Generac Power Systems Pro 6712, Operator'S Manual

Page: 20 / 72

Maintenance and Troubleshooting
18 Owner’s Manual for Power Washer
Troubleshooting
PROBLEM CAUSE CORRECTION
Pump fails to produce
pressure, has erratic pressure,
chattering, loss of pressure,
low water volume. 1. Low pressure nozzle
installed.
2. Water inlet is obstructed.
3. Inadequate water supply.
4. Inlet hose kinked or
leaking.
5. Clogged hose inlet screen.
6. Water supply is over 100 ºF
(37.8 ºC).
7. High-pressure hose is
obstructed, or leaks.
8. Spray gun leaks.
9. Nozzle is obstructed.
10. Pump is faulty.
11. Belt is worn
1. Replace with high-pressure
nozzle.
2. Clean inlet.
3. Provide adequate water
flow.
4. Straighten inlet hose, patch
leak.
5. Inspect and clean inlet
hose screen.
6. Provide cooler water
supply.
7. Clear obstructions or
replace hose.
8. Replace spray gun.
9. Clean nozzle.
10. Contact authorized
servicing dealer.
11. Contact local service
facility to replace belt
Detergent fails to mix with
spray. 1. Detergent siphoning tube is
not submerged.
2. Detergent siphoning tube/
filter is obstructed or
cracked.
3. High-pressure nozzle
installed.
1. 1. Insert detergent
siphoning tube into
detergent.
2. Clean or replace filter/
detergent siphoning tube.
3. Install low-pressure nozzle.
Engine runs well at no-load,
but bogs when load is applied. 1. Engine speed too low. 1. Contact authorized
servicing dealer.
Engine will not start, or starts
and runs rough. 1. Low oil level, “Oil Alert
System”.
2. Dirty air filter.
3. Out of fuel
4. Stale fuel.
5. Spark plug wire not
connected to plug.
6. Bad spark plug.
7. Water in fuel.
8. Excessively rich fuel
mixture.
9. Engine switch OFF.
1. Fill crankcase to proper
level.
2. Clean or replace air filter.
3. Fill fuel tank.
4. Replace with fresh fuel.
5. Connect wire to spark plug.
6. Replace spark plug.
7. Drain fuel tank, replace
with fresh fuel.
8. Contact authorized
servicing dealer.
9. Turn engine switch ON.
Engine shuts down during
operation/ 1. Out of fuel. 1. Fill fuel tank.
Engine lacks power. 1. Dirty air filter. 1. Replace air filter.