13
If this error appears 3 times within 30 minutes, the system will lock on it, the indication LED light “Running” will
flash, and show error code “EL”, it can be only recovered by turning off the power supply.
4.6.3 Outgoing water temp. sensor failure
If the system detects this temp. sensor in short circuit or disconnected, it will judge this failure and show “E01” error
code, then stop the heat pump for protection.
4.6.4 Ambient temp. sensor failure
If the system detects this temp. sensor in short circuit or disconnected, it will judge this failure and show “E02” error
code, then stop the heat pump for protection.
4.6.5 Discharge temp. sensor failure
If the system detects this temp. sensor in short circuit or disconnected, it will judge this failure and show “E04” error
code, then stop the heat pump for protection.
4.6.6 Ambient temp. over low or over high protection
When ambient temp.
＜
8
℃
or
＞
60
℃
, the system will stop to enter protection and display E00 error code ;
When ambient temp.
≥
11
℃
or
≤
57
℃
( 3
℃
difference ), the system will restart.
4.6.7 Auto restart
This parameter can be pre-set, the system will save it always;
If the heat pump power supply is cut off at an accidence, when power on again, the heat pump will automatically run at
the settings before power off.
5. Trouble shooting
5.1 Error code on the LED controller
Malfunction
Code
Possible reason
Advised solutions
Too low
or too high
ambient
temperature protection
E00
1. Ambient temperature is out of
its operating range: 8
℃
or above;
2. Controller failure.
1. Wait the ambient temperature rises up
to
11
℃
or reduces to 57
℃
to restart.
2. Replace a new controller.
Water temperature sensor
failure
E01
Water temperature sensor
disconnected or short circuit.
Check and connect it, or replace it with a
new water temp. sensor (5K).
Ambient temperature sensor
failure
E02
Ambient temperature sensor
disconnected or short circuit.
Check and connect it, or replace it with a
new ambient temp. sensor (5K).
Compressor discharge over
high protection
E03
Capiliary tube blocked or
refrigerant charge not enough, or
no water flow in titanium heat
exchanger
It must be handled by the professional,
please contact your supplier.
Discharge temp. sensor failure E04
Discharge temperature sensor
disconnected or short circuit.
Check and connect it, or replace it with a
new discharge temp. sensor (50K).
Low pressure protection
EL
1. Low pressure switch
disconnected or failure; 2. Gas
leakage.
It must be handled by the professional,
please contact your supplier.
5.2 Other Malfunctions and Solutions (No display on LED wire controller)
