Service and Maintenance
4
8
en
[Service] Menu
The service menu is password protected to prevent accidental changes being
made to the operation settings, by unauthorised/unqualified persons.
Troubleshooting
The following table is to be used as a guide to possible problems. It is not exhaustive and all problems should be investigated by the installer or another competent person.
Users should not attempt to repair the system themselves.
At no time should the system be operating with the safety devices by-passed or plugged.
Fault symptom
Possible cause
Solution
Heating system does not get up
to set temperature.
Prohibit, schedule or holiday mode selected
Check settings and change as appropriate.
Incorrectly sized floor heatings
Contact installer.
The room in which the temperature sensor is located is at
a different temperature to the rest of the room.
Reposition the temperature sensor to a more suitable room.
Schedule function inhibits the
system from operating but the
outdoor unit operates.
Freeze stat. function is active.
Normal operation no action necessary.
Pump runs without reason for
short time.
Pump jam prevention mechanism to inhibit the build up of
scale.
Normal operation no action necessary.
Mechanical noise heard coming
from indoor unit
Heaters switching on/off
Normal operation no action necessary.
Noisy pipework
Air trapped in the system
Try bleeding radiators (if present) If the symptoms persist contact installer.
Loose pipework
Contact installer.
Water discharges from one of the
relief valves
The system has overheated or overpressurised
Switch off power to the heat pump and booster heater then contact in
-
staller.
Small amounts of water drip from
one of the relief valves.
Dirt may be preventing a tight seal in the valve
Twist the valve cap in the direction indicted until a click is heard. This will
release a small amount of water flushing dirt from the valve. Be very care-
ful the water released will be hot. Should the valve continue to drip contact
installer as the rubber seal may be damaged and need replacing.
An error code appears in the
main remote controller display.
The indoor or outdoor unit is reporting an abnormal condi
-
tion
Make a note of the error code number and contact installer.
<Power failure>
All setting will be saved for 1 week with no power, after 1 week Date/Time ONLY will be saved.
<Draining the hydrobox>
WARNING: DRAINED WATER MAY BE VERY HOT
1. Before attempting to drain the hydrobox islolate from the electrical supply to prevent booster heater burning out.
2. Isolate hydrobox from primary water circuit and drain water from hydrobox. Use a suitable heat resistant hose to assist in these operations.
3. Drain any remaining water from booster heater using fitted drain cock and hose to safely drain the unit.
4. After the hydrobox is drained, water remains in the following component parts. Drain water completely by checking the inside of the parts.
• Strainer (Remove the strainer cover.)
• Pressure relief valve (Operate the valve.)
Serial number
5
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The serial number is indicated on the SPEC NAME PLATE.
Year of manufacture (western calendar) : 2018 8, 2019 9
Month of manufacture: A (1), B (2), C (3), D (4), E (5), F (6), G (7), H (8), J (9), K (10), L (11), M (12)
Sequential number for each unit: 00001–99999
