Contactors (1600/1800E) - Broaster 1800 Service Manual

CONTACTORS (1600/1800E)

1. See ACCESS FOR SERVICE.
When the controller ini-
tializes it will ask you to
check the oil level.
2. Connect main power supply.
3. Turn on power switch. You should hear
an audible snap followed by another
shortly after the first.
4. Check voltage through primary con-
tactor (1) using a voltmeter. For single
phase, check across two outside con-
nections opposite applied voltage
wires. Meter should indicate 208 or
240 volts. For three phase, check
across any two of three connections.
Meter should indicate 208 or 240 volts
across all combinations. If not, cook/
filter switch, contactor, main power
supply, hi-limit open or power cord
may be faulty.
5. Check voltage between any two of the
three connections opposite element
wires on secondary contactor (2). Any
great drop in voltage indicates a poor
connection or dirty contact within the
contactor.
6. Secondary contactor (2) will close
when temperature display indicates
"Heat On". Make same checks as in
step 4 between any two of the three
connections on element wire side of
contactor. Any drop in voltage indi-
cates a poor or dirty contact within the
contactor.
Replacement:
4-2
broaster.com Manual #17270 1013 Rev 12/14
7. Disconnect main power supply.
8. If either contactor will not close electri-
cally, check coil (3) with an ohmmeter.
With needle nose pliers, disconnect
wire(s) from one side of the coil. Meter
should indicate a closed circuit. If not,
coil is faulty.
1. See ACCESS FOR SERVICE.
2. Remove all wires from the contactor.
3. Remove two mounting screws.
Remove contactor.
4. Install new contactor in reverse order.
Be sure all wire connections are
secure and in their original location.
See wiring diagram.