Bunn Single TF Operating & Service Manual page 37

SERVICE (cont.)
TANK HEATER (cont.)
Electronic Control Models:
1. Disconnect the brewer from the power source.
2. Disconnect wires from heater.
3. Check for continuity across the tank heater ter-
minals.
If continuity is present as described, the tank heater is
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.
BLK to Contactor T2
RED to Contactor T1
ELECTRO/MECHANICAL
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 the illustration below when reconnect-
ing the wires.
ELECTRONIC
Page 37
BLK to Limit Thermostat
BLU Lead from
Triac Assy
P837
27118 100400