Pitco E7 Service, Parts And Schematics page 14

B
Does HEATING
light go out when
thermostat is set above
oil temperature?
probe as described in 4.6.
Is the temperature probe
YES
Verify continuity of the leads
which provide 24 VAC power,
and the potentiometer and probe
signals to the module.
D
NO
Test the temperature
defective?
Replace the
NO
temperature
Test the temperature
set potentiometer
as described in 4.4. Is
the potentionmeter
defective?
Replace the
potentiometer.
NO
Test the
temperature control
module as described
in 4.5. Is the module
defective?
Replace the module.
NO
Are heating
element fuses
YES
Check heating
elements as
described in 4.3.
Are they good?
probe.
Check contactors K7 thru K10. Check
YES
wiring for loose connections. Check
continuity between the grey lead on
each contactor and the grey lead to the
YES
4-9
C
YES
YES
blown?
Replace the fuse(s)
and determine the
NO
cause for blowing.
NO
Replace the
defective heating
elements
YES
HEATING light.