Before Calling for Service Section 5
5-2
Part Number 020004000 10/13
Pump Troubleshooting
Problem Possible Cause Corrective Action
Pump motor does not
shut off
Problem with probe or probe harness.
Pump motor
intermittent
Problem with probe or probe harness
Pump motor does not
pump
Water pressure from water source is not
high enough
Verify water pressure leading into pump inlet is 40 psi
(275.79 KPa )
minimum.
PROBLEM POSSIBLE CAUSE CORRECTION
Pump motor does not pump. Black and/or red probe shorted Remove probes and bend straight or replace
with new probe(s)
Problem with motor or motor wiring Check line voltage first. Check AC voltage
across load terminals on Liquid Level Control. If
voltage is 120 plus or minus 10%, replace motor
or motor wiring.
Problem with Liquid Level Control Board. Check line voltage first. If AC voltage across
load terminals is not 120 plus or minus 10%,
replace the Liquid Level Control Board.
Water pressure from water source is not
high enough.
Verify water pressure leading into pump inlet is
40 psi (275.79 KPa ) minimum with pump
running.
Pump will not run but tank
appears to be always full.
Common Lead (Green) shorted out to Red
wire (High Probe)
Verify Green and Red wires are not touching.
Pump will not run but tank level
appears to be below start level.
Common Lead (Green) shorted out to Black
wire (Low Probe)
Verify Green and Black wires are not touching.
Pump motor does not shut off. Problem with Liquid Level Control Board Short the ""H & L"" terminals on the Liquid Level
Control Board. If motor does not shut off,
replace Liquid Level Control Board.
Probe Harness Connection may be open. Verify connections are good or replace the
wiring harness.
Water may not be reaching top probe in
carb tank.
Verify tank is not filled with CO2 or air by pulling
relief valve up and letting air escape until water
begins coming out.
High Lead (Red) open or not connected. Verify Red lead wire is connected from tank to
unit.
Common lead (Green) open or not
connected.
Verify Green lead wire is connected from tank to
unit.
1. Remove probe electronics.
2. Pass magnetic tip of screwdriver by
lower end of tube extending from
electronics package.
3. Reed switch will close.
4.
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