Maintenance; Instructions For Opening The Casing And Performing An Internal Inspection - Ferroli EXTERNO 11 User Manual

50
Temperature sensor overheat protection
51
60 Outlet temperature sensor fault
70 Wrong parameter setting protection

44. MAINTENANCE

45. INSTRUCTIONS FOR OPENING THE CASING AND PERFORMING AN INTERNAL INSPECTION

Before performing any work on the appliance, first disconnect it from the electric power supply and
close the gas valve. To open the casing of the appliance, loosen the 4 screws in front of the casing and
remove them.
I
Maintenance is an essential part of the safe and efficient operation of the appliance and ensures its du-
rability. It should be performed according to the instructions given in current legislation. Perform com-
bustion analysis regularly in order to check the operating efficiency of the appliance and to make sure
any polluting substances related are within the boundaries set by current legislation.
Before beginning maintenance work:
- Disconnect the appliance from the electricity supply by turning the external bipolar switch to the "OFF"
position;
- Close the gas valve and the central heating and domestic hot water system valve.
After the work has been completed the initial settings will be restored.
62
EN
Inlet temperature >85°C, check the temperature sensor
Outlet temperature >85°C, check the temperature sensor
Contact a dealer or qualified service technician
Check the capacity, gas type, product model setting
Cod. 3541T440 - Rev. 05 - 02/2020
EXTERNO