Error History; Error History Readout - UTICA BOILERS UCS 380 Installation, Operation And Maintenance Manual

13.3 Error History

Boiler control is equipped with error memory which, records
last 16 errors. In addition to storing error codes, the following
data is also saved:
• Number of times that the error occurred: (n:xx).
• Boiler operating mode selected (St:xx).
• The supply temperature (t1:xx) and the return
temperature (t2:xx) when the error occurred.
To view the error history, enter access code 0012.
Readout
13.4 Error History
buttons simultaneously and then (+)
• Press two
button until the
• Select the installers menu using
appears on the display.
• Use (-) or (+) button to input installer code 0012.
• Press button. "Er:xx" appears on the display.
• The fault list can be displayed by pressing (-) or (+)
button.
• Confirm using
"xx" flashing = Last error which occurred, for example
"2".
• Use (-) or (+) buttons to scroll through faults.
• Press button to display details of faults or
shutdowns.
• Press (-) or (+) buttons to view the following
information:
n:1 = Number of times that the error occurred.
hr = The number of operating hours.
St = State.
Su = Sub-status.
t1 = Supply temperature ºF/ºC.
t2 = Return temperature ºF/ºC. t3 = DHW tank
temperature ºF/ºC.
t4 = Outdoor temperature ºF/ºC (Only with an outdoor
temperature sensor).
t5 = Solar panel temperature ºF/ºC. t6 = Flue gas
temperature ºF/ºC.
Sp = Internal set point ºF/ºC.
fl = Ionization current (μA).
nf = Fan speed in rpm.
Pr = Water pressure psi/bar.
Po= Supplied relative heat output (%).
button to interrupt display cycle. "Er:xx" is
• Press
displayed with "xx" flashing = Last error which occurred.
• Use (-) or (+) button to scroll through faults.
• Press button to show fault list.
• Press button 2 times to exit error history.
13 - TROUBLE SHOOTING
symbol flashes on the menu bar.
button. "CODE"
button. "Er:xx" is displayed with
2x
73
PN 240011662 Rev. K [01/31/2020]