Had a new Heat Pump installed earlier this week by an independent. Guy did a decent job but I found a fault in the air handler wiring so now I'm second guessing this whole deal.

Outdoor unit is a Goodman GSH140421A (3.5 ton)
Indoor unit is a Goodman AEPF42601 w/10K heat strips

After the installer left, the AC kept running and running, house got colder and colder, regardless of the temp setting on the thermostat. Had to turn the thermostat from Cool to Off and it finally stopped.

Ended up the guy forgot to remove a jumper wire in the air handler unit. I found it and removed it myself by studying the Goodman wiring diagrams for the air handler circuit board. Now the AC works and cycles just fine. Yea! I later phoned him on it and he said, "Oops, I forgot to remove that jumper. You should be OK now though. Sorry."

Again, I'm second guessing some of the other wiring now, and fear I may run into similar problems come winter time when I want some heat.

Here are the air handler instructions: http://www.ncweb.com/~jsbuilders/aepf-sup.pdf

My question: Which diagram should I be following on page 3 because one involves clipping a jumper (and tying E & W2 together on the thermostat according to the hard copy in front of me, although it isn't shown that way on the online instructions linked above).

Your help is much appreciated. Thanks!

I suggest you call the guy that installed your unit back if you have any questions. The reason for this is the new equiptment is very sensitive to incorrect wiring and you can create a lot of damage unless you really know what you are doing. If you want to play HVAC man I suggest you take a course at the local trade school. I say this for your own good. I have seen many a home owner really mess there furnace/heat pump/A/C units up over the years by playing with or trying to check for a mistake that the professional made. Now if you do mess it up you will have to call him back anyway and pay him for his time and parts because your unit will not be covered under warranty.

You do know any work you do on the unit will void the warranty! Its new and under warranty let them come back and fix it for free. If my new car broke down I would not try to fix it , I would take it back to the dealer. Warranty!! You paid for it, why not use it?