PROBLEM
Engine will not start or
stops while operating
Engine is overloaded
Pressure increases when
gun is closed
Engine is running
but pump won't build
maximum pressure or has
irregular pressure
No intake of chemicals
Trigger will not move
Water in crankcase
Noisy operation
Rough/pulsating operating
with pressure drop
High crankcase
temperatures
07mf2_POWERPLAY MANUAL_EN_11614.indd 17
TROUBLESHOOTING GUIDE
CAUSE
1. Low-oil shutdown (if equipped)
2. Engine switch not in "ON" position
3. Pressure built up in the hose
1. Nozzle partially blocked
2. Excessive pressure
1. Bypass valve is blocked
1. Water supply faucet closed
2. Unit has been stored in freezing
temperatures
3. Inadequate water supply
4. Water inlet screen clogged
5. Kink in garden hose
6. Wand tip worn or damaged
7. Air in pump
8. Engine speed not set to maximum
position
9. Suction or discharge valves clogged or
worn out
10. Bypass valve not operating effectively
1. Injection tube not securely
inserted into unit
2. Tube cracked, split or crimped
3. Wrong nozzle
4. Injection tube strainer clogged
5. Nozzle blocked
6. Dried chemicals injector
7. No chemicals in detergent tank
1. Gun safety lock engaged
1. High humidity
2. Worn seals
1. Worn bearings
2. Air mixed with water
1. Inlet restriction
2. Air mixed with water
1. Wrong grade of oil
2. Improper amount of oil in engine
3. Oil has lost all lubricity
and cooling ability
14 - English
CORRECTION
1. Fill engine with oil
2. Turn switch "ON"
3. Squeeze trigger while starting
1. Clean nozzle
2. Adjust unleader cartridge if adjustable
1. Clean the bypass valve
1. Open water supply faucet
2. Thaw out unit completely including hose,
gun and wand
3. Provide a minimum of 4 GPM at 20 PSI
4. Clean screen
5. Straighten garden hose
6. Replace wand
7. Let it run with gun open with wand removed
until steady stream of water is released
(engine off)
8. Set throttle to maximum position
9. Clean the suction or discharge valves
10. Clean the bypass valve
1. Push firmly into injector fitting
2. Replace tube
3. Switch to low pressure nozzle
4. Clean strainer
5. Clean nozzle
6. Dissolve by running warm water
7. Add chemicals
1. Release safety lock
1. Change oil more frequently
2. Change the oil seals
1. Change the bearing
2. Check inlet lines for restrictions and/or
proper sizing
1. Check system for stoppages, air leaks,
correctly sized inlet, plumbing to pump
2. Check inlet lines for restrictions and/or
proper sizing
1. Use 10w30 non detergent oil as per engine
manufacturer's recommendation
2. Adjust oil level to proper amount
3. Change engine oil as per maintenance
schedule
13/06/12 2:53 PM