Troubleshooting - Nautilus MX3-500 Operating Manual

Troubleshooting

Troubleshooting –
Nautilus MX3-500
Problem Cause
Machine not Building circuit breaker tripped.
turning on - Faulty power cord
No power Faulty switches or internal wiring
Solution
Pump Building circuit breaker tripped.
not running Pump circuit breaker tripped
Faulty power cord
Faulty switches or internal wiring
Pump motor breaker tripped
Pump motor faulty
Pump seized - trips breaker
Low Solution Jets too large for pressure desired
Pressure Jets worn allowing too much flow
And / or Solution inlet filter plugged
Pulsation Hose from solution tank restricted
Pump intake hose or fittings
leaking
Pressure regulator sticking
Pressure regulator faulty
Filter screen or jets plugged on
tool
Solution tank empty
Pump not primed
Priming Valve Stuck Open
Pump faulty
Pressure Gauge faulty
Tool valve faulty
Quick connects or hoses restricted
Can't connect Pressure in lines
solution hose Quick connects faulty
to machine Wrong style/size quick connects
* To reduce the risk of fire electrical shock or injury repairs to wiring should only be performed by
experienced service technicians.
If you are not experienced in checking electrical wiring contact your nearest authorized service
center to perform tests and repairs to wiring and switches.
Solution
Reset breakers or move cords to other outlets
Replace cord (AX33)
Check wiring & test switches - Repair as needed *
Reset breakers or move cords to other outlets
Reset breaker – Check available circuit power & pump
Replace cord (AX33)
Check wiring & test switches - Repair as needed *
Push in reset button on pump motor &/or external breaker
Replace pump motor (PT066)
Repair or replace pump head & bearing (PT065) - Check
motor and/or replace complete pump & motor assy. (AP52)
Check jets size & flow rates use smaller jets or lower
pressure
Replace jets
Clean or replace filter
Repair or replace hose
Repair or replace hose. Tighten clamps or replace fittings
Lube o-rings on regulator shaft – PAGE 33
Repair or replace pressure regulator / unloader (PT017)
Clean out filter or jets
Add water to tank - Check & repair auto fill assembly
Perform pump priming procedure
Repair or replace the Priming Valve
Repair or replace pump (PT065 or AP52)
Replace gauge (PT063)
Repair or replace valve
Clean out or replace quick connects and/or hoses
Release pressure
Replace quick connects (AH101B, AH102B)
Replace quick connects to match connects on machine
20
Section
2