In Glendale, near West Taro Lane and North 79th Avenue performing Fall preventative maintenance on an Amana furnace. Upon arrival, cycled unit into heating mode. Replaced intake filter and took temperature readings from supply and return. At unit, cleaned and tightened electrical connections. Took volts and amp draws from components. Checked all safety switches and inspected gas supply/line and flue piping. Vacuumed and wiped down cabinet. Upon departure, unit is working properly and within manufacturer specifications.
