York 031-02107-000 Surge Suppressor 326070-701 The diagnostic LED typically indicates

The diagnostic LED typically indicates three primary conditions: steady on for internal control failure

The White-Rodgers 1A16-51 is a heavy duty line voltage thermostat designed for high-capacity heating and cooling applications

protecting compressors from potential failure

This shorter probe is necessary when mounting the control in a standard 3/4" pipe tee rather than a dedicated boiler tapping

maintaining the integrity of the 24V control circuit

York 031-02107-000 Surge Suppressor 326070-701 The diagnostic LED typically indicatesThe York 031 02107 000 is an essential HVAC surge suppressor designed for heavy duty industrial application within Johnson Controls and York environmental systems. This S1 031 02107 000 transient voltage surge suppressor (TVSS) serves as a primary defense for sensitive microprocessors and control boards against line side electrical transients. In the field, this York chiller replacement part is critical for maintaining the operational uptime of