To prevent slippage

Common indicators include a humming condenser fan motor that won't start

the RV48 series is rated for a maximum inlet pressure of 1/2 PSI and is specifically calibrated for an outlet pressure range of 4-8" w

When using the Rheem-Ruud 68-21016-01

Lochinvar & A.O. Smith 100208621 Harness To prevent slippageThe Lochinvar & A. O. Smith 100208621 Spark Electrode Harness is a critical OEM replacement component designed for high efficiency boiler ignition systems. Also identified by the industry cross reference WRE2210K, this ignition harness provides a high voltage path from the DSI control module to the spark electrode, facilitating reliable combustion across various condensing boiler and water heater models, including the Lochinvar KB150, 151, and 210 211