Problem
|
Cause
|
Solution
|
|
There is
spitting from the gun. |
1. The
fluid supply is low or empty. |
Refill the
supply container. |
|
2. Air
entrapped in the fluid pump of the hose. |
Check for
loose connections on the siphon assembly, tighten, then reprime pump. |
|
Paint leaks
into the wet cup. |
1. The wet
cup is loose. |
Tighten
just enough to stop leakage. |
|
|
2. The
throat packings are worn or damaged. |
Replace the
packings. |
|
|
3. Piston
rod worn. |
Replace
piston rod. |
|
The motor
operates, but the paint pump doesn't. |
1. The
pressure setting is too low. |
Increase
the pressure. |
|
|
2. The
displacement is seized by dried paint. |
Service the
pump. |
|
The motor
and displacement pump operates, but paint pressure is too low, or
none. |
1. The
pressure setting is too low. |
Increase
the pressure. |
|
|
2. The tip
or gun filter is clogged. |
Remove the
tip and/or filter and clean them. |
|
|
3. Tip is
worn. |
Replace
tip. |
|
|
4. The
fluid displacement pump filter (if used) is clogged. |
Clean the
filter. |
|
|
5. There is
a large pressure drop in the fluid hose. |
Use a
larger diameter hose. |
|
The
displacement pump operates, but the output is too low on the down
stroke or both strokes. |
1. The
lower check valve ball is not seating properly. |
Service the
lower check valve ball check. |
|
The
displacement operates, but the output is too low on the upstroke. |
1. The
upper check valve ball is not seating properly. |
Service the
upper check ball valve. |
|
|
2. The
lower packings are worn or damaged. |
Replace the
packings. |
|
The
displacement pump operates but the pressure is too low. |
1. Tip too
large. |
Use smaller
tip. |
|
|
2. Long
extension cord causes power drop. |
Use less
extension cord. |
|
Motor
stops. |
|
Reset
overload switch. |
|
The
displacement pump operates but the unit does not prime. |
1. Upper or
lower ball is stuck or obstructed. |
Service
upper and lower check ball valve. |
|
|
2. Unit
hose air leak (bubbles blowing out bypass hose.) |
Inspect
suction hose for holes, if so equipped. Ensure suction nut is tight
and lower ball cage O-ring is not worn. |
|
Unit does
not run. |
1. Thermal
breaker tripped. |
Press
re-set button |
|
|
2.
Electrical failure |
Contact
local Airlessco Service Center. |
|
Machine
does not start. |
1. Control
Settings |
Step 1.
Ensure the the ON-OFF toggle switch is in the "ON" position and that
the Pressure Control Knob is fully CW (maximum pressure). Also check
that the unit is plugged in.
Step 2.
Remove the electrical cover on the bottom of the machine. Check if the
green power light on the board is lit. If the the light is "OFF",
proceed to Step 3. If the light is "ON", go to step 7. |
|
|
Power
Source |
Use a
multi-meter to check |
|
Unit will
not prime. |
1. Dried
out piston packings and stuck ball valves. |
Remove
siphon tube and feel lower ball check to be sure it is free to move
off its seat. Place full cup of paint thinner over end of fluid
section and turn on pump. |
|
|
2. Pump
inlet screen plugged or air in pump or hose. |
Remove and
clean. |
|
|
|
Hold gun
trigger in open position and run unit about 10 seconds until air is
purged. |
|
|
|
Check for
siphon tube leak. |
|
|
3. Packings
worn. |
Replace. |
|
|
4. Fluid
too viscous. |
Prime pump
with compatible solvent. Bring up to pressure, carefully remove pump
from solvent container and immerse inlet tube into heavy material to
be sprayed. With nozzle tip removed, trigger gun until heavy material
appears aat gun. Replace nozzle tip and you're ready to spray. |
|
|
5. Siphon
tube clogged. |
Remove and
clean. |
|
|
6. Siphon
tube air leak. |
Check
connection and seal. |
|
|
7. Clogged
tip. |
Relieve
pressure, remove tip and clean. |
|
Unit will
not build or maintain pressure. |
1. Pressure
adjusting knob not properly set. |
Adjust to
increase pressure. |
|
|
2. Pump
inlet strainer dirty. |
Clean or
temporarily remove. |
|
|
3. Valve
balls or seats worn or dirty. |
Replace or
clean. |
|
|
4.Air in
pump or hose. |
Hold gun
trigger in open position and run about 10 seconds until air is purged. |
|
|
|
Check for
siphon tube leak. |
|
|
5. Packings
worn. |
Replace. |
|
|
6. Worn
spray tip. |
Replace. |
|
|
7. Internal
leakage. |
With gun
trigger closed, allow unit to pump up to pressure and shut off. If
pump momentarily starts, internal leak is indicated and fluid section
rebuild is necessary. |
|
|
8. Fluid
leak. |
Check for
external leaks including hydraulic fittings attached to pressure
control housing. |
|
|
9. Fluid
too viscous. |
Consult
manufacturers recommendations on paint container label. |
|
|
10. Too
large a spray tip. |
Change tip. |
|
Fluid
leakage out relief hole at pressure control. |
1. Worn "O"
Rings. |
Repack or
replace transducer. |
|
Fluid
leakage at upper end or fluid section. |
1. Upper
packings. |
Relieve
pressure and tighten packing take up nut or replace packings. |
|
|
2. Piston
rod worn |
Replace. |
|
Bad spray
pattern. |
1. Too
large a tip size |
Change to a
smaller tip size |
|
|
2. Pressure
adjustment wrong. |
Adjust
pressure control knob. |
|
|
3.
Insufficient fluid delivery. |
Clean all
strainers and filters in system. |
|
|
4. Fluid
too viscous. |
Add solvent
to fluid according to manufactures recommendations. |
|
Unit lacks
power. |
Pressure
adjustment low. |
Increase. |
|
|
Improper
voltage supply. |
Reconnect
input voltage for 115 VAC |
|
Blown fuses
at pump. |
1.
Excessive pressure. |
Have
service center recalibrate the pressure control. |
|
|
2.
Excessive extension cord length or improper wire gauge. |
Use #12
gauge wire or larger up to maximum of 200 feet. For additional length,
more airless hose may be used. |
|
Unit will
not prime. |
1. Dried
out packings or stuck valve balls. |
Remove
siphon tube and feel lower ball check to be sure it is free to move
off its seat. Place full cup of paint thinner over end of fluid
section and turn on pump. |
|
|
2. Stuck
valve balls. |
|
|
|
3. Pump
inlet screen plugged. |
Remove and
clean. |
|
|
4. Air in
pump or hose. |
Hold gun
trigger in open position and run unit about 10 seconds until air is
purged. |
|
|
|
Check for
siphon tube leak. |
|
|
5. Packings
worn. |
Replace. |
|
|
6. Fluid
too viscous. |
Prime pump
with compatible solvent. Bring up to pressure, carefully remove pump
from solvent container and immerse inlet tube into heavy to be
sprayed. With nozzle tip removed, trigger gun until heavy material
appears at gun. Replace nozzle tip and you're ready to spray. |
|
|
7. Siphon
tube clogged. |
Remove and
clean. |
|
|
8. Siphon
tube air leak. |
Check
connection and seal. |
|
|
9. Clogged
tip. |
Relieve
pressure, remove tip and clean. |
|
Unit will
not build or maintain pressure. |
1. Pressure
adjusting knob not properly set. |
Adjust to
increase pressure. |
|
|
2. Pump
inlet strainer dirty. |
Clean or
temporarily remove. |
|
|
3. Valve
balls or seats worn or dirty. |
Replace or
clean. |
|
|
4. Air in
pump or hose. |
Hold gun
trigger in open position and run until air is purged. |
|
|
5. Packings
worn. |
Replace. |
|
|
6. Worn
spray tip. |
Replace. |
|
|
7. Internal
leakage. |
With gun
trigger closed, allow unit to pump up to pressure and shut off. If
pump momentarily starts, internal leak is indicated and fluid section
rebuild is necessary. |
|
Paint will
not shut off at spray tip of airless gun. |
1. Seat in
the gun dirty. |
Trigger gun
several times under pressure. |
|
|
2. Needle
stop nut too tight. |
Loosen the
stop-nut. |
|
|
3. Worn
valve assembly. |
Replace
valve assembly. |
|
Airless
pump motor doesn't turn over. |
1. No
power. |
Check house
electrical fuse (use at least a 15 amp). |
|
|
2. Thermal
overload switch. |
|
|
|
3. Unit
under pressure. |
Turn bypass
valve to prime. |
|
|
4.
Defective switch or wiring. |
Replace
switch, check wiring; replace if necessary. |
|
Gun will
not spray. |
1. Trigger
safety on. |
Disengage
trigger stop. |
|
|
2. Inline
filter clogged. |
Clean or
replace mesh filter. |
|
|
3.
Adjustable tip clogged. |
Turn knob
counterclockwise. |
|
Spray
pattern has "tails" or fingering. |
1. Pressure
too low. |
Increase
pressure at pump. |
|
|
2. Material
too thick. |
Thin per
manufacturer's recommendation. |
|
|
3. Tip
adjusted too wide. |
Reduce
pattern size. |
|
|
4. Spray
tip worn. |
Install new
tip. |
|
Distorted pattern |
1.
Plugged or worn tip |
Clean or
replace tip. |
|
Pump draws
up paint but the pressure does not build up. |
1. Bypass
valve in "prime" position. |
Turn valve
to spray. |
|
|
2. Air in
hydraulic system. |
Bleed air
from system. |
|
|
3. Pressure
valve not adjusted or worn. |
|
|
|
4. Inlet
valve worn. |
Replace. |
|
|
5. Low oil
level. |
Check oil. |
|
|
6. Bypass
valve clogged or worn. |
Clean or
replace. |
|
Pump draws
up paint, pressure builds but drops when the gun is triggered. |
1. Material
too thick. |
Thin paint
per manufacturer's recommendation. |
|
|
2. Bypass
valve not shutting off. |
Clean or
replace. |
|
|
3. Air in
the paint. |
Check
suction hose & connections. |
|
|
4. Air in
hydraulics. |
Bleed. |
|
|
5. Tip
orifice too large or worn. |
Adjust tip
or replace strainer. |
|
|
6. Suction
strainer clogged. |
Clean and
replace. |
|
|
7. Inlet or
outlet valve worn. |
Replace. |
|
Spray tip
keeps clogging. |
1.
Contamination in paint. |
Strain
paint. Clean or replace filters. |
|
|
2. Paint
dried in the spray tip. |
Keep tip
moist when not spraying. |
|
|
|
Replace tip
with adjustable tip. |
|
Sprayer
does not start up. |
1. Sprayer
not plugged in. |
Plug in. |
|
|
2. On-Off
switch Off. |
Flip switch
On. |
|
|
3. Blown
fuse in circuit. |
Replace
fuse. |
|
|
4. Low
voltage at wall plug. |
Test power
supply voltage. |
|
|
5. Bad
On-Off switch. |
Take to
authorized service center. |
|
|
6. Damaged
motor cord or extension cord, or voltage too low. |
|
|
|
7. Motor
problem. |
Take to
authorized service center. |
|
Sprayer
starts up but does not draw in paint. |
1. No paint
or suction tube not totally immersed in paint. |
Add more
paint. Immerse suction tube in paint. |
|
|
2. Suction
filter clogged. |
Clean
filter screen. |
|
|
3. Suction
tube loose at inlet valve. |
Clean
connection and tighten. |
|
|
4. Inlet
valve stuck. |
Push valve
with a pencil. |
|
|
5. Outlet
valve is stuck, dirty or has worn out parts. |
Push the
push button valve on the block to loosen or remove outlet and replace. |
|
|
6. Bypass
knob in "Spray" position. |
Turn bypass
knob to "Prime". |
|
|
7. Pressure
knob in "Low" setting. |
Turn
pressure knob to "High". |
|
|
8. Air in
the hydraulic system. |
Bleed air
out of the unit. |
|
|
9. Bypass
Valve plugged. |
Remove to
clean or replace. Take to service center. |
|
|
10. Suction
tube problem. |
Check for
air leaks. Replace if necessary. |
|
|
11. Inlet
valve damage (neck). |
|
|
No sound. |
1. Not
plugged in. |
Check plug
& extension cord. Check motor switch |
|
|
2. House
circuit breaker. |
Check
breaker. Try another electrical outlet. |
|
|
3. Thermal
overload switch tripped. |
Feel motor
case. If hot, turn "off". Let cool & check motor case before starting. |
|
Hums, but
does not start or run correctly. |
1. Pump
under pressure. |
Turn bypass
valve to prime. |
|
|
2.
Incorrect voltage. |
Check house
voltage. |
|
|
3.
Extension cord. |
Maximum
length 100' - 10 ga. |
|
|
4.
Condenser. |
Replace.
See service center. |
|
Will not
prime, has vacuum. |
1.Suction
filter clogged. |
Clean
filter or replace. |
|
|
2. Air leak
in suction set. |
Check
connections. Clean and tighten. |
|
|
3. Suction
head not submerged. |
Check. Add
more paint. |
|
|
4. Paint
too thick. |
Thin as
recommended. |
|
No Vacuum. |
1. Bypass
knob on "spray". |
Turn
counterclockwise. |
|
|
2. Pressure
knob on "low". |
Turn
pressure knob clockwise. |
|
|
3. Inlet
valve stuck. |
Remove
suction hose. Press inlet valve with finger to free. |
|
|
4. Outlet
valve stuck. |
Pour small
amount of liquid in inlet valve to prime. If necessary, remove outlet
plug and free the outlet ball. |
|
|
5. Air in
oil system. |
Check oil
level & bleed system. |
|
|
6. Inlet
valve worn. |
Check and
replace per manual. |
|
|
7. Outlet
valve worn. |
Check and
replace per manual. |
|
|
8. Oil in
the paint? |
Replace
diaphragm per manual. |
|
Primes, but
no pressure. |
1. Suction
filter. |
Clean
filter or replace. |
|
|
2. Bypass
valve on prime. |
Turn knob
clockwise to "spray". |
|
|
3. Bypass
vale leaking. |
Check for
flow out o |
|
|
4.Air in
oil system. |
Check oil
and bleed system. |
|
Low
pressure. |
1. Gun
filter clogged. |
Clean or
replace. |
|
|
2. Suction
filter clogged. |
Clean or
replace. |
|
|
3. Paint
too thick. |
Thin as
recommended. |
|
|
4. Outlet
valve worn. |
Check &
replace. |
|
|
5. Pressure
valve worn. |
Reset
pressure or replace. |
|
Good
pressure, but no spray. |
1. Gun
filter. |
Clean or
replace. |
|
|
2. Tip
clogged. |
Remove and
clean. |
|
Gun. |
|
|
|
Drips paint
with trigger released. |
1. Dirt in
gun valve. |
Disassemble
& clean. |
|
|
2. Worn gun
valve. |
Replace per
gun manual. |
|
Drips while
spraying. |
1. Spray
tip worn. |
Replace. |
|
Sprays
uneven. |
1. Dried
paint in spray tip. |
Remove and
clean. |
|
|
2. Spray
tip worn. |
Replace. |
|
Electric
shock while spraying. |
1. Pump not
grounded. |
Check
extension cord and house circuit. |
|
|
2. Metal
object being painted not grounded. |
Attach
ground wire to object. |
|
Material
will not shut off at spray tip of Airless Gun. |
1. Ball or
seat in gun dirty. |
Try
triggering gun several times while under pressure. |
|
|
2. Diffuser
seat worn. |
Replace
Diffuser assembly. |
|
|
3. Needle
assembly worn. |
Replace if
necessary. |
|
Airless gun
will not spray. |
1. No
pressure at gun. |
Check pump
for proper operation, check filter and strainer (clogged). |
|
|
2. Spay tip
clogged. |
Clean tip
with pointed needle and blow with compressed air. |
|
Airless gun
has tails in spray pattern. |
1. Material
pressure too low. |
Increase
pressure at unit. |
|
|
2. Material
too thick. |
Thin paint
per manufacturer's recommendation. |
|
|
3. Spray
tip worn. |
Replace. |
|
Airless
pump motor doesn't turn over. |
1. No
power. |
Check
electrical fuse. |
|
|
2.
Defective switch or wiring. |
Replace
switch, check wiring; replace if necessary. |
|
|
3. Unit
under pressure. |
Turn
combination valve counterclockwise to positive stop. |
|
|
4. If the
above problems cannot be corrected, the motor could be defective. |
Replace
motor if necessary. |
|
Airless
pump does not draw paint. |
1. Suction
tube not totally immersed in paint. |
Add more
paint. |
|
|
2. Suction
tube loose and draws in air. |
Tighten
clamp and fittings at inlet valve. |
|
|
3. Suction
tube damaged. |
Replace if
necessary. |
|
|
4. Suction
strainer clogged. |
Clean or
replace. |
|
|
5. Air in
hydraulic system due to fluid level low in crankcase or due to
shipment. |
Add 10W-30
oil to crankcase. Bleed air from system. |
|
|
6.
|