Thermo Scientific 180 Series, Operating And Maintenance Manual

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Section 7
Service
Warning
Unit must be disconnected from power source prior to servicing.
It is recommended that all service be performed by qualified service
personnel.
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To service the water bath, turn it on its side or top and remove the bottom
plate and insulation. To prevent scratching of the enameled surface, place
protective material (such as cardboard, cloth, or newspaper) under unit.
1. Put the power switch in the "OFF" position and disconnect power to
the bath.
2. Turn bath upside down and remove bottom plate & fiberglass
insulation
3. Disconnect the two leads from heater element.
4. Remove the two hex nuts that fasten the heater element to the pan and
remove element.
5. Remove FiberFax insulation from the old element and insert it into
the new element.
6. Fasten the new heater element to the pan and connect the two leads.
Caution Be sure the wire
leads do not touch the
heater element.
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7. Replace insulation and
install bottom plate.
Note Use no thermal
compounds or paste on
heater.
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GP Water Baths 7-1 Thermo Scientific
General Information
Heater Element
Replacement
Figure 7-1. Heater Element