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HBG EVAPORATOR
OPERATOR’S MANUAL
45
HBG • 8.913-990.0-K
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
MACHINE WON’T
POWER UP
Breaker tripped
Reset breaker and reset batch cycle
controller by pushing the F1/RST button.
Batch cycle complete
Reset batch cycle controller by pushing the
F1/RST button.
PILOT DOES
NOT LIGHT
(HBG-15)
Air in gas line
Bleed gas line.
High or low gas pressure
Adjust air regulator.
Blocked pilot orifi ce
Replace or clean orifi ce.
PILOT GOES OUT
FREQUENTLY DURING
STANDBY (HBG-15)
Restriction in pilot gas line
Clean line.
Low gas pressure
Adjust pressure regulator.
Blocked pilot orifi ce
Replace or clean orifi ce.
PILOT GOES OUT
WHEN GAS VALVE
OPENS (HBG-15)
Restriction in pilot gas line
Clean pilot orifi ce.
High or low gas pressure
Test and adjust pressure.
Excessive pressure drop when main
gas valve opens
Increase size of inlet gas piping.
BURNER MOTOR
DOES NOT RUN
Burned out fuse or current is off
Check fuse and replace.
Thermostat or limit defective or im-
properly set
Test and reset thermostat.
Relay or transformer defective
Test and replace.
Motor burned out
Replace.
Improper wiring
Check all connections.
Manual reset high temperature switch
is tripped
Scrape and clean fl oor of tank. Reset
swtich on back of control box.
Liquid level is too high. High fl oat is in
up position
Remove enough water from tank to lower
level fl oat then restart burner.
BURNER MOTOR
RUNNING BUT
NO FLAME
Pilot out (HBG-15)
Restart burner.
Very low or no gas pressure
Adjust pressure regulator.
Motor running too slow
Check voltage.
SHORT NOISY
BURNER FLAME
Pressure regulator set too low
Increase pressure.
Air shutter open too wide
Close shutter.
Too much pressure drop in gas line
Increase gas pipe size.
Defective regulator
Replace.
LONG YELLOW
FLAME
Air shutter not open enough
Open air shutter (see Air Setting).
Air openings or blower wheel clogged Clean.
Too much input gas
Turn gas pressure down.
MAIN GAS VALVE DOES
NOT CLOSE WHEN
BLOWER STOPS
Defective valve
Replace gas valve.
Obstruction on valve seat
Replace gas valve.
REGULATOR VENT
LEAKING GAS
Hole in diaphragm
Replace regulator
BURNER IGNITES FOR
2-4 SECONDS (HBG-30)
Check main voltage polarity
Switch black & white incoming power wires.
Содержание HBG-15
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