Tripped thermal
protector/blown fuse Check
fuse. If motor is overheated, allow it
to cool down prior to restart. |
Faulty wire connection or
power source Check
battery/power supply, polarity, main switch and wiring |
Pressure
switch controller malfunctioning Replace
controller (P/N 26-158 without fuse) (P/N
26-158-01 with fuse) |
Motor
malfunctioning Replace
pump |
Pump and/or motor is frozen Thaw
pump and system and check for damage.
The pump/motor may become damaged when a frozen pump is started. |
Water
tank empty Fill
up tank |
Leak on inlet side of pump Check
tightness of hose connections at pump, filter and tank. Check valves at inlet side |
Debris under valves Flush
pump (in nominal flow direction) with tap water at maximum flow
possible. |
Perforated
diaphragm Replace
diaphragm kit (P/N L.H. 5503-4V15) |
Inlet or outlet plumbing restricted Check
plumbing. Water should free flow from
tank at 2 GPM minimum. |
Hydraulic pulsations Install
pulsation dampener (P/N 25-174 with elbow
fittings) (P/N
25-175 with straight fittings) |
Restriction on outlet side
of pump, Check
inline filter, if any resulting
in too much back pressure |
Leak on outlet side of
pump Check
tightness of hose selections, check hose for possible damage |
Fill valve bypassing to
tank Replace
fill valve |
Debris under valves Flush
pump in nominal flow direction. If
necessary, disassemble and clean valves |
|
5. PUMP LEAKS
Cause Solution
Perforated diaphragm Replace diaphragm
kit (P/N L.H. 5503-4V15) |
Inlet/outlet fittings leak Replace O-rings
and/or fittings |
Leak on inlet side of pump
Check
tightness of hose connections. Check
inlet hose, filter, and valves for possible damage |
Air in pump Purge
air (refer to Aquajet
installation guide) |
Leak on outlet side of
pump Check
tightness of hose connections, check hose for possible damage |
Water
tank empty Fill
up tank |
Pressure
switch controller malfunctioning Replace
controller (P/N
26-158 without fuse) (P/N
26-158-01 with fuse) |
Low
voltage to pump Change
battery/power supply.
Check wire gauge (refer to Aquajet
installation
guide) |
|
Leak on inlet side of pump Check
tightness of hose connections, check hose for possible damage |
Air in pump Purge
air (refer to Aquajet
installation guide) |
Low voltage to pump Change
battery/power supply. Check wire gauge
(refer to Aquajet installation guide) |
Debris under valves Flush
pump and/or disassemble and clean valves |
Motor
malfunction Change
pump |
Pump is plumbed directly
to rigid tubing Install
pulsation dampener (P/N
25-174 with elbow fittings)
(P/N 25-175 with straight fittings) |
Restrictive inlet, pump is cavitating Check
plumbing. Water should free flow from
tank at 2 GPM minimum. |
Pump
head loose on motor Tighten
screws |
Pump
mounting is loose Tighten
screws |
Pump
mounting is too rigid Use
flexible tubing and make sure
the dampening rubber feet
are used |
Defective
motor/drive Replace
pump |