JP-33 SERVICE MANUAL
Technical Support How to replace key parts
B. Replacing developer/fixer heater
NOTE:
The developer/fixer heater is an external inline heater. This single heater
is heating both the developer and fixer. Make sure both tanks are drained before
removing the heater.
1. Make sure unit is turned off and chemistry is drained.
2. Remove hoses from heater by unclamping them.
a. There may still be chemistry in the heater and hoses; it is a good idea to have a
bucket or pitcher available to drain chemistry into.
b. Make sure to mark each hose position for installation.
3. Identify and remove the two screws holding the heater bracket in place.
a. There is a ground wire (green wire with yellow stripe) that is held in place by
one of the screws.
b. Make sure to remember the heater position.
4. Identify and remove the two wires connected to the heater. One is connected to the
PCB and the other to the power. When cutting the wires cut as close to the heater as
possible to provide sufficient wiring for the new heater.
5. Place the new heater in position, then place and screw the heater bracket into position.
Make sure to connect the ground wire (green wire with yellow strip) to the screw
closest to it.
6. Connect and clamp all the hoses onto the appropriate nipple. You will need 4 small
clamps.
7. Connect the two red wires. Make sure exposed wire is covered.
8. Make sure to strap any loose wires and check for leaks.
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