evoheat Fusion-i 12, Installation & Operation Manual, Page: 18 / 29

17 EvoHeat Fusion-i Series Manual
7. Troubleshooting
EvoHeat have developed a YouTube Channel where you will find useful videos - from setting up your
timers to setting up the EvoHeat app. View it to see resolutions to some of our most asked, yet easily
solved questions: https://www.youtube.com/channel/UCfYiOxHuybBuC1NZcqUnrcA/videos
7.1 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
2. The wire connection between DC-fan motor
module and fan motor is in bad contact
1. Change a new fan motor
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
2. The wire connection between DC-fan motor
module and fan motor is in bad contact
1. Change a new fan motor
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