Henny Penny 500 Service Manual page 95

(PART MO. 18412)
THERMOSTAT
(PART MO. I67C.I)
f the thermostat fails to work properly and the calibra-
tion procedure does not correct the problem, perform
the following checks before replacing the thermostat:
1.
move electrical power supplied to the fryer.
Place POWE
tch to the OF
position, and unplug the power cord or open the
wall circuit breaker, or electrical shock could
result.
2. Remove the control panel.
3. With an ohmmeter or continuity light, check for
continuity as follows.
4. On a standard (single temperature) thermostat,
check between terminals 52 and 53. Move the tem-
perature knob from OFF to maximum.
At OFF, the circuit should be open.
At maximum, the circuit should be closed.
5. On the optional two stage thermostat, check be-
tween terminals 50 and 51. Move the temperature
knob from OFF to maximum.
t OFF, the circuit should be open.
t maximum, the circuit should be closed.
Next, check between terminals 48 and 49. The re-
sults should be the same as above.
6. the optional dual indicating thermostat, re-
ve wire nut from terminal 47 and then check
tween terminal 47 and terminal 6 on delay timer.
ve the green colored pointer from zero to
maximum.
At zero, the circuit should be open.
t maximum, the circuit should be closed.
etween terminal 47 an
ing t
the s