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Airless Sprayer
Problem
Electric motor won't run
Sprayer won't prime
Insufficient material flow
Sprayer will not maintain
pressure
Not enough pressure
Excessive surge at spray gun
Paint leaks into oil cup
Airless Gun
Problem
Spitting gun
Gun will not shut off
Gun does not spray

Troubleshooting

Cause
1. Unit unplugged or circuit fuse blown
2. Pressure setting too low
3. Electric motor burned out
4. Switch defective
5. Circuit breaker on sprayer tripped
1. Air in line
2. Insufficient pressure
1. No paint
2. Siphon strainer clogged
3. Sprayer/gun filter clogged
4. Sprayer will not prime, material too
heavy
1. Air leak in system
2. Air leak in siphon tube
3. Inlet valve not seating
4. Worn packings
5. Dirty or worn ball valves
6. Worn valve seats
7. Worn prime valve
1. Pressure setting too low
2. Plugged filters
3. Spray tip too big or worn
1. Wrong type of hose
2. Spray tip too big or worn
3. Excessive pressure
1. Worn out packings
Cause
1. Air in system
2. Dirty gun
3. Needle assembly out of adjustment
4. Broken or chipped seat
1. Worn or broken needle & seat
2. Needle assembly out of adjustment
3. Dirty gun
1. No paint
2. Plugged filter or tip
3. Broken needle in gun
Solution
1. Check
2. Increase
3. Replace
4. Replace
5. Reset the breaker
1. Check siphon tube o-ring and/or let paint
circulate in prime position
2. Increase pressure
1. Check supply
2. Clean
3. Clean & replace
4. Thin material
1. Tighten connections
2. Tighten, check for leaks
3. Service or clean
4. Replace
5. Clean or replace
6. Reverse
7. Replace
1. Increase
2. Clean or replace
3. Change or replace
1. Replace with a minimum 50' grounded
nylon braid high pressure hose
2. Change or replace
3. Decrease pressure and engine speed
1. Replace
Solution
1. Inspect connections for air leaks
2. Disassemble and clean
3. Inspect and adjust
4. Inspect and replace
1. Replace
2. Adjust
3. Clean
1. Check fluid supply
2. Clean
3. Replace
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