AERCO Esteem Users Guide - Manual (Page 17)

14
Error (Hard Lockout) Mode
Gas valve harness not properly connected
Failed ignition after 5 attempts
Power supply lost after lockout occured
Internal control failure
Internal control failure
E
E
02
03
04
08
09
E
E
E
Display Hard Lockout
Internal control failure
05
E
Internal control failure
06
E
Internal control failure
07
E
Flame detected prior to burner startup
E 00
Internal control failure
External limit (terminals 13 & 14) control is OPEN
Blower signal does not reset to zero
No blower signal present
Supply temperature sensor is short circuited
11
12
15
16
29
28
E
E
E
E
E
E
Flue temperature exceeds 250 F
52
E
Internal control error - failure to read parameters
61
E
Return temperature is short circuited
Supply temperature sensor is OPEN
Return temperature sensor is OPEN
Internal control failure
Internal control failure
Inadequate power supply to the fan
E
E
31
32
36
37
44
60
65
E
E
E
E
E
Flue temperature sensor is OPEN
40 E
Return temperature exceeds 212 F
Supply temperature increased too rapidly
Internal control failure
Internal control failure
Internal control failure
Internal control failure
Internal control failure
17
19
25
13
E
E
E
E
Supply Temperature exceeds 212 F
18 E
E 14
Error (Hard Lockout) Mode
If a system fault occurs while the boiler is
running, the system goes into lockout and
the display starts to flash with the first digit
as an E and the next two digits represent the
fault code.
For a detailed description of the error codes,
reference the Esteem Trouble Shooting
Guide.
WARNING!
D URING A HARD LOCKOUT OR LOW WATER
CONDITION THE BOILER WILL NOT RE - START
WITHOUT SERVICE . I F THE HEATING SYSTEM
IS LEFT UNATTENDED IN COLD WEATHER , AP -
PROPRIATE SAFEGUARDS OR ALARMS SHOULD
BE INSTALLED TO PREVENT PROPERTY DAM
-
AGE .
Boiler Freeze Protection Feature
The boiler control has a freeze protection
feature built in. This feature monitors the
boiler temperature and responds as follows
when no call for heat is present.
• 46 ºF Boiler circulator is ON
• 38 ºF Boiler circulator is ON and burner
operates at low fire.
• 50 ºF Burner OFF and boiler circulator
operates for approximately 10 minutes.
C
AUTION
The boiler freeze protection feature is
disabled during a Hard Lockout, how-
ever the CH circulator will operate.
C
AUTION
During a hard lockout or low water con-
dition the boiler will not re-start without
service. If the heating system is left un-
attended in cold weather, appropriate
safeguards or alarms should be installed
to prevent property damage.
GF-125U