1. Look for a problem code on the ground source heating pump control panel and write it down. Check whether the heat pump has a software restart or reset function. If it does, restart the system. If the equipment does not have a reset function or a software restart does not solve the issue, switch off the device from the main switch and wait for 5 minutes before switching it on again.
2. If the fault reoccurs after start-up, then it is probably a fault that requires an acknowledgement of the over-temperature protector, for example.
3. Be sure to check both the power supply fuses of the ground source heat pump at the property’s power room as well as the fuses of the actual ground source heat pump.
4. If the fault persists, contact maintenance. When contacting maintenance, be sure to report the problem code and the measures you have already taken with the heat pump.

1. Check if the equipment is in failure (point A).
2. Check the heating curve settings and the current setpoint.
3. Check whether the pump has gone into summer stop mode or lowered mode.
4. Check that the room thermostats are open and set correctly.
5. Clean the waste collector on the heating side. See cleaning instructions in this video.

1. Check the heating curve settings and the current set point.
2. Check if the equipment is in failure (point A)
3. Check that the 3-way valve is working properly. In the heating mode, one branch should point towards position B.
4. If you have a cooling coil unit, see section G

1. Check whether the accumulator is in failure.
2. Check whether domestic hot water production is on. (See the manual for your equipment – you can find the manuals in our data bank)
3. Check the domestic water production set point. (See the manual for your equipment – you can find the manuals in our data bank)
4. Has there been an increase in water consumption? Temporary increases in consumption may cause domestic hot water to cool down. Check the hot water temperature and wait until sufficient amount of hot water corresponding to the set point has been produced.

Check the position and setting of the thermostat. The cooling of a single room means that the room thermostat has been set incorrectly or the thermostat is defective.

Overpressure alert:

• Check that the heating circuit’s thermostats are open.
• Check the heating circuit pressure from the pressure gauge
• Check if the waste collector on the heating side is blocked; see the instructions in the video.

Underpressure alert:

• Check the collector pressure from the pressure gauge.
• Check that the collector shut-off valves are open.
• Check if the collector’s waste collector is blocked; see the instructions in the video.

Alarm contact active / Overheat protector alert:

• Acknowledge the overheat protector of the flow-through resistor. Note! Remove the red resistor cap in order to acknowledge the overheat protector. The instructions can be found in this video

Sensor temperature alert:

• Check the controller display to see whether the sensor reading could be correct.
• If the sensor shows readings that are significantly incorrect (at least tens of degrees), the sensor is likely to be broken. Contact maintenance and report the problem code shown on the equipment display.

• When commissioning an Aries heat pump, contacting Gebwell is not necessary if there are no problems or nothing to ask. A technician can normally carry out commissioning independently. As a rule, a heat pump is commissioned using the application, but if this is not possible for some reason, it is possible to commission the heat pump with the heat pump controller. The installation, operation and maintenance manual contains plenty of information on the commissioning and operation of your heat pump. If you have any problems or questions regarding commissioning, we are happy to help. However, please first check whether the answer to your question can be found in the relevant installation manual in our Material bank.
• In case you are, for example, about to commission your first Aries heat pump in the near future, or you are unsure about the upcoming commissioning, we strongly recommend booking a time for a commissioning assistance session on our website. We will book you a time with our technical expert and you can go through the commissioning procedure together.
• If an alert occurs when commissioning a heat pump, please check the instructions on the alert in question.

The person who wants to become an additional user

• Download the Gebwell Smart application for your device from the Google Play or App Store application store.
• On the initial screen of the application, select “Register”.
• Enter the email address you want to use to register in the application.
• You will receive a registration link by email.
• In the link, select “Additional user” as the role.
• Fill in the required information.
• Select “Create account”.

 Main user

• Open the application normally.
• In the side menu, select “Manage account”.
• Add the email address of the person who wants to become an additional user.

After this, the new additional user can monitor and modify the operation of the heat pump just like the main user. Only the main user can add additional users.

• Remote access to your heat pump has been lost. In this case, proceed as follows:
• De-energise the heat pump by unplugging its power cord from the socket for a couple of minutes. Instead of unplugging the power cord, you can de-energise the heat pump by switching its fuses off for a couple of minutes. After the restart, the remote access should be restored within a couple of minutes.
• If the remote access is not restored despite the actions described above, send a contact request to our technical support team.

Please note that the heat pump normally works even if the remote access is temporarily lost.

• Remote access to your heat pump has been lost. In this case, proceed as follows:
• De-energise the heat pump by unplugging its power cord from the socket for a couple of minutes. Instead of unplugging the power cord, you can de-energise the heat pump by switching its fuses off for a couple of minutes. After the restart, the remote access should be restored within a couple of minutes.
• If the remote access is not restored despite the actions described above, send a contact request to our technical support team.

Please note that the heat pump normally works even if the remote access is temporarily lost.

• Make sure that the room temperature sensor has been installed in the residential premises.
  • If the room temperature sensor has been installed in the residential premises: Contact the company that installed the room temperature sensor. The technician must enable the room temperature sensor with the heat pump controller and then start the device twice. This procedure is instructed in the Aries installation manual that can be found in the Material bank.
  • If the room temperature sensor has not been installed in the residential premises: Contact the company that installed the heat pump for the installation of the room temperature sensor. The room temperature sensor is supplied with the heat pump.

Contact the company that installed the heat pump. The technician must enable the heating circuits with the heat pump controller and then start the device twice. This procedure is instructed in the Aries installation manual that can be found in the Material bank.

The setpoint for domestic hot water is normally 48–52 °C, the comfort setpoint is 54 °C. Please note that when the setpoint is over 55 °C, the heat pump uses an electric heater for the final heating. Please also note that the setpoint for domestic hot water is the target temperature at the bottom section of the accumulator. In practice, domestic hot water is 5–8 °C hotter because it is taken from the top section of the accumulator.

The controller’s software has only two setpoints: Eco and Comfort. When the domestic hot water Comfort and Normal setpoints are changed from the application, it is written in the controller as the Comfort setpoint, and the Eco setpoint is written in the controller as the Eco setpoint. When the Comfort or Normal setpoint is selected from the application, the domestic hot water mode remains in the Comfort setting but the setpoint changes. When the Eco setpoint is selected, the domestic hot water mode changes to the Eco mode.

Check the heat pump for active alerts.

If yes, check the instructions on the alert in question and acknowledge the alert.

If not:

• • • Check that the heat pump is on.
    • Check the fuses both at the heat pump and in the distribution board.
    • Check the domestic hot water temperature setpoint. The setpoint for domestic hot water is normally 48–52 °C, the comfort setpoint is 54 °C. Please note that when the setpoint is over 55 °C, the heat pump uses an electric heater for the final heating. Please also note that the setpoint for domestic hot water is the target temperature at the bottom section of the accumulator. In practice, domestic hot water is 5–8 °C hotter because it is taken from the top section of the accumulator.

If the water is still lukewarm/cold after the checks described above, your primary point of contact should be the company that installed the heat pump.

Check the heat pump for active alerts (primarily via the Gebwell Smart application).

If yes, check the instructions on the alert in question and acknowledge the alert.

If not, check the following:

• • • Is the setpoint for domestic hot water over 55 °C? When the setpoint is over 55 °C, the heat pump uses electric heater for the final heating.
    • Is the heat pump’s room setpoint higher than the actual desired room temperature?

The room thermostats should be kept in the open position (highest possible value on the scale) and then control the desired room temperature via the heat pump application. The heat pump controls the temperature of the hot water required for the heating circuit. If you want to control room temperatures on a room-by-room basis, at least one room thermostat should always be kept fully open. Wet rooms are often suitable for this purpose, among others. For example, if you want to keep the bedrooms cooler than other rooms in the winter, keep the thermostats in the open position in other rooms and use the thermostats in the desired rooms to decrease their temperature slightly.

Underfloor heating and radiator thermostats can have a negative impact on energy consumption. They reduce the flow rate in the heating system, and the heat pump compensates for this by raising the temperature of the network. This affects the device’s operation by causing more electrical energy to be consumed. Thermostats are only intended for adjustments due to “free heat” (from the sun, people, fireplaces, etc.).

If the energy consumption is still high after the checks described above, please contact the company that installed the heat pump.

The most common alerts given by the Aries heat pump: https://gebwell.fi/en/aries-heat-pump-alerts/

• Check the heat pump for alerts. If yes, acknowledge the alert.
• If there are no alerts or the alert cannot be acknowledged, de-energise the heat pump for a couple of minutes by unplugging its power cord from the socket or switching its fuses off.
• If the heat pump does not start after de-energising, check that the heat pump fuses under the front panel are also on.

1. Check whether the remote control has batteries that work.
2. Check that power has been turned on for the coil unit at the main switch.
3. Check that the fuses are OK.

• Check from the device display whether the ground source heat pump receives a cooling request.
• Check that the fan filters are clean (open the coil unit housing to check this). (See the equipment manual for more information – you can find the manuals in our data bank)
• Check for any obstructions in the airflow of the unit.
• Check that the coil unit fan is running