The Toyotomi Circuit Main Board Test Jumper Kit for BS-36UFF and OM-122DW, part number 20476488, is a replacement diagnostic jumper assembly designed to interface with the main control board of select Toyotomi oil-fired water heaters. It provides a set of jumper connections that allow qualified service technicians to perform continuity and functionality checks during troubleshooting and service procedures. This kit is manufactured to original equipment specifications so it plugs into the designated test points on the control board without modification and supports proper diagnostic processes.
This jumper kit is intended for use during maintenance and repair when testing the main control board’s circuits, sensors, and safety interlocks. Using the correct jumper connections helps confirm proper signal pathways and can assist in identifying faults such as open circuits, failed sensors, or control logic errors. Installation and use of this test jumper kit should follow Toyotomi service documentation and be performed by trained personnel to ensure safe and accurate diagnostics.
What’s Included: One (1) Toyotomi circuit main board test jumper kit for compatible heater models.
Installation Limits: For diagnostic use on specified Toyotomi control boards only; use with the heater powered off and follow the model’s service instructions for proper test procedures.
Compatibility: Compatible with Toyotomi BS-36UFF and OM-122DW heater main control boards requiring jumper connections for diagnostics.
