Responded to a service call for a Lennox furnace with reported water leakage. Diagnosed the issue as a condensate drain pipe not properly inserted into the condensate pump, causing water to leak around the furnace area. Repositioned the pump by raising it approximately 1/2" to ensure proper insertion of the PVC drain pipe into the pump reservoir. Inspected secondary heat exchanger to confirm no internal leakage from blower compartment. Recommended duct cleaning service during visit.