REMEHA Quinta Pro Installation, User And Service Manual page 69

Error code Description
Open circuit in return temperature sensor:
Bad connection: check the wiring
Sensor not connected or incorrectly connected:
Faulty sensor: replace the sensor if necessary
Return temperature too low:
Bad connection: check the wiring
Faulty sensor: replace the sensor if necessary
Sensor not connected or incorrectly connected:
No circulation:
Return temperature too high:
Bad connection: check the wiring
Faulty sensor: replace the sensor if necessary
Sensor not connected or incorrectly connected:
No circulation:
Difference between the flow and return temperatures too great:
No circulation:
Sensor not connected or incorrectly connected:
Faulty sensor: replace the sensor if necessary
Temperature of heat exchanger above normal range (STB high-limit thermostat):
If present: Air pressure differential switch has been triggered:
123157 - v.07 - 10082015
Check that the sensors are operating correctly
Check that the sensor has been fitted properly
Check that the sensors are operating correctly
Check that the sensor has been fitted properly
Vent the air from the CH system
Check the circulation (direction, pump, valves)
Check the water pressure
Check the cleanliness of the heat exchanger
If present: check the boiler type parameter setting
Check that the sensors are operating correctly
Check that the sensor has been fitted properly
Vent the air from the CH system
Check the circulation (direction, pump, valves)
Check the water pressure
Check the cleanliness of the heat exchanger
If present: check the boiler type parameter setting
Vent the air from the CH system
Check the circulation (direction, pump, valves)
Check the water pressure
Check the cleanliness of the heat exchanger
Check that the heating pump is operating correctly
If present: check the boiler type parameter setting
Check that the sensors are operating correctly
Check that the sensor has been fitted properly
Bad connection: check the wiring
Sensor not connected or incorrectly connected:
Check that the sensors are operating correctly
Check that the sensor has been fitted properly
Faulty sensor: replace the sensor if necessary
No circulation:
Vent the air from the CH system
Check the circulation (direction, pump, valves)
Check the water pressure
Check the cleanliness of the heat exchanger
If present: check the boiler type parameter setting
Air supply or flue gas outlet blocked: check air supply and flue gas outlet for blockage
11 Troubleshooting
69