3
WARNING: BEFORE SERVICING PUMP, TURN OFF PUMP AND DRAIN
WATER FROM SYSTEM!!
STEP 5
Use 1/2” (13mm) I.D. flexible hose (preferably braided or reinforced). Use hose clamps on the slip-on barb hose
connectors.
STEP 6
Install a 1/2” (13mm) in line strainer #01740002 in accessible location between shower drain pan and pump inlet. This
strainer or equivalent is required for pump warranty to be valid.
Black
Red
Fuse
Switch
Battery
WIRING
STEP 1
Use 14 gauge stranded wire to 20’ (6.1m), 12 gauge to
50’ (15.2m), from power source.
STEP 2
Use a 10-15 amp rated (lighted) on-off switch on the (+)
positive (red) motor lead.
STEP 3
Install 10 amp fuse protection on the positive lead for the
-143 model, use a 7 amp fuse for the -343 model.
TROUBLESHOOTING
Failure to Prime -
Motor operates, but no pump
discharge
• Restricted intake or discharge line
• Air leak in intake line
• Debris in pump
• Punctured pump diaphragm (pump leaks)
• Crack in pump housing
Motor Fails to Turn On
• Blown fuse
• Loose wiring connection
• Pump circuit has no power
• Defective motor
Low Flow and Pressure
• Air leak at pump intake
• Accumulation of debris inside pump and plumbing
• Worn pump bearing (excessive noise)
• Punctured pump diaphragm (pump leaks)
• Defective motor
Pulsating Flow
• Restricted pump delivery. Check discharge lines,
fittings and valves for clogging or undersizing.
Includes items 1 thru 4
Quite often when a pump is worn or defective the one failed component has overburdened others. To avoid frequent
aggravating repairs, Flojet offers service kit assemblies making repairs as quick and easy as possible.
