TM 5-3895-354-14&P
98. ULTRAVIOLET (UV) CELL FAILS TO OPERATE
Probable Cause
Possible Remedy
Viewing window on U.V. Cell tube obscured
Clean viewing window (Para. 53)
Defective UV scanner
Replace a defective UV scanner (Para. 53)
Program controller defective
Replace a defective program controller (Para. 46)
99. PROGRAM CONTROLLER WILL NOT START OPERATING SEQUENCE
Probable Cause
Possible Remedy
Blower motor starter reset switch open
Reset switch (Para. 44)
Defective blower motor starter
Replace a defective blower motor starter (Para. 45)
Operating limit open
Check oil level in expansion tank for low level, oil
pressure and pressuretrol setting, hot oil temperature
and temperature controller settings and/or overloads in
starters
Temperature controller improperly set or defective
Set operating limits on temperature controller
compatible with heat range of hot oil heater. Replace a
defective temperature controller (Para 47)
Program controller defective
Replace a defective program controller (Para. 46)
Burner switch turned to "OFF"
Turn switch to "ON" position
Control power dead
Check transformer for output and check fuses
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