AERCO BMK 6000 Dual Fuel - Manual (Page 163)

Benchmark 6000 DF Installation, Operation & Maintenance Manual
APPENDIX B – STARTUP, STATUS & DISPLAY MESSAGES
OMM-0096_0B AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 163 of 219
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Ph.: 800-526-0288
03/21/2014
Table B-2: Fault Messages – Continued
FAULT MESSAGE FAULT DESCRIPTION
IGN SWTCH OPEN
DURING IGNITION
The Ignition Position Limit switch on the Air/Fuel Valve
opened during ignition.
INTERLOCK
OPEN
The Remote Interlock is open.
LINE VOLTAGE
OUT OF PHASE
The Line (Hot) and Neutral wires are reversed.
LOW WATER
LEVEL
The Low Water Cutoff board is indicating low water level.
MODBUS COMM
FAULT
The RS-485 network information is not present or is
corrupted.
O2 PERCENTAGE
LOW
The O2 percentage measured by the O2 sensor is below
??%
O2 SENSOR
MALFUNCTION
A fault exists in the O2 sensor.
OUTDOOR TEMP
SENSOR FAULT
The temperature measured by the Outdoor Air Sensor is out
of range.
OUTLET TEMP
SENSOR FAULT
The temperature measured by the Outlet Sensor is out of
range:
OUTLET TEMPERATURE display = SHt Indicates sensor is
shorted
OUTLET TEMPERATURE display = Opn indicates sensor is
open-circuited
PRG SWTCH CLOSED
DURING IGNITION
The Purge Position Limit Switch on the Air/Fuel Valve closed
during ignition.
PRG SWTCH OPEN
DURING PURGE
The Purge Position Limit Switch on the Air/Fuel Valve
opened during purge.
REMOTE SETPT
SIGNAL FAULT
The Remote Setpoint signal is not present or is out of range.
RESIDUAL
FLAME
The flame signal was seen for more than 60 seconds during
standby.
SSOV
SWITCH OPEN
The SSOV switch opened during standby.
SSOV FAULT
DURING PURGE
The SSOV switch opened during purge.