DeVillbiss Air Power Company Water Driver WD1600E - Manual (Page 17)

17- ENG D28921
Water or oil leaking
from bottom of pump A small amount of leakage is
normal If excessive leaking occurs call
Customer Service Department
Bypass valve not operating
properly Call Customer Service Department
Faucet closed Open faucet
Unit has been stored in freezing
temperatures Thaw out unit completely including
hose, gun, and wand
No intake of chemicals Injection tube not securely
inserted into pressure washer Push firmly into machine
Tube cracked or split Replace tubing
Pressure increases
when gun is closed
Motor running but
pump not building
maximum pressure or
has irregular pressure
Water inlet screen clogged Clean screen. See section 5.4
Air in pump Let pressure washer run with gun
open and wand removed until
steady stream of water is released.
Adjustable pressure knob not
set to maximum position Set to maximum position. See
Section 4.2
Suction or discharge valves
clogged or worn out Call Customer Service Department
By-pass valve not operating
effectively Call Customer Service Department
Wrong Nozzle setting Switch nozzle to low pressure
Injection tube strainer clogged Clean strainer
Dried chemicals in injector Dissolve by running warm water
through the injection tube
Gun safety lock engaged Release safety lock Trigger will not move
PROBLEM POSSIBLE CAUSE CORRECTION
Nozzle Blocked Clean Nozzle. See Section 5.2