Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 6
– TROUBLESHOOTING
OMM-
0137_E • GF-211 • 12/13/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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TABLE 10-1: Boiler Troubleshooting Procedures
Fault
Probable Causes
Corrective Action
5.
Combustion oscillations.
5.
Run unit to full fire. If the unit rumbles or runs rough, perform
combustion calibration.
6.
Probable causes from 3 to 16 for AIRFLOW
FAULT DURING IGNITION applies for this
fault.
6.
See CORRECTIVE ACTIONS from 3 to 12 for AIRFLOW FAULT
DURING IGNITION.
DELAYED
INTERLOCK
OPEN
1.
Delayed Interlock Jumper not properly installed
or missing.
1.
Check to insure jumper is properly installed across the Delayed
Interlock terminals in the I/O Box.
2.
Device proving switch hooked to interlocks is
not closed.
2.
If there are 2 external wires on these terminals, check to see if an
end switch for a proving device (such as a pump, louver, etc.) is
tied these interlocks. Ensure that the device and/or its end switch is
functional. A jumper may be temporarily installed to test the
interlock.
DIRECT DRIVE
SIGNAL FAULT
1.
Direct drive signal is not present:
•
Not yet installed.
•
Wrong polarity.
•
Signal defective at source.
•
Broken or loose wiring.
1.
Check I/O Box to ensure signal is hooked up.
•
Hook up if not installed.
•
If installed, check polarity.
•
Measure signal level.
•
Check wiring continuity between source and unit.
2.
Signal is not isolated (floating).
2.
Check signal at source to ensure it is isolated.
3.
Edge Controller signal type selection switches
not set for correct signal type (voltage or
current).
3.
Check DIP switch on
the Controller’s Interface board to ensure it is
set correctly for the type of signal being sent. Check control signal
type set in
Advanced Setup
→
BST Cascade
→
Application
Configuration
screen.
FLAME LOSS
DURING IGN
1.
Worn Flame Detector.
1.
Remove and inspect the Flame Detector for signs of wear. Replace
if necessary.
2.
No spark from Spark Igniter.
2.
Close the internal gas valve in the unit. Install and arc a spark
igniter outside the unit.
3.
Defective Ignition Transformer.
3.
If there is no spark, check for 120VAC at the primary side to the
ignition transformer during the ignition cycle.
