Prochem Everest EFI - Manual (Page 43)

TROUBLESHOOTING
EVEREST EFI 980197 06/30/04 4-11
PROBLEM CAUSE SOLUTION
Water supply is turned off or the float
valve is stuck or improperly adjusted.
Turn the water supply on or up. Check for
kinks in the water supply hose. Examine the
float valve and adjust or replace.
Water pump inlet supply line is plugged
or drawing air.
Examine the water inlet filter inside the water
box. Remove accumulated debris and
replace if required. Check for suction leaks
and loose clamps or fittings. Tighten any
loose fittings or clamps. Replace any
ruptured hose(s).
Orifice improperly installed or
Improper engine speed
Using a tachometer, check the engine speed.
Full throttle engine speed is 2200 RPM. Idle
engine speed is 900 RPM.
Pressure regulator o-rings are dry.
Lubricate o-rings, using o-ring lubricant Part
#05-008035.
Pressure regulator has worn o-rings Check o-rings. If necessary, replace.
Pressure regulator is dirty, stuck open,
or improperly adjusted.
Clean or repair regulator. Adjust to working
pressure. Lubricate o-rings, using o-ring
lubricant Part #05-008035.
Low pump volume. (Measure the
amount of water being returned to the
water box from the pressure regulator.
It should fill a gallon container about
every 17 seconds).
Examine the check valves, plunger cups, and
cylinder head on the water pump. Repair,
whenever required (refer to the water pump
service manual).
Defective water pressure gauge. Replace gauge
Orifice (spray nozzle) in the cleaning
tool is worn, defective, or wrong size.
Replace Nozzle or change nozzle size.
Debris clogging water lines or water
inlet disconnect.
Clean or replace as needed.
Loss of water pump pressure.
With the cleaning tool open,
the water pressure gauge
reads below the normal
operating pressure.
Belts loose or broken Re-tension or replace as needed.
Plugged orifice and/or screen in the
cleaning tool.
Unplug or replace orifice and/or screen
Internal block between the pressure
regulator manifold and the outlet Y-
strainer, or the Y-strainer screen is
clogged
Inspect all lines, remove accumulated debris
which is blocking proper flow. Replace any
defective hoses. Remove, inspect, and clean
the Y-strainer screen. De-scale unit and
install a water softener, if necessary.
Outlet check valve is plugged Examine the check valve, remove any debris
Defective quick-connect on one or more
of the high pressure hoses. Replace defective quick-connects(s) on high
pressure hoses(s).
Cleaning tool valve is malfunctioning. Repair or replace valve.
Hose inner lining is constricted. Remove restriction or replace hose.
Loss of solution volume at
cleaning tool orifice.
Water gauge reads normal.
Orifice Damaged or left out. Inspect and correct.
Uneven temperature
fluctuation
Clogged temperature balance orifice Maintain orifice assembly.