Prochem Everest EFI - Manual (Page 46)

TROUBLESHOOTING
EVEREST 980197 11/13/06 4-14
PROBLEM CAUSE SOLUTION
Starter turns over engine, but
will not start
Engine is malfunctioning
Refer to Nissan Engine Operation and
Maintenance Manual.
Engine is out of gasoline
Add gasoline to the fuel tank.
Waste tank is full Empty waste tank.
Main or engine circuit breaker on
the control panel has been tripped.
After inspecting the unit to determine the
cause of the tripped circuit breaker, press
the reset button.
Engine coolant temperture has
exceeded 240°F, triggering the high
temperature switch to shut the unit
down. Determine the cause of the overheating
before restarting the unit. Refer to the
Nissan Engine Operation and Maintenance
Manual.
Defective fuel pump. Replace fuel pump.
Defective float switch inside the
waste tank. Check switch for proper operation. Replace
as necessary.
Defective 240°F engine coolant
high-temperature shudown switch.
Test switch. If necessary, replace.
Oil pressure switch on engine has
shut down, due to insufficient oil
pressure.
Refer to the Nissan Engine Operation and
Maintenance Manual. DO NOT restart the
engine until the cause is determined and
corrected.
While doing normal cleaning,
the engine stops running
No ignition in the engine or engine
is malfunctioning. Refer to the Nissan Engine Operation and
Maintenance Manual.
Flow restriction caused by hard
water scaling.
Descale unit, repair or replace damaged
plumbing components as necessary.
Install water softener.
Excessive heating
Not enough water flow. Check jet size of tool.
Heat exchanger leaks.
NOTE: The exhaust heat
exchanger will produce water
condensation discharge at
times during normal operation.
DO NOT confuse this with a
leak.
Engine/vacuum exhaust heat
exchangers are damaged from
frozen water.
Inspect heat exchangers for leaks. Visually
inspect for damage. Pressure check after
removing from the unit. (Maximum test
pressure 1200 PSI).
Temperature relief valve on water
box is stuck open. Clean temperature relief valve and test.
Replace, if necessary.
Loss of temperature
The heat output of the unit is
LESS than normal.
Defective temperature gauge.
Test gauge and sensor. Replace failed
component.
Defective waste pump float switch. Replace float switch.
Broken diaphragm. Replace diaphragm.
Weak battery.
Charge or replace battery if needed.
Check charging station.
Automatic waste pump is
malfunctioning or not operating
normally
NOTE: When replacing either
the pump or float switch, use
new electrical connectors and
heat shrink. Inspect connection
for watertight seal.
Pump-out circuit breaker on control
panel has been tripped.
After inspecting waste pump to determine
the cause of the tripped circuit breaker,
press the reset button.