AIRLESSCO SP200 - Manual (Page 21)

Advanced Troubleshooting
3A0997F 21
General Problem: Erratic Motor Operation
Specific Problem Cause Solution
Sprayer quits after running for
5 to 10 minutes Building circuit is overloaded. Remove other loads from building circuit or find
another circuit that has less load. See Ground-
ing and Electric Requirements, page 7.
Electrical outlet supplying
wrong voltage. Try another outlet. Check electric supply with volt
meter. Meter must read 85 to 130V AC. If voltage
is too high, do not use outlet until corrected.
Also see Basic Electrical Problems and Sprayer Wiring Problems, pages 18 - 19.
Motor is overheating.
Warning: See Thermal Over-
load, page 7.
After motor cools, operate sprayer and deter-
mine if motor stops when trigger on gun is
released. If sprayer runs continuously, replace
Pressure Control. See List of Kits, page 26.
Relieve pressure and remove motor enclosure.
Turn motor fan by hand to check for binding
gears or seized pump. See List of Kits, page 26.
General Problem: Low or Fluctuating Output
Pump cycles, but output is low
or surging. See Basic Troubleshooting,
page 12.
Worn or obstructed inlet and
outlet valves. Check for worn pump valves as follows:
Prime sprayer with paint. Turn the Prime/Spray
valve to SPRAY position. Turn pressure control
fully clockwise.
Trigger spray gun briefly.
When spray gun trigger is released pump should
cycle momentarily and stop.
If pump continues to cycle, pump valves may be
worn or obstructed.
For replacement inlet and outlet valve kits, see
List of Kits, page 26.
Prime/Spray valve is leaking
out drain line when
Prime/Spray valve is in
SPRAY position. Check Prime/Spray valve for debris trapped on
seat and for worn parts. Torque to 130-180 in-lb
(15.8-18.1 N•m). Replace if parts are worn using
Prime/Spray Valve Kit, page 26.
Voltage from electrical outlet
is too low. Low voltages
reduce sprayer performance. Check voltage of outlet. Meter must read 85 to
130V AC.
Extension cord is too long or
not heavy enough gauge. Replace extension cord.
See Grounding and Electrical Requirements,
page 7.