ATECPOOL SIROCCO HEAT PUMP > Common Failure Solution
14
Er. 12
High exhaust temp protection
1.
Replace the compressor exhaust temperature
sensor.
2.
Reconnect or clean compressor exhaust
temperature sensor and wrap it with insulationtape.
3.
Replace the controller or PC Board.
Er. 15
Water inlet temperature failure
Check the connection, change the sensor if
necessary.
Er. 16
External coil temperature failure
Check the connection, change the sensor if
necessary.
Er. 18
Exhaust temperature failure
Check the connection, change the sensor if
necessary.
Er. 19
DC fan motor failure
1.Check DC fan motor. Change it if damaged.
Check output port of DC fan motor on PCB. Change
the PCB if there is no output.
Er. 20
Abnormal protection of frequency conversion module
Solve it according to the subsidiary error codes in
the following table.
Er. 21
Ambient temperature failure
Check the connection, change the sensor if
necessary.
Er. 23
Low outlet water temp protection when cooling
Check the water flow and water system, fix/replace
it if necessary.
Er. 27
Water outlet temperature failure
Check the connection, change the sensor if
necessary.
Er. 28
Compressor transformer over current protection
1.
Wait for about 3-5 minutes before restarting the
unit
2.
Change the driver board if the compressor
transformer is broken
Er. 29
Suction temperature failure
Check the connection, change the sensor if
necessary.
Er. 32
High outlet water temperature protection when heating
Check the water flow and water system, mend it if
necessary.
Er. 33
Outdoor coil high temperature protection
Wait for the ambient temperature drops and restart
the unit.
Er. 42
Internal coil temperature failure
E20 failure will display the following error codes at the same time, switching every 3 seconds. Error codes 1-128 appear in
priority. When error codes 1-128 don’t appear, then it will show error codes 257-384. If two or more error codes appear at
the same time, then display error codes accumulate. For example, if 16 and 32 occur at the same time, it will show 48.
