TM 5-3895-374-24-2
DIAGNOSTIC MESSAGES (CONTINUED)
POSSIBLE CAUSE
SOLUTION
- Voltage on Terminals 5 or 6 at
-Check field wiring to Terminal
an improper time
5 and 6
-High Electrical Noise
-Check for Proper ground on
power supply
-Install noise suppressor on power
supply
-Reroute scanner wires away
from high voltage wiring
- Fuel Changeover on Burners
-Interrupt power when changing
with Direct Spark Oil
fuels
-Install time delay relay
-Note write-up on page 13 of this
bulletin
-Defective Programmer
-Replace Programmer
-Defective Chassis
-Replace Chassis
Scanner signal has been detected during the shutter closed time. This can
be caused by a faulty UV tube (4-314-1), faulty scanner (45UV5) or lack of
power to the scanner.
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