I attended a dual furnace tune up for Erin in the Chestermere area, during my inspection I found the inducer motor on the left to have good amounts of dust accumulated in the windings, I got out as much as I could. Both furnace duct work had an accumulation of dust, gas pressures on both furnaces were set too low, I have adjusted them to proper levels. Venting on right furnace was not tightened down properly and condensate was leaking through, i tightened the connections. I have provided the customer with several options.