The Open Air Over (OAO) enclosure relies on the system's airflow for cooling

this electrode is likely the culprit

ensuring exact 1:1 compatibility with original equipment

this belt will provide proper coverage

Dwyer Instruments 1212 Gas Pressure Kit 318820-201 The Open Air Over (OAO)The Dwyer Instruments 1212 Gas Pressure Kit is a professional grade diagnostic set designed for HVACR contractors who require laboratory level precision in a portable format. This kit centers around the Dwyer 1211 16 Slack Tube Manometer, which features a 8 0 8 inch water column range (total 16" w. c.). Unlike rigid gauges, this slack tube manometer is constructed from flexible vinyl plastic columns and a spring steel scale, allowing it to roll up