REMKO CMF 320 Duo - Manual (Page 32)

REMKO CMF - DUO
Overview of faults and their possible causes for the indoor unit charge pump
Indicator light does not illuminate Indicator light lights up permanently Indicator light flashes
Green LED Red LED Fault Meaning Remedial measures
The pump does not run
A fuse or circuit breaker in the
installation has blown/tripped.
Replace the fuse/reset the circuit
breaker. Check whether there is a
power supply in the specified area.
The residual current device (RCD)
or fault voltage circuit breaker was
tripped.
Reset the RCD or circuit breaker.
Check whether there is a power
supply in the specified area.
The pump may be defective. Replace the pump.
The pump does not run
The pump was switched off.
Possible causes:
1. By the button .
2. External ON/OFF switch
switched off
3. Using the bus signal.
1. Switch on the pump using the
button.
2. Switch on the external ON/OFF
switch.
3. Switch on the pump using
the bus signal.
The pump was switched
off due to a fault.
Power failure.
Check whether there is a power
supply in the specified area.
Pump jammed and/or dirty. Disassemble pump and clean
The pump may be defective. Replace the pump.
The pump runs, but is
faulty.
Pump is faulty but still able to
continue running.
Try acknowledging the fault message
by briefly switching off the power
supply or by pressing the
, or
button.
The pump was set to
STOP and is faulty.
Pump is faulty but still able to
continue running (set to STOP).
The system makes
noises.
Air in the system. Bleed the system
Delivery rate is too high.
Reduce the target value and if
AUTO ADAPT or Constant pressure.
Delivery pressure.
Reduce the target value and if
AUTO
ADAPT
or Proportional pressure.
The pump makes
noises.
Supply pressure is too low.
Increase supply pressure and/or check
the gas volume in the expansion
vessel (if present).
Air in the pump
Adjust the pump setting by pressing
and holding the
button. After the
pump has been bled press the and
buttons to switch back to normal
mode.
CAUTION : The pump must never be
allowed to run dry.
32