Pitco E7 Service, Parts And Schematics page 24

A
Have you allowed
enough time for the heaters
to warm-up?
Use a VOM to measure the
resistance at the filter power cord
plug. If the resistance is higher
than 37.5 ohms, a heater has failed
and must be replaced.
Does the filter
YES
circuit breaker keep
tripping?
NO
Does the filter
YES
motor trip the
overload?
NO
D
B
NO
YES
Allow 1/2 hour for the
filter heaters to
soften hardened
shortening.
Is the filter
correctly connected to
the filter piping?
YES
Check the filter lines for
clogs.
Is the filter
correctly connected to
the filter piping?
YES
Check the filter lines for
clogs.
4-19
Reset the circuit
breaker and check
for a clogged filter
hose.
Replace the
switch.
NO
Replace filter
motor.
Ensure that the filter hose is
correctly connected to the filter unit
and the correct valves are open
Ensure that teh filter hose is
NO
correctly connected to the filter unit
and the correct valves are open
C
Is the
YES
building circuit
breaker
open?
NO
Is there
continuity across
NO
pump/heater switch when
in ON
position?
YES
Is 115
VAC present at
YES
the filter motor when
the filter switch
is ON?
NO
Check switch and
replace if
defective.