Dishmachine Maintenance Instructions
Thermostat
Replacement
(From EGO brand to Stemco)
1. Some models, such as the Tempstrar pictured below, will require
that the thermostat bracket removed from the heater. Using a
2. With the thermostat and thermostat bracket safely out of the
way, use a 7/16” combination wrench to loosen and then remove
3. Remove the wires from the old thermostat. It may be necessary
4. Remove the thermostat bracket mounting nuts with the 7/16”
www.jacksonmsc.com
Many dishmachines comes with integral booster tanks to
ensure proper temperature of the final rinse. Jackson has predominantly used two manufacturers of thermostats, EGO and Stemco.
These instructions are for use with kit 06401-003-13-94, which is
to replace an EGO rinse regulating thermostat with a Stemco
brand.
Jackson offers all of the repair parts necessary for performing this task.
The instructions provided here are for maintenance personnel only. Unauthorized persons should not attempt any of the
steps contained in these instructions.
Warning: many of the instructions and steps within
this document require the use of tools. Only authorized per sonnel should ever perform any maintenance procedure on
the dishmachine!
PREPARATION
1. Power must be secured to the unit at the service breaker. Tag or lock out the service breaker to prevent accidental or
unauthorized energizing of the machine.
2. Ensure that incoming water to the machine is secured
either by use of a shut-off valve or disconnecting the incoming
water line.
3. The unit must be drained completely with the drain
stopper removed (if applicable).
4. Remove any and all access covers.
STEPS
ratchet, extension and 1/2” socket, remove the nuts and lock wash
er holding the bracket on.
Removing the thermostat bracket/heater nuts.
TOOLS REQUIRED
The following tools may be needed to perform this main -
tenance evolution:
1. 3/8” Nutdriver
2. 7/16” Combination Wrench
3. Needlenose Pliers
4. Phillipshead Screwdriver
5. Flathead Screwdriver
6. Ratchet with 1/2” Socket
TIME REQUIRED
It is estimated that it will take (1) person sixty minutes to
perform this task, not including all of the items indicated in the section entitled “PREPARATION”.
IMPORTANT NOTES
1. Read these instructions thoroughly before attempting
this maintenance task. Become familiar with the parts and what
actions need to be taken. This will save time in the long run!
2. These instructions are shown using a Tempstar model
dishmachine. However the steps provided should work for models
such as the JPX-300H as well.
Removing the thermostat bracket.
the imperial brass fitting holding the probe in.
to use the needlenose pliers to accomplish this.
nutdriver.
2
Rinse RegulatingThermostat Replacement Instructions
Revision A (11/16/2005)