Buderus Logamax plus GB162-80 kW Installation Instructions Manual page 60

13
Display information
Main Sub
display display Key to display code
code code
Locking fault:
The flow temperature sensor has measured a current flow temperature
higher than 203 °F (95 °C).
Locking fault:
The safety temperature sensor has measured a current flow
temperature higher than 203 °F (95 °C).
Locking fault:
The return temperature sensor has measured a current return
temperature higher than 203 °F (95 °C).
Blocking fault:
The flue gas sensor temperature is too high.
Locking fault:
There is no connection between contacts 78 and 50 of the UBA 3
installation base.
Blocking fault:
The flue gas sensor contacts have shorted.
Blocking fault:
The flue gas sensor contacts are open.
Locking fault:
The system pressure is too low (less than 3 psi [0.2 bar]).
Locking fault:
The flow temperature sensor has not, after burner start-up, detected any
temperature increase in the heating systems water.
Locking fault:
The heating water temperature difference, measured between the flow
temperature sensor and the safety temperature sensor, is too high.
Locking fault:
The flow temperature sensor has measured a heating water
temperature increase of over 40 °F/s (5 °C/s).
Locking fault:
The temperature difference measured between the flow temperature
sensor and the return temperature sensor, is more than 122 °F (50 °C).
Locking fault:
The pump has stopped or is running without water.
Locking fault:
No feedback from the pump.
Locking fault:
The tacho signal from the fan has failed during the operating phase.
Blocking fault:
No current of air after a certain time.
Operating phase: The appliance has been switched off for a couple of
seconds, because it had been running without any interruption for 24
hours. This is a safety check.
Blocking fault:
The tacho signal from the fan is not present during the pre-operative or
operating phase.
Blocking fault:
The fan is running too slowly.
Blocking fault:
The fan is running too fast.
Tab. 23 Display codes
60
Display codes
Logamax plus GB162- 80/100 kW - Subject to modifications resulting from technical improvements!
Other effects
The room temperature is not possibly
reached.
The room temperature is not possibly
reached.
The room temperature is not possibly
reached.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.
No heating operation and no DHW.