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AM Series Boilers and Water Heaters
CHAPTER 9 – OPERATION
OMM-0100_0D
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
109
of
154
GF-146
Ph.: 800-526-0288
03/28/16
Blocking Error Messages
ERR#
DESCRIPTION
CHECKS
SOLUTIONS
Err 60
High flue gas temperature
error
c)
Check the combustion efficiency of
the burner in fail. Combustion
Efficiency must be higher than 92%.
d)
Check the flue gas temperature
sensor for the values indicated in
section 10.24.
a)
If combustion efficiency is lower than 92% , clean
both the flue gas side and the water side of the heat
exchanger.
b)
If flue temperature sensor does not match section
10.24, replace it.
Err 61
Return temperature is
higher than stay burning
temperature
Check the return temperature sensor
for values indicated in section 10.24.
If return temperature sensor does not match section
6.1.4, replace it.
Err 62
Blocked drain switch is
active
a)
Check if the condensate drain is
blocked
b)
Check if the condensate tank is
blocked.
a)
Remove any obstruction from the condensate
drain.
b)
Check the condensate tank, if medium is
exhausted, it must be replaced.
Err 64
No correct Frequency
signal, or no correct
ground connection, or no
communication with the
a)
Check frequency signal is between
55 and 65Hz.
b)
Check the ground connection
(between ground and neutral it must
a)
If out of range, consult your electrical supplier.
b)
If the ground connection is not correct, ask your
electrical supplier to investigate. Alternately, replace
the power control board.
Err 65
Hot neutral reversed
Check supply voltage polarity.
Reverse supply voltage polarity if needed.
Err 66
Net freq. error detected in
the main
Check the frequency signal. It must
be between 55 and 65Hz.
If out of range, consult your electrical supplier.
Alternately, replace the power control board.
Err 67
Faulty earth connection
Check the earth connection to the
appliance.
Reconnect the earth connection.
Err 68
Watchdog communication
error
Check the connections to the
appliance.
Reconnect the power control board.
Err 72
Supply sensor open
Check the connections to the
appliance.
If temperature sensor does not comply with section
10.24, replace.
Err 73
Return sensor open
Err 76
DHW sensor open
Err 80
Supply sensor shorted
Err 81
Return sensor shorted
Err 84
DHW sensor shorted
Err 86
Flue sensor shorted
Err 87
Reset button error
Too many reset button pushes within
60 sec. period.
Err 93
Appliance selection error
Check the list of 3000 parameters
(Appendix B).
Err 107
Internal software error
-
Replace the power control board.
Err 108
Err 109