TECHNICAL SERVICE DEPARTMENT
Technical Service Bulletin
1-800-432-8373
How to Replace the Thermal Release Device (TRD)
Rheem Guardian System
Technical Competence, Product Confidence
Page 1 of 4
1446 How to Replace the Thermal Release Device (TRD).docx
How to Replace the Thermal Release Device (TRD)
Tools Required:
Torx 20 screwdriver
Parts Required: TRD Replacement Kit with TRD
and inner door gaskets, spare screws and clips.
You can tell if the thermal
release device has been
activated. Normally, there is a
small glass bulb in the assembly.
If the assembly has been
activated, then the bulb is
missing. You will also see the
shut off plate rod penetrating
into the bracket assembly.