Prochem Everest 408-650, LP-HP - Manual (Page 55)

53
Maintenance
Troubleshooting
Problem Cause Solution
Excessive heating
Flow restriction caused by hard water
scaling.
Descale unit, repair or replace
damaged plumbing components as
necessary. Install water softener.
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).
Loss of temperature
The heat output of the unit is
LESS than normal.
Temperature relief valve on water box is
stuck open. Clean temperature relief valve and
test. Replace, if necessary.
Defective temperature gauge.
Test gauge and sensor. Replace
failed component.
Bypass orifice missing Replace orifice
Temperature control lever improperly set Adjust lever
Automatic waste pump is
malfunctioning or not
operating normally
NOTE: When replacing the
pump or float switch on
internal (in tank) pumpout,
use new electrical
connectors and heat shrink.
Inspect connection for
watertight seal.
Defective waste pump float switch. Replace float switch.
Broken diaphragm. Replace diaphragm.
Weak battery.
Charge or replace battery if needed.
Check charging station.
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.
86352170 EVEREST