FAQs
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How to set up monitoring for my Fronius Wattpilot EV charger?
The Fronius Solar.wattpilot app can be used to start up, configure, operate, visualise and update the Wattpilot. The app is available for Android™ and iOS®.
Download The Fronius Solar.wattpilot app is available on the following platforms.
You can access the Wattpilot via the app as follows:
Launching the app
- Open the Fronius Solar.wattpilot app on the end device and follow the Setup wizard.
- Read and accept the terms of use
- Click on "Connect"
NOTE: Access for the Fronius Solar.wattpilot app must be allowed for end devices with an iOS operating system.
iOS settings > Privacy > Local network > Fronius Solar.wattpilot > Allow access to local networkSetting up a hot spot
The Wattpilot permanently opens a hot spot
- Scan the QR code on the reset card or connecdt the end device to the WLAN hot spot. The passowrd is located on the reset card of the Wattpilot.
- Follow the further instructions in the app.
NOTE: The selected WLAN of the Wattpilot must remain connected despite the absence of an Internet connection for end devices with an Android operating system.
Setting up the WLAN
- Select WLAN and enter the password
- Follow the further instuctions in the app.
NOTE: It can take up to 1 minute to establish the connection! If the signal strength is low, a WLAN repeater must be installed, for example.
Adding a Wattpilot
New or connected Wattpilot devices can be added in the Fronius Solar.wattpilot app.
- Click on the "+" symbol
- Click on the "Add" for the connected Wattpilot
- Follow the further instructions in the app
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What are the Status Error Codes and Remedy for my Fronius Wattpilot EV Charger?
Status codes and remedy on Fronius Wattpilot EV Charger
Due to phase, voltage and switching function checks of the Fronius Wattpilot, a charging operation may be rejected.
The status codes are displayed via the LED status indicator (see LED status indicator on page 17) directly on the Wattpilot and in the app under "Status".
Status Codes
Issue Cause Remedy 1
Fault current detected (LEDs light up pink, the LEDs at the top flash red)
The residual current device has detected an error. The charging equipment in the vehicle may be defective. Have the charging equipment checked by a specialist. Disconnect and reconnect the charging cable. 3
At least one phase of the power supply is missing (the LEDs light up blue, the LEDs at the top flash red)
The device is only being supplied with 2 phases. Make sure that phase 2 and phase 3 are connected correctly. Option: a supply via phase 1 only is possible. 8
Grounding fault detected (the LEDs light up green and yellow, the LEDs at the top flash red)
Grounding fault detected. Check that the connection is properly grounded. 10
Relay fault detected
The relay has not switched. Disconnect the power supply to the device for 5 seconds. 11
Backup power mode detected
53 Hz mains current detected. Observe the instructions in the Operating Instructions. 12
Type 2 plug locking failed
The plug locking system does not work. Remove possible foreign parts in the plug housing. Type 2 plug not fully inserted. Insert the type 2 plug into the device as far as it will go until you hear a click. 13
Type 2 plug unlocking failed
The electric vehicle is plugged in. Unplug the electric vehicle. "Always locked" under "Cable release" in the Solar.wattpilot app is activated. Deactivate "Always locked" under "Cable release" in the Solar.wattpilot app. Release jammed. Insert the type 2 plug into the device as far as it will go until you hear a click. If the problem has still not been fixed: Press the push button on the device. If the problem has still not been fixed: Activate and save "Always locked" in the Solar.wattpilot app, then activate and save "Standard mode" under "Cable release". 100
Internal communication error (all LEDs flash red)
Device is not sending data. Disconnect and reconnect device. Perform a firmware update. Return device. 101
Temperature too high (the LEDs light up yellow, the LEDs at the top flash red)
Continuous load. Disconnect device and allow to cool down. Incorrectly installed cables. Disconnect device and allow to cool down. 105
No data available on the flexible electricity tariff (first or second LED - Eco Mode or Next Trip Mode - flashes red)
Flexible electricity tariff cannot be called up. Check WLAN and Internet connection. Wait until the server is available again. 109
No connection to the inverter (first or second LED - Eco Mode or Next Trip Mode - flashes red)
The connection to the inverter cannot be established. Check the network settings. Check the settings of the inverter. 114
For Eco Mode, PV surplus or flexible electricity tariff must be activated (Eco Mode LED flashes orange)
Eco Mode is selected and the "Use PV surplus" and "Use Lumina Strom / aWattar" settings are disabled. Activate the setting "Use PV surplus" and/or "Use Lumina Strom / aWattar". Change the mode. "Use Lumina Strom / aWattar" is enabled and there is no data connection to the Internet. Cached price data is still available. Check the network settings. 115
The set amount of energy cannot be reached in the specified time (second LED - Next Trip Mode - flashes orange)
The specified time is not sufficient for the desired amount of energy. Extend the specified time for charging. Reduce the desired amount of energy. 116
Update of flexible electricity tariffs failed (first or second LED - Eco Mode or Next Trip Mode - flashes orange)
The connection cannot be established. Check the network settings. The charging operation cannot be started, but all LEDs show the ready colour (default blue).
The vehicle is not being detected. Check vehicle cable and fit of charging plugs No LEDs light up after plugging in.
No power on the junction box. Check the overload fuse of the connection. Miniature fuse defective. Check the miniature fuse on the rear of the device. If it has melted, the power connection may not be installed properly. Check the polarity of the power connection before starting another test with a new miniature fuse. Use original miniature fuses only. The brightness of the LEDs has been set to 0. Increase the brightness of the LEDs in the Fronius Solar.wattpilot app. "Switch off LEDs after 10 s in standby" has been enabled. Deactivate "Switch off LEDs after 10 s in standby" or press the push button on the Wattpilot. -
What are the benefits of the Sanden Eco® Plus heat pump hot water system?
Benefits include:
You can save up to 80% of your hot water energy costs when compared with a traditional electric hot water system! The Sanden Eco® Plus Hot Water Heat Pump uses only 20% of the energy required by older-style, electric element hot water storage systems.
Not only does a Sanden Eco® Plus heat pump hot water system help save on energy costs, it also delivers:
(a) Heat Pump Unit Benefits:
- Innovative technology; up to 50% faster heat recovery than currently available Hot Water Heat Pumps.
- Industry leading quality & performance; the Sanden Eco Plus gives you the highest level of STC credits of any currently available heat pump hot water system.
- Class leading warranties; backed by Sanden’s 35 years of operation in Australia.
(b) Stainless Steel Storage Tank Benefits:
- High quality; extra long life duplex stainless steel cylinder.
- Fully insulated; for extremely low heat loss.
- Safety, pressure and temperature relief valves.
- Mains pressure rated.
- Innovative technology; up to 50% faster heat recovery than currently available Hot Water Heat Pumps.
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Is water quality an important consideration for the Sanden Eco® Plus heat pump hot water system?
Yes, importantly no warranty applies to the heat pump unit and the storage tank, where the chloride level exceeds 200 mg/litre and the pH is less than 6.0. If in doubt, seek water quality information from your local council or water supplier.
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How does a heat pump hot water (HPHW) system work?
The Sanden Eco® Plus heat pump hot water (HPHW) system operates like a refrigerator in reverse. It contains a fan that forces air through an evaporator that contains a refrigerant. The heat in the ambient air passes through the evaporator (note: even air below 0 º C contains heat energy) and is absorbed by a natural refrigerant, R744 (aka CO2), which is ozone friendly and does not significantly contribute to global warming compared with most other refrigerants (older style refrigerants have thousands of times more global warming impact for the same amount of gas, when compared with CO2).
The warm gaseous refrigerant is circulated in the system via a compressor. As it passes through the compressor, its pressure rises, as does its temperature. This hot refrigerant then passes through a heat exchanger to heat the water, which is finally pumped to the storage tank.
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What do I do if the Sanden Eco® Plus heat pump hot water system has a problem?
Check our comprehensive Sanden not working checklist here if you think you have a problem with your Sanden Eco heat pump hot water system.
If you're still unsure after going through this guide - please lodge a Pure Electric Service Case here
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Error Codes for Sanden Heat Pump G4 GAU-A45HPC
The HP will display an error code if it is unable to function normally.
Error codes are indicated by a red LED on the control panel. The control panel is visible via a small window at the right side of the heat pump and it can be accessed by removing the heat pump top cover (4 screws).
After a component is replaced or the inspection is completed, cycle power to the unit several times to confirm the error does not re-occur.
Below is the list of the error codes. If the corrective action does not solve the error problem, a malfunction of the PCB valve is highly likely.Error
code
Reason for the error
Corrective action
H9
HP ambient(outdoor)
temperature thermistor error
Check the thermistor connectors on the main PCB or control PCB in the heat pump unit for any disconnection, fall-off, wire breakage or short circuit.
Measure resistance of the thermistor indicated by the error code.
HC
HPwater outlet (outgoing)
temperature thermistor error
J3
HP discharge temperature
thermistor error
J5
HP suctiontemperature
thermistor error
J6
HP defrosttemperature
thermistor error
J8
HPwater inlet (return)
temperature thermistor error
H7
Tank temperature thermistor error
- Check the thermistor cable on the terminal block in the heat pump unit for any disconnection, fall-off, wire breakage or short circuit.
- Measure resistance of the thermistor indicated by the error code.
E6
Compressor bootingerror
- Check the compressor connector.
- Replace the main PCB or heat pump.
H6
Compressor revolution error
- Check the supply voltage.
- Measure resistance of each thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
Error
code
Reason for the error
Corrective action
Replace the PCB or heat pump.
U0
Refrigerant leakageerror
- Measure resistance of each thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
- Replace the main PCB or heat pump.
E1
Main PCB error
Replace the control PCB.
E2
L7
Control PCB error
Replace the control PCB.
F5
Communication error between main PCB to control PCB
- Check the communication connector on the main PCB and control PCB.
- Replace the main PCB or control PCB.
E8
High inlet current error
- Check the installation location.
- Check the supply voltage.
- Replace the main PCB or heat pump.
H8
Current error
Replace the main PCB.
L4
High temperature of module error
- Check the installation location.
- Remove foreign objects from the evaporator coil (e.g. fallen leaves, grass, snow).
- Check the fan motor is not flowing by dirt.
- Replace the main PCB or fan motor.
L5
High outlet current error
- Measure resistance of the discharged thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
- Replace the main PCB or heat pump.
P4
Module temperature
thermistor error
Replace the main PCB.
U2
High voltage error
Check the supply voltage.
HJ
Water circuit error
- Check the inlet water valve.
- Check for any piping bend, blockage, kink or frozen.
- Measure resistance of each thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
- Replace the main PCB or heat pump.
EC
High water outlet error
- Check the water circuit is not flowing by air, dirt or scaling.
- If the water circulation pump is not working, replace the pump.
- Measure resistance of water outlet (outgoing) thermistor.
- Replace the main PCB.
E9
Water circulation pump error
- Check the water is full in the tank.
- If the water circulation pump is not working, replace the pump.
- Check the revolution of pump by controller. If the revolution is low, replace the pump.
- Replace the main PCB.
Error
code
Reason for the error
Corrective action
E7
Fan motor locked
- Remove foreign objects around the fan motor.
- Check the fan motor connectors on the main PCB.
- Replace the main PCB.
F3
Discharged temperature error
- Measure resistance of the discharged thermistor.
- Replace the main PCB or heat pump.
Error
code
Reason for the error
Corrective action
H9
HP ambient(outdoor)
temperature thermistor error
Check the thermistor connectors on the main PCB or control PCB in the heat pump unit for any disconnection, fall-off, wire breakage or short circuit.
Measure resistance of the thermistor indicated by the error code.
HC
HPwater outlet (outgoing)
temperature thermistor error
J3
HP discharge temperature
thermistor error
J5
HP suctiontemperature
thermistor error
J6
HP defrosttemperature
thermistor error
J8
HPwater inlet (return)
temperature thermistor error
H7
Tank temperature thermistor error
- Check the thermistor cable on the terminal block in the heat pump unit for any disconnection, fall-off, wire breakage or short circuit.
- Measure resistance of the thermistor indicated by the error code.
E6
Compressor bootingerror
- Check the compressor connector.
- Replace the main PCB or heat pump.
H6
Compressor revolution error
- Check the supply voltage.
- Measure resistance of each thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
Error
code
Reason for the error
Corrective action
Replace the PCB or heat pump.
U0
Refrigerant leakageerror
- Measure resistance of each thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
- Replace the main PCB or heat pump.
E1
Main PCB error
Replace the main PCB.
E2
L7
Control PCB error
Replace the control PCB.
F5
Communication error between main PCB to control PCB
- Check the communication connector on the main PCB and control PCB.
- Replace the main PCB or control PCB.
E8
High inlet current error
- Check the installation location.
- Check the supply voltage.
- Replace the main PCB or heat pump.
H8
Current error
Replace the main PCB.
L4
High temperature of module error
- Check the installation location.
- Remove foreign objects from the evaporator coil (e.g. fallen leaves, grass, snow).
- Check the fan motor is not flowing by dirt.
- Replace the main PCB or fan motor.
L5
High outlet current error
- Measure resistance of the discharged thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
- Replace the main PCB or heat pump.
P4
Module temperature
thermistor error
Replace the main PCB.
U2
High voltage error
Check the supply voltage.
HJ
Water circuit error
- Check the inlet water valve.
- Check for any piping bend, blockage, kink or frozen.
- Measure resistance of each thermistor.
- Measure resistance of coil of expansion valve to check open or short circuit.
- Replace the main PCB or heat pump.
EC
High water outlet error
- Check the water circuit is not flowing by air, dirt or scaling.
- If the water circulation pump is not working, replace the pump.
- Measure resistance of water outlet (outgoing) thermistor.
- Replace the main PCB.
E9
Water circulation pump error
- Check the water is full in the tank.
- If the water circulation pump is not working, replace the pump.
- Check the revolution of pump by controller. If the revolution is low, replace the pump.
- Replace the main PCB.
Error
code
Reason for the error
Corrective action
E7
Fan motor locked
- Remove foreign objects around the fan motor.
- Check the fan motor connectors on the main PCB.
- Replace the main PCB.
F3
Discharged temperature error
- Measure resistance of the discharged thermistor.
- Replace the main PCB or heat pump.
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Why does the Sanden Eco® Plus use CO2 as its working gas? Isn’t CO2 a greenhouse gas and therefore harmful to the environment?
Why does the Sanden use CO2 as its working gas, what is the benefit?
- There is far less environmental impact (i.e. No ozone layer depletion and minimal global warming) than other commonly used refrigerants, should the system leak.
- There is a much higher efficiency, thereby allowing more heat to be transferred to the water, for less energy used (i.e. Excellent thermodynamic ability).
Isn't CO2 a greenhouse gas and therefor bad for the environment?
While it is true that Carbon Dioxide (CO2) is a greenhouse gas it has a Global Warming Potential (GWP) of 1. Whereas refrigerant gases in other heat pumps can have GWP of over 10,000, which means if they leak to the atmosphere they contribute 10,000 times more to global warming compared with the refrigerant gases used in a Sanden Eco Plus.
The table below shows the GWP for some common refrigerant gases (note: GWP must include a time interval over which the greenhouse gases act, in this case 100 years)
Our system utilizes less than 1 kg of R744 (CO2) as a refrigerant contained in a closed system at the factory. The installer does not need to charge the heat pump on site.
- There is far less environmental impact (i.e. No ozone layer depletion and minimal global warming) than other commonly used refrigerants, should the system leak.
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Do I need to register my Sanden Eco Plus warranty?
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What is the noise level of the Sanden Eco® Plus heat pump hot water system?
The unit is rated at 37dB (measured at one metre from the unit), which is almost silent. By comparison, a whisper is around 30dB and the sound of the inside of a Library is approximately 40dB.
