7 diagnostics – blocking (err) errors, Am series boilers and water heaters – AERCO AM Series Boiler User Manual User 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.
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