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Combustex BMS-2000 [5.03] Operations Manual -
6. TROUBLESHOOTING
Phone:
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NO.
BMS ERROR MESSAGE /
SHUTDOWN
ERROR SOURCE /
DESCRIPTION
CORRECTIVE ACTION
3
Bath T/C Failed
Bath T/C sensor indicates OPEN
thermocouple state.
Message indicates open/faulty thermocouple on T/C input TS5 #7-8.
Check wiring of thermocouple to BMS and ensure wires are securely
and properly terminated. Check T/C condition with mV meter or T/C
calibrator. If T/C is faulty, replace with new one. If wiring and T/C are OK,
disconnect T/C and jumper terminals. If S/D is still active with terminal
jumpered, contact Combustex for replacment of T/C modules.
4
Flame 1 Failed On 1st Level
Pilot 1 failed to reach 1st level
(usually 250˚C) within Trial for
Ignition Timer value
Verify thermocouple condition with mV source or T/C calibrator. If T/C
is faulty, replace with new one. If T/C is in good condition, check the
position of the T/C in the pilot head to ensure it is getting good exposure
to flame. Also, ensure pilot assembly is correctly installed and aligned
with main burner.
Note:
Flame T/C levels and timers may need to be
adjusted slightly to best suit pilot and burner conditions.
5
Flame 1 Failed On 2nd
Level
Pilot 1 failed to reach 2nd level
(usually 450˚C) within Flame T/C
2nd Level Timer value.
Verify thermocouple condition with mV source or T/C calibrator. If T/C
is faulty, replace with new one. If T/C is in good condition, check the
position of the T/C in the pilot head to ensure it is getting good exposure
to flame. Also, ensure pilot assembly is correctly installed and aligned
with main burner.
NOTE:
Flame T/C levels and timers may need to be
adjusted slightly to best suit pilot and burner conditions.
6
Flame 1 Failed During
Relite
Pilot 1 failed to ignite within all
preset relite attempts.
Verify thermocouple condition with mV source or T/C calibrator. If T/C
is faulty, replace with new one. If T/C is in good condition, check the
position of the T/C in the pilot head to ensure it is getting good exposure
to flame. Also, ensure pilot assembly is correctly installed and aligned
with main burner. Verify spark plug is producing strong spark. If spark
plug is faulty, replace with new one.
7
Flame 1 Off
or
Flame 1 Failed to Ignite
Contact Type flame detection
on pilot 1 failed to confirm
flame within Trial for Ignition
Timer value.
Check wiring of Ignition Module or Flame Scanner back to BMS at TS2 #5-
6. Refer to Model 900 or 550 manual for Ignition Module to BMS wiring
schematic. If wiring is OK, check condition of pilot ignition module
for burner 1 or 3rd party flame sensing equipment (Flame Scanner).
Also check condition and installation of all pilot assembly equipment.
Replace any faulty piece of equipment as required. Contact Combustex if
problems persist.
8
Flame 1 T/C Failed
Pilot 1 Flame T/C sensor
indicates OPEN thermocouple
state.
Message indicates open/faulty thermocouple on T/C input TS6 #7-8.
Check wiring of thermocouple to BMS and ensure wires are securely
and properly terminated. Check T/C condition with mV meter or T/C
calibrator. If T/C is faulty, replace with new one. If wiring and T/C are OK,
disconnect T/C and jumper terminals. If S/D is still active with terminal
jumpered, contact Combustex for replacement of T/C modules.
9
Flame 2 Failed On 1st Level
Pilot 2 failed to reach 1st level
(usually 250˚C) within Trial for
Ignition Timer value
Verify thermocouple condition with mV source or T/C calibrator. If T/C
is faulty, replace with new one. If T/C is in good condition, check the
position of the T/C in the pilot head to ensure it is getting good exposure
to flame. Also, ensure pilot assembly is correctly installed and aligned
with main burner.
NOTE:
Flame T/C levels and timers may need to be
adjusted slightly to best suit pilot and burner conditions.
10
Flame 2 Failed On 2nd
Level
Pilot 2 failed to reach 2nd level
(usually 450˚C) within Flame T/C
2nd Level Timer value.
Verify thermocouple condition with mV source or T/C calibrator. If T/C
is faulty, replace with new one. If T/C is in good condition, check the
position of the T/C in the pilot head to ensure it is getting good exposure
to flame. Also, ensure pilot assembly is correctly installed and aligned
with main burner.
NOTE:
Flame T/C levels and timers may need to be
adjusted slightly to best suit pilot and burner conditions.
