- 49 -
Er 21
Ambient temp
fault
1. The interface between the sensor and the
main board is loose or falls off;
2. The sensor probe falls off;
3. The sensor connection wire is open or
short-circuited;
4. The sensor is damaged;
1. Check and reinforce the interface between
the sensor and the main board;
2. Re-fix the sensor probe;
3. Repair the sensor connection line;
4. Replace the sensor;
Er 23
Over-cooling
protection of
outlet water
under cooling
mode
1. The interface between the sensor and the
main board is loose or falls off;
2. The sensor probe falls off;
3. The sensor connection wire is open or
short-circuited;
4. The sensor is damaged;
1. Check and reinforce the interface between
the sensor and the main board;
2. Re-fix the sensor probe;
3. Repair the sensor connection line;
4. Replace the sensor;
Er 26
Heat sink temp
fault
1. The fan is not working properly;
2. Dirty fins cause poor heat dissipation;
3. The drive module is damaged;
1. Check whether the fan is working normally;
2. Clean the outer fins;
3. Replace the drive module;
Er 27
Outlet water
temp sensor
fault
1. The interface between the sensor and the
main board is loose or falls off;
2. The sensor probe falls off;
3. The sensor connection wire is open or
short-circuited;
4. The sensor is damaged;
1. Check and reinforce the interface between
the sensor and the main board;
2. Re-fix the sensor probe;
3. Repair the sensor connection line;
4. Replace the sensor;
Er 29
Suction temp
sensor fault
1. The interface between the sensor and the
main board is loose or falls off;
2. The sensor probe falls off;
3. The sensor connection wire is open or
short-circuited;
4. The sensor is damaged;
1. Check and reinforce the interface between
the sensor and the main board;
2. Re-fix the sensor probe;
3. Repair the sensor connection line;
4. Replace the sensor;
Er 32
Overheating
protection of
outlet water
temp under
heating mode
1. The temperature setting is too high
2. Insufficient water flow
3. Sensor failure
1. Lower the set temperature
2. Increase water flow
3. Check the sensor and replace or repair it.
Summary of Contents for ISW-10 SF1-DN1
Page 21: ... 21 XD 05BSPM ...
Page 56: ... 56 By sliding the button you can adjust the setting parameters Function buttons ...
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