AERCO AM Series Boiler User Manual - Manual (Page 112)

AM Series Boilers and Water Heaters
CHAPTER 5 – OPERATION
Page 112 of 156 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0100_0B
PRI - 07/14/14
Ph.: 800-526-0288
GF-146
5.7 Diagnostics – Blocking (Err) Errors
Blocking errors are generated by a permanent fault. There is no way to unlock the unit other
than to resolve the cause of the fault.
To reset a lockout error, do the following:
Resetting the Unit after a Lockout Error
1. When the boiler goes into lockout, the icon will show in the control panel display and
the burner icon(s) ( , , , or ) associated with the lockout will blink.
2. Press the RESET button once and the lockout error number will show in the display.
3. To resolve the error, consult the table of Error (Err) messages in Figure 5-8 and attempt to
diagnose and resolve the problem.
4. To return the display to normal function, press and hold down the RESET button for at least
5 seconds.