AM Series Boiler & Water Heater User Manual
CHAPTER 9
– OPERATION
OMM-0100_E
•
GF-146
•
11/15/2019
Technical Support
•
(800) 526-0288
•
Mon-Fri, 8 am - 5 pm EST Page 118 of 170
Lockout Error Messages
LOC# DESCRIPTION
CHECKS
SOLUTIONS
Loc 2
Gas valve not
supplied before
ignition attempt
(When this error
happens to burner 1
(MASTER), it stops
all other burners)
a) - Check High limit temperature switch
b) - Check High limit flue temperature fuse
WARNING!
If the high temperature fuse is
blown, before it is replaced it is mandatory to
inform the manufacturer to prevent serious
damage and a possible dangerous condition.
Failure to comply with this requirement can
result in excessive levels of carbon monoxide,
which can result in severe personal injury or
death!
Loc 3
Gas valve lost cable
connection during
fi
re
a) Check the integrity of the wires
connections between gas valve and control
board.
a)
If wires are interrupted, replace the wires.
b)
If wires are ok try to replace the gas valve or the power
control board.
Loc 4
Gas valve relay not
closing
a) Check the integrity of the wires
connections between gas valve and control
board.
a)
If wires are interrupted, replace the wires.
b)
If wires are ok try to replace the gas valve or the power
control board.
Loc 5
Gas valve circuit
(When this error
happens to burner 1
(MASTER), it stops
all other burners)
a)
Check High limit temperature switch
b)
Check High limit
fl
ue temperature fuse
WARNING!
If the high temperature fuse is
blown, before it is replaced it is mandatory
to inform the manufacturer to prevent serious
damage and a possible dangerous condition.
Failure to comply with this requirement can
result in excessive levels of carbon
monoxide, which can result in severe
personal injury or death!
Loc 6
Safety relay open
error
Replace the power control board
Loc 7
Safety relay closed
error
Replace the power control board
Loc 11
Blocking error over
20 hr.
Press RESET button to see the Blocking
error reference and proceed follow it.
Loc 12
Fan error
a)
Check for 120VAC power connection of
the fan
b)
Check PWM connection of the fan
a)
If no 120Vac is present replace the power control board
b)
If no PWM signal, replace power control board
c)
Try to replace the fan
Loc
13 to
24
Internal software error
Replace the power control board
Loc 25
Gas valve circuit
(When this error
happens to burner 1
(MASTER), it stops
all other burners)
a)
Check High limit temperature switch.
b)
Check High limit
fl
ue temperature fuse.
WARNING!
If the high temperature fuse is
blown before it is replaced, it is mandatory to
inform the manufacturer to prevent serious
damage and a possible dangerous condition.
Failure to comply with this requirement can
result in excessive levels of carbon monoxide,
which can result in severe personal injury or
death!
Loc 26
Internal software error
Replace the power control board
Loc
27 to
28
Flame present with closed gas valve
Replace the gas valve
Loc
29
Interlock input
(When this error
happens to burner
1 (MASTER) stops
all other burners)
a - Check LWCO connection
b - Check flue blocked pressure switch
a - If LWCO intervenes, try to reset it
b - Check if flue gas line is free from any blockage
