Baxi MainEco Combi 24 Installation And Service Manual page 69

Baxi MainEco Combi and System 24 - 28 - 35 / 18 - 24
Lock out (Status signals)
Status Description
signals
Error code 4
(4 times red Fan fault
signal)
Error code 5
(5 times red Parameter error
signal)
Error code 6
(6 times red Miscellaneous
signal)
Lock out (Error code - e[KK)
Error Description
code
Storage unit PSU
e[00
parameter not found
The safety parameters
e[01
are incorrect
Flow temperature
e[02
sensor short circuited
Flow temperature
e[03
sensor open circuit
Flow temperature too
low
e[04
Flow temperature too
e[05
high
Return temperature
e[06
sensor short circuited
Return temperature
e[07
sensor open circuit
Return temperature too
low
e[08
Return temperature too
e[09
high
02092014 - 7619497-02
Probable causes
External draught over the
4
boiler
Defective gas/air unit
4
Bad connection
4
Safety parameters not
4
found
Several possible causes
4
Probable causes
Bad connection
4
Bad connection
4
PSU defective
4
Sensor not or badly
4
connected
Bad connection
4
Sensor fault
4
Sensor not or badly
4
connected
Bad connection
4
Sensor fault
4
No circulation
4
Bad connection
4
Sensor not or badly
4
connected
Sensor fault
4
Sensor not or badly
4
connected
Bad connection
4
Sensor fault
4
Sensor not or badly
4
connected
Bad connection
4
Sensor fault
4
No circulation
4
Bad connection
4
Sensor not or badly
4
connected
Sensor fault
4
Checking / solution
Check for adequate draw on the chimney connection
4
Replace the gas/air unit
4
Check the wiring
4
ResetdF/dU code with Recom software, controller or
4
service tool
The fault codes can be read with the Recom service
4
software, a suitable controller or a service tool
Checking / solution
Check the wiring
4
Check the wiring
4
Replace PSU
4
Check the wiring
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
4
Replace the sensor if necessary
4
Check the wiring
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
4
Replace the sensor if necessary
4
Vent the air in the heating system
4
Check the water pressure
4
Check the wiring
4
Check the circulation (direction, pump, valves)
4
Check the cleanliness of the heat exchanger
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
4
Replace the sensor if necessary
4
Check that the sensor has been correctly fitted
4
Check the wiring
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
4
Check the wiring
4
Check that the sensors are operating correctly
4
Vent the air in the heating system
4
Check the water pressure
4
Check the wiring
4
Check the circulation (direction, pump, valves)
4
Check the cleanliness of the heat exchanger
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
4
Replace the sensor if necessary
4
9. Troubleshooting
67