ALL ELECTRIC KETTLES
SERVICING GUIDE
This section contains servicing information intended for use
by
Authorized service
Personnel.
Note 1: "
Fauh
Isolation Procedure is required, be sure tostart at step #1,
Note2: Ontable
top
kettlesthe entirecontrolmountingpanel
may
be removed from kettlecontrolhousingfor
easier troubleshooting and parts replacement.
Ai Problem: Kettle is not heating at all. (Kettle must be on and temperattJre controt set.)
Possible
Causes
1.
No
Incoming power.
8.
Defective potentiometer.
2 Kettle
IS
tilted.
9.
Defective low water level probe.
3.
Low water condition. 10. Defective thermistor.
4.
Defective on/off
SWitch
11.
Defective 240/16 VAC transformer.
5.
Defective
12
VDC relay. 12. Defective control box.
6 Defective safety thermostat. 13. Defective elements.
7.
Defective contactorls.
Fault
Isolation
Procedure
Step
Test
Resuh Remedy
1.
Is there proper incoming voltage at terminal Yes
Go
to step
#2.
block?
No
Correctexternal power supply problem.
2.
Is the red LED illuminated? Yes Follow Kettle Filling Procedure If thiS does
not correct the problem.
go
to PROBLEM 0
No
Go
to step
#3.
3 Is the green LED illuminated? Yes
Go
to step
#4.
No
Go
to step
#7.
4. Do both contactorsenergize? Yes
Check
contactor contacts for pitting.
Voltage across contactor terminals while
In
a
closed
position indicates a poor contact.
Replace contactorls as necessary.
Check
elementsfor short to ground
or
an
open
circuit. If element/s are defectivecontact
the factory. Elements are not field
replacable.
No
Go
to step
#5.
5.
Measure continUity
across
safety Yes Replace defective safety thermostat.
thermostat. Is
it
an
open
Circuit?
No.
Go
to step #6.
6
Is
there 120 VAC present across the coils of Yes Replace defective contactorlS
the contactors?
No
Replace defective
12
VDC relay
~
