Lennox 21708 Blower Wheel 340155 7024 it will bleed off the it will bleed off the vacuum needed to hold the pressure switch closed this 14 B valve facilitates the essential "blow down" procedure required to flush sediment and ensure the reliability of low water cut off mechanisms
Check whether the proposal addresses your original concern rather than a different problem. Review what you would need to do if you accept the proposal.
Keep a record of the scope you authorized. Delegate a clearly limited task through the supported process while retaining visibility into the result.
Do not assume a previous visit reflects the current status. Check whether a listed notification option merely reports future updates rather than reserving anything.