AES Hydro-Pro Inverter 07, User And Service Manual

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7. Troubleshooting
7.1 Error code display on LED wire controller
Error Code Malfunction Reason Solution
EE 01
High pressure
failure
1. High pressure switch in bad
connection or failure
2. Ambient temperature is too high
3. Water temperature is too high
4. Water flow is too low
5. Fan motor speed is abnormal or
fan motor has damaged
1. Check the wiring for high pressure
switch or change a new one
2.Check the water flow or water pump
3. Check the fan motor
4. Check and repair the piping system
EE 02 Low pressure failure
1. Low pressure switch in bad
connection or failure
1. EEV has blocked or pipe system is
jammed
2. Motor speed is abnormal or
motor has damaged
3. Gas leakage
1. Check the wiring for low pressure
switch or change a new one
2. Check the EEV and piping system
Check the motor
3. Through the high pressure gauge to
check the pressure value
EE 03 Water flow failure
1. Water flow switch is in bad
connection
2. Water flow switch is damaged
3. No/ Insufficient water flow.
1. Check the wiring for water flow
switch
2. Change the water flow switch
3. Check the water pump or the
waterway system
EE 04
Over heating
protection for water
temperature (T2) in
heating mode
1. Low water flow
2. Water flow switch is stuck and
the water supply is cut off
3. T2 sensor is abnormal
1. Check the water way system
2. Check the water pump or water
flow switch
3. Check T2 sensor or change another
one
EE 05
Exhaust
temperature (T6)
too high protection
1. Lack of gas
2. Low water flow
3. Piping system has been blocked
4. Exhaust temp. Sensor failure
1. Check the high pressure gauge, if
too low, fill with some gas
2. Check the waterway system and
water pump
3. Check the piping system if there
was any block
4. Change a new exhaust temp.
sensor
EE 06
Controller
malfunction
1. Wire connection is not good or
damaged signal wire
2. Controller failure
1. Check and re-connect the signal
wire
2. Change a new signal wire
3. Turn off electricity supply and
restart machine
4. Change a new controller
EE 07
Compressor current
protection
1. The compressor current is too
large momentary
2. Wrong connection for compressor 1. Check the compressor
2. Check the waterway system
3. Check if the power in the normal