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Our EvoHeat’s tech support pages contain extensive information on installation and operation of your EvoHeat unit. For further technical support please contact 1300 859 933.

Helpful videos, tips and technical information on EvoHeat Fusion heat pumps

Controller Videos

Note: For a step by step walkthrough, ensure you view the user manual. Click here to download your EvoHeat manual.

Start-up & Shutdown

Switching Modes

Setting the Target Temperature

System Time Settings

Setting a Timer

Cancelling a Timer

One-click Silent Mode

Setting a Silent Timer

Checking Faults

EvoHeat Wifi App Setup

The EvoHeat wi-fi app is an additional upgrade option on the Fusion-i series.  If you have upgraded to include the wi-fi option please refer to the app manual provided or follow the setup video instructions below.

Aqua Temp Wi-Fi App


Trouble Shooting & Error Codes

My unit isn’t working

  • Is the screen of control panel lit? If not, make sure the electrical wires and cables are correctly connected and the power is on. Ensure any circuit breaker devices are set to the ON position and press the ON button on your controller. Check your controller cable is plugged in and is not damaged. If the unit has been shut off or the power has been interrupted the heater will not restart for a 5-minute period to protect the compressor. Wait 5 minutes before attempting a restart.
  • Three Phase units – If you are not getting any display on the controller make sure that the phase relay in the heaters electrical box is showing both lights (Green and orange). If both lights aren’t lit change the phases around until they are. The unit should now be functional.
  • Is there sufficient water flow? If the screen displays a water flow related error check the water flow. Is the water pump in operation and the system free of debris that may cause a blockage? Disconnect pool cleaners to ensure proper water flow. Check and clear any skimmer boxes.
  • Is the current pool/spa water temperature higher than the set temperature on the controller? If so the unit will not operate until the pool/spa water temperature falls below the set temperature on the controller.
  • Check the controller for error messages and refer to the error code table.

My unit is running but not heating

  • Is the unit in “Heating” mode?
  • Is the air discharged from the front of the fan noticeably cooler than the ambient temperature? If not, check to see if the WATER OUT temp is higher than the WATER IN temp. Check also the INLET WATER TEMP is lower than the HEAT TEMP set point.
  • Ensure sufficient fresh airflow around the unit as per installation instructions. Make sure cold air discharged does not recycle back through the heater. Check the condenser fins. If they are dirty or blocked use a low flow garden hose only (pressurised water may cause damage to the heater).
  • The unit will periodically defrost when the ambient air temperature is lower than 8 degrees C.

My heater is running continuously

  • Check the set temperature is at your desired level and that the pool water temperature is at or below this set point.
  • Possible electrical component failure – contact EVOHEAT on 1300 859 933

Water appearing around unit base

  • Condensation is a normal by product of running a pool heat pump.
  • Possible water leak. Check the discharge for the presence of chlorine. If the water has no chlorine then it is condensation and is normal. Another method of checking is to turn the heater off and run the water pump continuously for a period of 2-4 hours. If the water dries out then it was condensation. If there is a continuous leak contact EvoHeat for service on 1300 859 933.

Error Codes

Electronic Control Fault Table

Protect/Fault Fault Display Reason Elimination Methods
Inlet Temp. Sensor Fault P01 The temp. Sensor is broken or short circuit Check or change the temp. sensor
Outlet Temp. Sensor Fault P02 The temp. Sensor is broken or short circuit Check or change the temp. sensor
Ambient Temp. Sensor Fault P04 The temp. Sensor is broken or short circuit Check or change the temp. sensor
Coil1 Temp. Sensor Fault P05 The temp. Sensor is broken or short circuit Check or change the temp. sensor
Suction Temp. Sensor Fault P07 The temp. Sensor is broken or short circuit Check or change the temp. sensor
Discharge Temp. Sensor Fault P081 The temp. Sensor is broken or short circuit Check or change the temp. sensor
High Pressure Prot. E01 Sudden drop in water flow/poor water flow/ Failed High pressure switch Turn heater on and off at power source (first ensure good water flow). Check the pressure switch (Technician required)
Low Pressure Prot. E02 Low pressure1 protection Check the pressure switch and cold circuit
Flow Switch Prot. E03 No water/little water in water system Check the pipe water flow and water pump
Anti-freezing Prot. E07 Water flow is not enough Check the pipe water flow and whether water system is jammed or not
Primary Anti-freezing Prot. E19 The ambient temp. Is low
Secondary Anti-freezing Prot. E29 The ambient temp. Is low
Inlet and outlet temp. too big E06 Water flow is not enough and low differential pressure Check the pipe water flow and whether water system is jammed or not
Low temperature protection Non The environment temp. is low
Comp. Overcurrent Prot. E051 The compressor is overload Check whether the system of the compressor running normally
Exhaust Air over Temp Prot. P082 The compressor is overload Check whether the system of the compressor running normally
Communication Fault E08 Communication failure between wire controller and mainboard Check the wire connection between remote wire controller and main board
Antifreeze Temp. Sensor Fault P09 Antifreeze temp sensor is broken or short circuited Check and replace this temp sensor
Waterway Anti-freezing Prot. E05 Water temp. or ambient temp. is too low
EC fan feedback Fault F051 There is something wrong with fan motor and fan motor stops running Check whether fan motor is broken or locked or not
Pressure sensor Fault PP The pressure Sensor is broken Check or change the pressure sensor or pressure
Fan Motor1 Fault F031 1. Motor is in locked-rotor state 1. Change a new fan motor
2. The wire connection between DC-fan motor module and fan motor is in bad contact 2. Check the wire connection and make sure they are in good contact
Low AT Protection TP Ambient temp is too low
Fan Motor2 Fault F032 1. Motor is in locked-rotor state 1. Change a new fan motor
2. The wire connection between DC-fan motor module and fan motor is in bad contact 2. Check the wire connection and make sure they are in good contact.
Communication Fault (speed control module) E081 Speed control module and main board communication fail Check the communication connection
Coil2 Temp. Sensor Fault P15 The temp. sensor is broken or short circuit Check or change the temp. sensor

Frequency Conversion Board Fault Table

Drv1 MOP alarm F01 MOP drive alarm Recovery after the 150s
Inverter offline F02 Frequency conversion board and main board communication failure Check the communication connection
IPM protection F03 IPM modular protection Recovery after the 150s
Comp. Driver Failure F04 Lack of phase, step or drive hardware damage Check the measuring voltage check frequency conversion board hardware
DC Fan Fault F05 Motor current feedback open circuit or short circuit Check whether current return wires connected motor
IPM Overcurrent F06 IPM Input current is large Check and adjust the current measurement
Inv. DC Overvoltage F07 DC bus voltage>Dc bus over-voltage protection value Check the input voltage measurement
Inv. DC Lessvoltage F08 DC bus voltage Check the input voltage measurement
Inv. Input Lessvolt. F09 The input voltage is low, causing the input current to be high Check the input voltage measurement
Inv. Input Overvolt F10 The input voltage is too high, more than outage protection current RMS Check the input voltage measurement

E03 Error Code

The E03 error is not an issue pertaining to the heat pump itself, and is usually a rather simple fix. This error means that there is little or no water flow getting to the unit and is just a safety precaution for your heat pump.

If the heat pump is off and displaying an E03 error, this is normal and when the system is turned on and water flow resumes the error will disappear.

Things that can cause an E03 error include:

  • The water pump not being on
  • Valves not being in place correctly
  • Blockages due to debris in the skimmerbox, pump or filter

What you can do to try and clear this error yourself:

  • Make sure the water pump is on
  • If there is a bypass installed, see if too much water is being bypassed
  • Ensure all valves are in place correctly
  • Check for blockages in the skimmerbox, pump, filter or the provision for heating suction point.

Some other things to consider that may help find the cause of the error:

  • See if the water pump is making any scratchy or grinding noises
  • Is there any air in the water pump viewing window?
  • When was your last backwash completed? (If the heater is connected in-line with the filtration system)

If after checking and trying all suggestions and you are still getting an E03 error, call EvoHeat’s technical support on 1300 859 933 for assistance.


Do I need to get my unit serviced?

It is recommended that you get your EvoHeat unit serviced once a year by your local certified air conditioning or refrigeration technician. If your unit is located in a coastal area, more frequent maintenance may be necessary. During the service, they will check the operational pressures of the refrigeration system and give the unit and fins a good clean to ensure maximum performance.

Do we have recommended service agents? EvoHeat have a large database of recommended service agents. Please contact EvoHeat on 1300 859 933 for your local service agent details. Should I check my unit regularly?

We recommend you check your unit regularly to avoid potential issues and damage to your heat pump.

What should I be checking regularly?

Check the water inlet/outlets often for leaks. You should avoid the condition of no water or air entering into the system, as this will influence unit’s performance and reliability. You should clear the pool/spa filter regularly to avoid damage to the unit as a result of the dirty of clogged filter. The area around the unit should be dry, clean and well ventilated. Make sure there is nothing blocking the airflow of the heater e.g. Leaf litter. Discharge all water in the water pump and water system, so that freezing of the water in the pump or water system does not occur. You should discharge the water at the bottom of water pump if the unit will not be used for an extended period. You should check the unit thoroughly and fill the system with water fully before using it for the first time after a period of time. Check the power supply and cable connection often, should the unit begin to operate abnormally, switch it off and contact the qualified technician

Energy Saving Tips

If your pool water is allowed to cool significantly, it may take several days to return to the desired swimming temperature. For weekend use, it is more economical to maintain the pool water temperature at or near your desired swimming temperature. If you do not plan to use your pool for a prolonged period, then you might choose to turn the heat pump completely off or decrease the temperature setting of the control several degrees to minimize energy consumption.

  • Use an accurate pool thermometer. A difference of 2ºC, between 26ºC and 28ºC, will significantly increase energy consumption.
  • Carefully monitor the water temperature of your pool in the summer time. You can reduce heat pump usage due to warmer air temperatures.
  • When the pool is not used for long periods, turn off the heat pump.
  • Where possible, shelter the pool from prevailing winds with well-trimmed hedges or other landscaping, cabanas, or fencing.
  • Always use a high-quality pool cover when practical. Besides providing a valuable water saving feature, a pool cover will dramatically reduce heat loss and reduce your pool heating running costs by up to 70%.

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