20
Troubleshooting –
Nautilus MX3-500HE
Problem
Cause
Solution
Machine not
Building circuit breaker tripped.
Reset breakers or move cords to other outlets
turning on -
Faulty power cord
Replace cord
No power
Faulty switches or internal wiring
Check wiring & test switches - Repair as needed *
Solution
Pump
Building circuit breaker tripped.
Reset breakers or move cords to other outlets
not running
Pump circuit breaker tripped
Reset breaker – Check available circuit power & pump
Faulty power cord
Replace cord
Faulty switches or internal wiring
Check wiring & test switches - Repair as needed *
Pump motor breaker tripped
Push in reset button on pump motor &/or external breaker
Pump motor faulty
Replace pump motor (PT066)
Pump seized - trips breaker
Repair or replace pump head & bearing (PT065) - Check
motor and/or replace complete pump & motor assy. (AP52)
Low Solution
Jets too large for pressure desired
Check jets size & flow rates use smaller jets or lower
pressure
Pressure
and/or
Jets worn allowing too much flow
Replace jets
Pulsation
Solution inlet filter plugged
Clean or replace filter
Hose from solution tank restricted
Repair or replace hose
Pump intake hose or fittings
leaking
Repair or replace hose. Tighten clamps or replace fittings
Pressure regulator sticking
Lube o-rings on regulator piston – PAGE 33
Pressure regulator faulty
Repair or replace pressure regulator (PT021)
Filter screen or jets plugged on
tool
Clean out filter or jets
Solution tank empty
Add water to tank - Check & repair auto fill assembly
Pump not primed
Perform pump priming procedure
Pump faulty
Repair or replace pump (PT065 or AP52)
Tool valve faulty
Repair or replace valve
Quick connects or hoses restricted Clean out or replace quick connects and/or hoses
Can't connect
Pressure in lines
Release pressure
solution hose
Quick connects faulty
Replace quick connects (AH101B, AH102B)
to machine
Wrong style/size quick connects
Replace quick connects to match connects on machine
*
: 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.
Section
2
Troubleshooting
Summary of Contents for Nautilus MX3-500HE
Page 1: ...1 LMANN18 REVISED 01 29 2015 MX3 500HE Nautilus Operating Manual ...
Page 39: ...39 OPTIONAL AUTO FILL FLOAT VALVE ASSEMBLY NM5740 ...
Page 40: ...40 Optional Pump Out Pump AP37F PARTS ASSEMBLY ...
Page 41: ...41 2 4 4 6 7 10 11 3 8 9 3 5 1 8 9 8 9 2 39 12 8 9 ...
Page 48: ...48 2 39 1 72 73 73 67 9 30 31 82 83 2 83 82 84 INSIDE SOLUTION TANK BOTTOM VIEW SOLUTION TANK ...
Page 50: ...50 96 91 97 9 88 111 94 105 93 OPTIONAL PUMP OUT CONNECTIONS 99 95 118 ...
Page 51: ...51 FLOW 81 92 91 99 96 9 97 105 13 14A 14 95 OPTIONAL PUMP OUT PARTS 1 39 97 9 118 ...
Page 52: ...52 HEATER PARTS 42 42A 98 114 110 71 113 114 ...