Page 34
TANK HEATER
P837
FIG.33 TANK HEATER TERMINALS
RED to Contactor T1
BLK to Contactor T2
ELECTRO/MECHANICAL
FIG. 32 TANK HEATER
22978.0000
TL5
TL4
TL3
TL2
TL1
1 2 3 4 5 6
P2230
Location:
The tank heater is located inside the hood on the
right rear of the tank lid.
Test Procedure:
1. Disconnect the brewer from the power supply.
2
Check the voltage across the black and the red wire
on 120V, 208 or 240V models on the tank heaters.
With the control thermostat turned to the "ON"
position (fully clockwise), connect the brewer to
the power supply and check the voltage across the
wires with a voltmeter. The indication should be:
a.)120 volts ac for two wire 120 volt models, 208
volts ac for three wire 120/208 volt models and
240 volts ac for three wire 120/240 volt models.
b.)200 to 240 volts ac for two wire 200, 230 or 240
volt models.
3. Disconnect the brewer from the power supply.
If voltage is present as described, proceed to #4.
If voltage is not present as described, refer to the
wiring diagrams and check the wiring harness.
4. Disconnect wires from the tank heater.
5. Check for continuity across the terminals of the
tank heater.
If continuity is present as described, reconnect the
wires, the tank heater is operating properly. If continu-
ity is not present as described, replace the tank heater.
SERVICE (cont.)
28230 092200
NOTE -
If the tank heater remains unable to heat,
remove and inspect the heater for cracks in the sheath.
Removal and Replacement:
1.
Remove wires from tank heater.
2.
Remove the four #8-32 nuts securing tank heat
to tank lid.
3.
Remove tank heater and gasket.
4.
Install new tank heater and gasket with four #8-
32 nuts on tank lid.
5.
Refer to Fig. 33 when reconnecting the wires.