Troubleshooting - Norsup 7021075 Mode D'emploi

7. Troubleshooting

7.1 Error code display on LED wire controller
Error Code Malfunction
High pressure
EE 01
failure
EE 02 Low pressure failure
EE 03 Water flow failure
Over heating
protection for water
EE 04
temperature (T2) in
heating mode
Exhaust
EE 05 temperature (T6)
too high protection
Controller
EE 06
malfunction
Compressor current
EE 07
protection
Reason
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. 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. Water flow switch is in bad
connection
2. Water flow switch
damaged
3. No/ Insufficient water flow.
1. Low water flow
2. Water flow switch is stuck
and the water supply is cut off
3. T2 sensor is abnormal
1. Lack of gas
2. Low water flow
3. Piping system has
blocked
4. Exhaust temp. Sensor failure
1. Wire connection is not good
or damaged signal wire
2. Controller failure
1. The compressor current is
too large momentary
2. Wrong connection
compressor phase sequence
25
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
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
1. Check the wiring for water flow switch
2. Change the water flow switch
is
3. Check the
waterway system
1. Check the water way system
2. Check the water pump or water flow
switch
3. Check T2 sensor or change another one
1. Check the high pressure gauge, if too
low, fill with some gas
2. Check the waterway system and water
been pump
3. Check the piping system if there was
any block
4. Change a new exhaust temp. sensor
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
1. Check the compressor
2. Check the waterway system
for 3. Check if the power in the normal range
4. Check the phase sequence connection
Solution
water pump or the