Bunn Coffee Machine 23001.0052

Disconnect the water supply tube from the fill basin

Remove the tank inlet fitting securing the fill basin to the tank lid, remove fill basin and tank inlet gasket. Set all three parts aside for reassembly

On brewers with faucet shut-off water supply to the brewer and disconnect the inlet and outlet water lines to the faucet coil assembly

Disconnect the black wire on the limit thermostat from the tank heater switch. On late model brewers also disconnect the blue wire from the limit thermostat to the control thermostat

Disconnect the black wire and the white or red wire from the tank heater terminals

Remove sprayhead and the hex nut securing the sprayhead tube to the hood. Set aside for reassembly

Remove the eight #8-32 nuts securing the tank lid to the tank

Remove the tank lid with limit thermostat, sprayhead tube, tank heater, coil assembly and control thermostat w/bracket (early models only)

Remove the two hex nuts securing the tank heater to the tank lid. Remove tank heater with gaskets and discard

Remove wires from control thermostat leads

Remove the thermostat capillary bulb by firmly pulling-up on the capillary at the tank lid

Remove the one #8-32 screw securing the control thermostat to the component bracket in the trunk

Slide the grommet to the line 4.5\ above the bulb on the new capillary tube"

Insert the capillary bulb through the hole in the tank lid and press the grommet firmly and evenly so that the groove in the grommet fits into the tank lid

Carefully bend the capillary tube so that the tube and bulb inside the tank are in the vertical position

NOTE - The capillary tube must be clear of any electrical termination and not kinked

Select the model of the machine

Early Models: Using two #8-32 screws secure the control thermostat inside the hood

Remove the pink and tan wires from the switch

Compress the clips inside the hood and gently push the switch through the opening

Push new switch into the opening and spread the clips to hold the switch in the hood

Sign off on the switch replacement

Warning: Always unplug the machine before cleaning

Cleaned all surfaces with a damp cloth rinsed in mild, non-abrasive, liquid detergent

Checked and cleaned the sprayhead, ensuring the holes remain open

Inserted the deliming spring all the way into the sprayhead tube, sawing back and forth five or six times

Is the machine located in a hard water area?

Sign off on the coffee machine cleaning

Warning: Disconnect the brewer from the power supply before starting the test

Brewer disconnected from the power supply

Pink and tan wires disconnected from the switch terminals

Continuity checked across the two terminals on the switch when it is in both positions

Continuity present across these terminals only in the full position

If continuity is not present as described, was the switch replaced?