Drain fresh water tank and water heater; toilet, shower and sinks; fill P-Traps with anti-freeze; pump anti-freeze through water lines with water heater bypass already installed
Clean main burner orifice; clean blower wheel; clean/Inspect/Adjust electrode assembly; test module board/inspect and clean board contacts; clean and inspect combustion chamber; inspect fan motor; clean and inspect vent tubes and outer casing.
