Nautilus HYDRO-FORCE MX500HE Operating Manual page 21

Problem Cause
Pump-out Building circuit breaker tripped.
not working Faulty power cord
Faulty switches or internal wiring
Pump-out pump faulty
Pump-out filter clogged
Discharge hose restricted
Pump-out pump clogged
Vacuum Building circuit breaker tripped.
Motor Faulty power cord
not running Faulty switches or internal wiring
Vacuum motor faulty
Loss of Vacuum motor faulty
Vacuum Vacuum motor gasket damaged
Recovery tank lid gasket damaged
Drain valve open
Drain valve leaking
Vacuum motor hoses loose /
leaking
Vacuum Valve in wrong Position
Vacuums not connected properly
Vacuum hose or tool clogged
Vacuum hoses or cuffs leaking
Recovery tank full
Float shutoff filter clogged
Float stuck in float shutoff
Pump-out Pump faulty
Recovery tank damaged
Chemical not Solution tank not filling
feeding Chemical hose restricted
Filter screen plugged
Low Incoming Water Pressure
Wrong size metering tip
Chemical proportioner faulty
Check valve in filter faulty
Tool won't Jets clogged
spray - low or Inline filter clogged
uneven spray Jets worn
Jets not aligned properly
Tool valve faulty
Quick connects or hoses restricted
* 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
Check wiring & test switch - Repair as needed * (NM5714)
Replace pump-out pump (AP37F)
Clean pump-out filter - Keep recovery tank clean –
Use Hydro-Filter AC10
Un-kink, clean out or replace hose
Remove and clean out pump
Reset breakers or move cords to other outlets
Replace cord
Check wiring & test switches - Repair as needed *
Replace vacuum motor (AV012)
Replace vacuum motor (AV012)
Replace gasket (PA010A)
Replace lid or gasket (1650-5695 or 1663-5397)
Close valve
Repair or replace drain valve (PEA11)
Reconnect or replace vacuum motor hoses
Check Vacuum Gate Valve Position. – PAGE 8
See vacuum connection instructions – PAGE 8
Clean out vacuum hoses and tool
Replace vacuum hoses, cuffs & connectors as needed
Drain tank
Clean float shutoff filter
Repair or replace float shutoff
Repair or replace pump out pump (AP37F)
Replace recovery tank
Check & repair auto fill assembly
Un-kink, shorten, clean out or replace hose
Clean or replace filter (PDE100-11P)
Move bottle & shorten chemical hose to improve draw –
Find other water source.
Change metering tip
Replace chemical proportioner (PDE61-22-3)
Replace filter (PDE100-11P)
Clean out or replace jets
Clean out or replace filter
Replace jets
Re-align jets
Repair or replace valve
Clean out or replace quick connects and/or hoses
: To reduce the risk of fire electrical shock or injury repairs to wiring should only be
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