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Problem 

Cause 

Solution 

Dual Circuit 

Cords on the same circuit 

Move one cord to outlet on different circuit 

Indicator 

No voltage from one/ both outlets 

Check circuit breakers – Reset breakers or move cords 

Not Lighted 

Light Bad 

Replace Light 

Dual Circuit Indicator Bad 

Replace indicator 

One/Both Outlets Wired wrong 

If hot & neutral sides switched on outlet, machine will work, 
but light will not turn ON. 

Pump-out 

Building circuit breaker tripped. 

Reset breakers or move cords to other outlets 

not working 

Faulty power cord 

Replace cord (

1696-6412

Faulty switches or internal wiring 

Check wiring & test switches - Repair as needed * 
(NM5714) 

Pump-out pump faulty 

Replace pump-out pump (AP37) 

Pump-out float switch faulty 

Replace Float Switch 

Float Switch movement restricted 

Clean debris off of Float Switch or adjust float 

Discharge hose restricted 

Un-kink, clean out or replace hose 

Pump-out pump clogged 

Remove and clean out pump 

Vacuum 

Building circuit breaker tripped. 

Reset breakers or move cords to other outlets 

Motor 

Faulty power cord 

Replace cord (

1696-6412

not running 

Faulty switches or internal wiring 

Check wiring & test switches - Repair as needed * 

Vacuum motor faulty 

Replace vacuum motor (AV14) 

Loss of 

Vacuum motor faulty 

Replace vacuum motor (AV14) 

Vacuum 

Vacuum motor gasket damaged 

Replace gasket (PA010) 

Recovery tank lid gasket damaged  Replace gasket (NM5718) 
Drain valve open 

Close valve 

Drain valve leaking 

Repair or replace drain valve (PEA11) 

Vacuum motor hoses loose / 
leaking 

Reconnect or replace vacuum motor hoses 

Vacuum Valve in wrong Position 

Check Vacuum Gate Valve Position. – PAGE 8 

Vacuums not connected properly 

See vacuum connection instructions – PAGE 8 

Vacuum hose or tool clogged 

Clean out vacuum hoses and tool 

Vacuum hoses or cuffs leaking 

Replace vacuum hoses, cuffs & connectors as needed 

Recovery tank full 

Drain tank 

Float shutoff filter clogged 

Clean float shutoff filter 

Float stuck in float shutoff 

Repair or replace float shutoff 

Pump-out Pump faulty 

Repair or replace pump out pump (AP37) 

Recovery tank damaged 

Replace recovery tank 

Chemical not 

Solution tank not filling 

Check & repair auto fill assembly 

feeding 

Chemical hose restricted 

Un-kink, shorten, clean out or replace hose 

Filter screen plugged 

Clean or replace filter (PDE100-11P) 

Low Incoming Water Pressure 

Move bottle & shorten chemical hose to improve draw – 
Find other water source. 

Wrong size metering tip 

Change metering tip 

Chemical proportioner faulty 

Replace chemical proportioner (PDE61-22-3) 

Check valve in filter faulty 

Replace filter (PDE100-11P) 

*

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.

Summary of Contents for Nautilus MX3-500RP

Page 1: ... LMANN05 Revised 03 12 2019 Nautilus MX3 500RP Operating Manual 03 07 2019 03 07 2019 03 07 2019 03 07 2019 03 07 2019 03 07 2019 ...

Page 2: ...o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o ...

Page 3: ...3 Aramsco ...

Page 4: ...4 ...

Page 5: ...5 1696 6412 10 1696 6412 10 ...

Page 6: ...6 ...

Page 7: ...7 o ...

Page 8: ...8 o o ...

Page 9: ...9 Power Cord 1696 6412 25 10 gauge M F Plugs Cord 1 Cord 2 Dual Circuit Indicator Light ...

Page 10: ...10 Proportioning Valve Chemical Feed Hose Float Hanger Float Pour appropriate amount of hot water into solution tank Add appropriate amount of chemical to water in solution tank Float Valve ...

Page 11: ...11 Metering Tip Kit PDE001 Turquoise Tip Dilution 256 1 Red Tip Dilution 85 1 Proportioning Valve ...

Page 12: ...Solution Inlet Male quick connect on the front of the machine 3 8 id X 25 with F Quick Connect F Garden Hose Fitting Float Valve Float Bottle Connect the Auto Fill Water Supply Hose to a faucet and turn on the water Chemical Feed Hose Float Hanger Hook ...

Page 13: ... the male end of the HP Solution Hose Assembly to the female solution outlet fitting on the machine Connect the female end to the cleaning tool HP Solution Hose Assembly AH79D 1 4 id X 25 with M F Quick Connects ...

Page 14: ...14 ...

Page 15: ... o Connect the Female Garden Hose Fitting end of the Pump out Hose to the outlet fitting on the back of the recovery tank Place the other end of the pump out hose in a sanitary drain Float Shutoff Assembly ...

Page 16: ... o o o o Pressure gauge Regulator Unloader To increase the solution pressure turn the regulator unloader knob clockwise To decrease the solution pressure turn the regulator unloader knob counter clockwise ...

Page 17: ...17 o o o o ...

Page 18: ...18 ...

Page 19: ... Pulsation 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 shaft PAGE 34 Pressure regulator faulty Repair or replace pressure regulator unloader PT017 Filter screen or jets plugged on tool Clean out filter or jets Solution tank empty Add wat...

Page 20: ...very tank lid gasket damaged Replace gasket NM5718 Drain valve open Close valve Drain valve leaking Repair or replace drain valve PEA11 Vacuum motor hoses loose leaking Reconnect or replace vacuum motor hoses Vacuum Valve in wrong Position Check Vacuum Gate Valve Position PAGE 8 Vacuums not connected properly See vacuum connection instructions PAGE 8 Vacuum hose or tool clogged Clean out vacuum ho...

Page 21: ... connects AH101B AH102B Solution tank Float too heavy Filled with water Replace float overflowing Float chain tangled Make sure float chain free hanging properly Float too high Adjust chain to set float at proper level Water Pressure too high Use pressure regulator on auto fill hose Float valve faulty Repair or replace float valve Chemical Jug Foot valve in Filter stuck Clean out foot valve and fi...

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Page 27: ...27 o o ...

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Page 29: ...29 Pour 2 or 3 gallons of clean water into Solution Tank ...

Page 30: ...30 SOLUTION FILTER PP14 806504 Inside View MX3 500RP Solution Tank Vacuum acid solution out of Solution Tank ...

Page 31: ...31 Place Chemical Feed Hose into Rinse Solution Connect Auto Fill Water Supply Hose to machine and faucet Vacuum water out of Solution Tank Drain water from Recovery Tank ...

Page 32: ...TAINER BRASS KNOB ASSEMBLY BLACK PLASTIC KNOB PT017KNOB SPRING SPRING PLATE BODY SPINDLE PISTON PISTON RETAINER LUBRICATE PISTON O RING WASHER LUBRICATE SPINDLE O RING WASHER RETAINER PISTON SPINDLE ASSEMBLY PISTON ...

Page 33: ...g Unless damaged or leaking between tank and flange the flange fitting does not have to be removed FLANGE FITTING GASKET NM3019 VALVE BODY OUTLET ADAPTER DRAIN VALVE PEA11 Clean debris from slot in bottom of valve body Valve slide must be able to slide to bottom ...

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Page 35: ...35 KIT A PT054 KIT B PT055 KIT C PT056 ...

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