The forced air unit here cycles on and off too frequently. Being all electric, I feel that efficiency would be improved by widening the temp range for start/stop parameters. i.e., let the house cool down more between heating cycles. Goodman mod ARUF182416BA Ser#0901697683. Digital wall 'stat has no OEM ID - GT5000/5020, ver1.2. Many moons ago, I remember recalibrating the hi/low limit switches on furnaces and re-setting wall 'stat to proper ambient temp sensing. Those were analog days. Moved here 11/1, no history or factory manuals.