AM Series Boilers and Water Heaters
CHAPTER 9 – OPERATION
Page
108
of
154
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0100_0D
03/28/16
Ph.: 800-526-0288
GF-146
Lockout Error Messages
LOC# DESCRIPTION
CHECKS
SOLUTIONS
Loc 38
Flue sensor does not
increase temperature when
burner on
a)
Check if flue temperature
sensor match section
10.24
b)
Check if flue gas sensor
reading (parameter 1006)
increases temperature
when burner fire.
a)
If temperature sensor does not match section
10.24, it must be replaced.
b)
If temperature does not increase replace the flue
gas sensor or the control board.
9.20 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 Blocking (Err) 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 the chart below 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.
Blocking Error Messages
ERR#
DESCRIPTION
CHECKS
SOLUTIONS
Err 0
One sensor is out of
range
a)
Check all temperature sensors
(parameters 1001, 1002, 1004
1006 1007 1102) if are into a
reasonable field of temperature.
Take care attention to 1002 and
1004 if really are connected.
a)
If temperature reading is not reasonable replace
the relative sensor.
Err
45 to 53
Internal software error
Replace the power control board.
Err 54
Flame detected, but not
observed.
-
Replace the power control board.
Err
55 to 58
Low water pressure error
Check pressure sensor.
Replace the pressure sensor.
Err 59
Low water pressure error
Check the pressure entering the
water system and gradually
increase it.
a)
If water system pressure is over what is set in
parameter 3022, replace the water pressure
sensor.
b)
If filling the system for the first time, turn parameter
2011 to ON to open the internal valve and allow air
to purge.