Dairymaster Recording Jar Wash Relay (Complete) The Dairymaster Recording Jar Wash Relay (Complete) is a fully assembled replacement relay designed for use within Dairymaster milk recording jar wash systems. This relay controls and coordinates the wash cycle for recording jars, ensuring thorough and consistent cleaning as part of the parlour wash routine. Supplied as a complete unit , this wash relay is ideal for direct replacement where an existing relay has failed, become unreliable, or suffered electrical damage. Correct relay operation is essential to ensure recording jars are properly cleaned between milkings, helping maintain hygiene standards, protect milk quality, and support accurate milk recording. Designed for the demands of dairy environments, the Dairymaster Recording Jar Wash Relay (Complete) is suitable for installations exposed to moisture, temperature variation, and regular wash-downs. Replacing a faulty relay helps restore correct wash sequencing and prevents incomplete or inconsistent cleaning cycles that could lead to residue build-up or hygiene issues. This component is well suited to servicing, repairs, or preventative maintenance , particularly where wash sys