10
to original terminals.
1.2
）
If there is E4alarm, can determine the temperature controller malfunction; If there is E5 alarm,
can determine the room temperature sensor failure.
1.3
）
If the alarm display E4 ,E5 at the same time , suggest to replace room temperature sensor and
temperature sensor and temperature controller
Alarm code E5: Water temperature sensor failure
Reason:
1
、
Connected wires loose
2
、
Sensor failure
Testing method
1
）
Look for the terminals of room temperature sensor and water temperature sensor (as picture), swap
and connect the room temperature sensor and water temperature sensor to the temperature controller.
1.1
）
If the alarm stop can judge is the terminal poor contact, reconnect the wires back to original
terminals.
1.2
）
If there is E5 alarm, can determine the temperature controller malfunction, if there is E4 alarm,
can determine the temperature sensor failure;
1.3
）
If the alarm display E4 ,E5 at the same time , suggest to replace room temperature sensor and
temperature sensor and temperature controller
