I've always felt my system short cycled slightly, but today it just seems to be beyond belief. Seriously, every 5 (give or take a minute or two) minutes the system goes on, and every 5 (give or take a minute or two) minutes the system rests. I don't know why it's doing this other than the fact that it's humid outside. Some speculation has gone through my mind that the system is overcharged and it's locking out (although I doubt it) or my thermostat has become inaccurate over time and now is the peak of its inaccuracy. I know enough to know that this is bad for the components in my system. The air coming out of the vents seems very cool and the house is staying cool, though.
My equipment is as follows:
-Payne 10 SEER Heat Pump (installed in 2004 I believe)
-Lennox 13 SEER Air Handler (installed this summer)
-Bryant Mercury Thermostat (this is from when the house was built around 1986-1987)
Please advise me on actions you'd recommend I take. I'm tempted to call back the company that installed the air handler and explain the problem; however, this is the same company that installed the Lennox air handler with the Payne system and assured us everything was fine, so I am tempted to choose another company.
Edit: After monitoring it for one cycle and one rest, the intervals seem to be approximately:
6-7 minutes resting
14-15 minutes running
Thermostat is set at 71-72.
Does this sound normal on a humid day outside?