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ENGLISH
22
BREAKDOWN DIAGNOSTIcS
failure
Possible reason
Elimination
Low pressure failure
System untightness.
Check and repair untightness, and fill in.
Cooling media insufficient level.
Fill-up the missing cooling medium.
Brine pump does not work.
Check the power supply and fuse or replace
the faulty pump.
Brine low temperature.
Consult the service point.
Low pressure sensor failure.
Replace the low-pressure sensor.
High pressure failure
Heating pump does not work
Check the power supply and fuse or
replace the faulty pump.
High pressure sensor does not
work.
Replace the high-pressure sensor.
Incoercitible medium (air, ...)
in the system.
Consult the service point.
Current circuit disruption.
Check the current circuit and fuses.
Noisy operation of hydraulic part
Vibrating piping.
Fasten the piping.
Pump noisy operation while in
service.
- Air in the water circuit - remove the air.
- Bearing damage.
Incorrect water temperatures
Incorrect required value programmed Check settings in the central control.
sensor failure.
Consult the service point.
Control malfunction.
Consult the service point.
Unsatisfactory water circulation
Air in the system.
De-aerate the equipment through air-valves.
Sediments in the temperature
exchanger.
Drain and clean the water system.
Water filter is polluted (if present).
Clean the filter.
Flow sensor failure *)
Unsatisfactory water circulation.
Check the current circuit and fuses.
Air in the system.
De-aerate the equipment through air valves.
Flow sensor failure.
Check the flow sensor.
Water circulation pump failure.
Check the circulation pump.
2nd heating circuit does not work
Heating pump does not work.
Check the external heating pump.
Pump is not released.
Check the time program settings.
Control malfunction.
Consult the service point.
3-way valve failure.
Check the valve position or replace it.
*) Equipment with cooling function in the water circuit, or water/water type heat pumps.