Page 2 - General Troubleshooting Float Actuated LMPs
LMPFA-TS 0904-01
OBSERVATION
PROBABLE CAUSE
REMEDY
3. Liqui-Mover pump fills very
rapidly.
1. Unit cycling almost
normally, receiver flooding.
Defective check valve in discharge line
and/or fill line. Possible back flow to
Liqui-Mover pump.
Inspect discharge line check valve and
fill line check valve. Refer to
Assembly and Parts List Drawing.
4. Noise in or at fill line check
valve.
1. Vibration and water hammer
at fill line check valve.
Cold condensate.
Inspect for cold condensate. Throttle
flow control valve, ahead of Liqui-
Mover Pump assembly. Refer to
Assembly and Parts List Drawing,
and start-up procedure.
5. Liqui-Mover pump discharges
very rapidly.
1. Water hammer in discharge
line.
Motive pressure too high.
Throttle flow control valve or install
pressure reducing valve. See start-up
procedure.
2. Receiver flooding, rise in
receiver pressure during
discharge.
Defective check valve in fill line.
Discharging condensate back into
receiver.
Inspect fill line check valve. Refer to
Assembly and Parts List Drawing.
6. Liqui-Mover pump discharge
cycle too long.
1. Possible receiver flooding.
Flow control valve throttled too much. No action required, if receiver not
flooding. If receiver flooding, adjust
flow control valve for discharge of
10 - 15 seconds (approx.).
2. Receiver flooding.
Restriction or increase of back
pressure in discharge line.
Inspect discharge line for partially
closed valve(s), obstructions or
change in pressure. A pressure
increase may require adjustment of
flow control valve to reduce discharge
time. Inspect discharge check valve.
