ACL 5100 Installation Manual page 15

Blown fuse
Supply voltage too low
Poor power connections
POC terminal not closed (5100 Only)
Remote stop not closed (5100 Only)
Fuel gas supply to pilot may be too
high or too low
Gap setting on ignitor/flame rod not
correct
Ignition cable defective or insulation
worn
Poor ground
Pilot solenoid failure
Plugged orifice on pilot
Gap seting too wide or rod not cut to a setting
point
Ignition cable defective or insulation
worn
Poor ground
Contaminated Ignitor rod or pilot
nozzle
BMS Troubleshooting Guide BMS Troubleshooting Guide
BMS Trouble Shooting Guide
Fails to Attempt Ignition Fails to Attempt Ignition
Fails to attempt ignition
Replace fuse 4 amp max for 5100 and 5500 6.4 amp max for
CSC 200
Ensure 11.5 volts minimum supply power for 12/24 or 119 VAC
for 120/240
Check connections on terminal strips
Ensure 12 volts on both terminals
Ensure 12 volts on both terminals
Attempt Ignition But Doesn't Light Attempt Ignition But Doesn't Light
Attempts ignition but doesn't light
Pilot fuel gas supply should be set at 5 pounds
Gap should be approx 1/8" and rod tip needs to be cut to a sharp
point
Check continutiy through the igniton cable, should read (0 Ohms)
if not you will need to replace cable
Ensure ground connections are good in BMS and at pilot/burner
Check supply power to solenoid, and check gas flow through
solenoid
Clean out pilot orifice (Do not redrill)
Weak or Erratic Spark Weak or Erratic Spark
Weak or erratic spark
Shorten gap setting to approx 1/8" and re cut the igntior rod tip.
Replace Cable
Check ground at both ends (BMS & ignitor tip)
Remove pilot assembly clean rod and nozzle and re install
13
ACL 5100 Combustion Safety Controller ACL 5100 Combustion Safety Controller