Glow-worm Clearly Heat Pumps - Standalone Module System - Manual (Page 34)

0020096321_00 - 07/10 - Glow-worm
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MAINTENANCE
MAINTENANCE
13 Trouble-shooting
13.1 Fault diagnosis
The following checks should be performed before proceeding
onto specifi c diagnostics:
- Make sure that the electricity supply has not been interrupted
and that the appliance is connected correctly.
- Ensure that the isolating valves are open.
- Check that all external controls are connected correctly.
13.2 Fault codes
i The faults described in this chapter should be
carried out by a qualifi ed engineer and if needed by
the After Sales Service.
13.2.1 System fault codes
Fault
codes
Description Cause Solution
002
Failure in Ebus communication between with the
heat pump
The heat pump is not connected to
the control unit.
The heat pump is off.
Make sure the heat pump is connected to the
control unit. Ensure that there is no interruption
to the electricity network and that the heat
pump is properly connected and turned on.
003
Failure in Ebus communication between with the
hydraulic module
The hydraulic module is not
connected to the control unit.
The hydraulic module is off.
Make sure that the hydraulic module is
connected to the control unit. Ensure that there
is no interruption to the electricity network and
that the hydraulic module is properly connected
and turned on.
010
Heating circuit fl ow temperature sensor failure
(open circuit)
The sensor is defective or not
properly connected to the control unit
management or hydraulic module.
Check the sensor’s connections.
Verify that the position and the operation of the
sensor are correct.
Check the sensor’s resistance.
011
Heating circuit fl ow temperature sensor failure
(short circuit)
The sensor is shorted.
012
Heating circuit fl ow temperature sensor failure low
temperature (open circuit) The sensor is defective or not properly
connected to the control unit. Check the sensor’s connections.
Verify that the position and the operation of the
sensor are correct.
Check the sensor’s resistance.
013
Heating circuit fl ow temperature sensor failure low
temperature (short circuit)
The sensor is shorted.
014
Domestic water tank temperature sensor failure
(open circuit) The sensor is defective or not properly
connected to the control unit. Check the sensor’s connections.
Verify that the position and the operation of the
sensor are correct.
Check the sensor’s resistance.
015
Domestic water tank temperature sensor failure
(short circuit)
The sensor is shorted.
021 Pressure too low <0.5 bar
There is a leak in the heating circuit.
The venting was not carried out
correctly. Check that there are no leaks.
Drain the heating circuit. Remove air.
Fill the installation.
030
Failure in communication with the zone 1 wireless
room thermostat.
The room thermostat is too far from
the control unit.
There is a problem with the batteries
in room thermostat.
Check the RF signal quality via the Climapro2
RF installer menu.
Check the location of the thermostat.
Check that the thermostat’s batteries are
installed in their compartment.
Make sure the battery polarity is not reversed.
Make sure the batteries are not dead.
If so, replace them with new batteries
031
Failure in communication with the zone 2 wireless
room thermostat.
032
Failure in communication with the zone 3 wireless
room thermostat.
033
Failure in communication with the zone 4 wireless
room thermostat.
034
Failure in communication with the zone 5 wireless
room thermostat.
035
Failure in communication with the zone 6 wireless
room thermostat.
036
Failure in communication with the wireless
outdoor sensor The wireless outdoor sensor is too far
from the control unit.
Check the location of the outdoor sensor.
Check that the sensor’s power supply is
correctly provided by a photovoltaic cell.