fault still occurs.
Replace the control boards of
the affected indoor and outdoor
units if the fault does still occur.
Check control cables.
Check control cables and rectify
the cause of the interference
noise.
These remedial measures apply
to "EA", "Eb" and "EC".
Eb
Wiring fault on the control
cables between the indoor
units and outdoor unit (phases
reversed, no contact)
A test circuit will automatically
set the number of indoor units
connected. If the control cables
continue not to work for longer
than 4 mins after the power
supply is applied, fault message
"Eb" is issued.
Poor or detached contacts on
the connections of the control
cables, or wiring fault
Incorrectly dimensioned control
cables.
Interference noise in the control
cables.
Voltage board on the outdoor
unit defective
EC
Time limit for start of operation
exceeded
The system has still not
been properly initialised over
four mins after the start of
operation. The fault message
"EC" is issued.
Poor or detached contacts on
the connections of the control
cables, or wiring fault.
Incorrectly dimensioned control
cables.
Interference noise in the control
cables.
REMKO SYSTEM MONITOR
FOR REMKO SUPERTEC INVERTER
24