Bunn Single TF User Guide
Page 37
SERVICE (cont.)
TANK HEATER (cont.)
P837
Electronic Control Models:
1.
1.
Disconnect the brewer from the power source.
2.
Disconnect wires from heater.
3.
Check for continuity across the tank heater ter-
minals.
minals.
If continuity is present as described, the tank heater is
operating properly.
If continuity is not present as described, replace the
tank heater.
operating properly.
If continuity is not present as described, replace the
tank heater.
NOTE - If the tank heater remains unable to heat,
remove and inspect the heater for cracks in the sheath.
remove and inspect the heater for cracks in the sheath.
Removal and Replacement:
1.
1.
Remove wires from tank heater.
2.
Remove the four #8-32 nuts securing tank heat
to tank lid.
to tank lid.
3.
Remove tank heater and gasket.
4.
Install new tank heater and gasket with four #8-
32 nuts on tank lid.
32 nuts on tank lid.
5.
Refer to the illustration below when reconnect-
ing the wires.
ing the wires.
27118 100400
BLK to Contactor T2
RED to Contactor T1
BLK to Limit Thermostat
BLU Lead from
Triac Assy
Triac Assy
ELECTRO/MECHANICAL
ELECTRONIC