sounds like it could possibly be a couple different problems from oversized system, defective stat, breeze at stat location, stat being heated up by other means, air leaks......etc.
You questioned the load calc earlier in another thread. And it has been suggested that the installers have re-arranged some figures to put them in the clear.....
My opinion and advice would be to seek a professional opinion and diagnosis from another reputable contractor in your area. You will more than likely have to pay for their time but you may get the much valuable information you need.
If you've already had issues with this system and installer, I would also recommend you purchase the extended warranty for 10 yr parts and labor from the contrator. That is assuming that your going to keep your current system and contractor. I hate to see you get past your current labor warranty and start getting hammered with high repair bills.
We have offered as much help as we can without looking at the system. You are going to have to either trust your contractor or find another one to come give you a second opinion or other options.
Ok since I have lowered the stat to 75 degrees. It took about a hour and a half to reach that point. Since then it has ran 25 minutes on 7 minutes off 20 minutes on 9 minutes off and right now i'm at 14 minutes and still counting right now. What do you guys think about those numbers? Thanks
It's pulling the heat out of the mass of your home......expect the same trend IMO.....as outside temps drop the time on will decrease......if it was getting hotter the times on would increase.
As the furniture gives up more of its heat, your cycles will shorten. How much is what we can't say.
See how its doing later tonight, and tomorrow.
I will keep track tonight and early tomorrow morning before I go to work. So you guys think the run times will be back down to a couple of minutes tonight or early tomorrow morning? Thanks Again
Iraqveteran what do you recommend I ask the other contractors about my system? Do you think I should have them do another load calc?
If you are uncertain about the load calc then yes, I would tell you to explore getting another one done by a different contractor.
Originally Posted by rickytz7111
But you gotta be careful when you word it to the newer contractor. If you explain that you feel the previous contractor has made a simple miscalculation or mistake and would like another load calc completed in order to compare the two and decide what option you need to explore to correct your problem.....you should get an honest load calc. And be sure to inform the new contractor about everything that has been going on. And mention that you may be exploring the options with a new contractor.
Think of it this way....your car isn't running right. Take to the mechanic and he says nothings wrong or its fixed. 2 days later...same problem. Same mechanic, same fix. And the cycle goes on. How many times would you go back to the same mechanic before you seek another opinion. This is the same thing only the mechanic is coming to your home.
Other than that....yes your run times will more than likely be shorter tomorrow morning. And anytime the outdoor ambient temp is lower or you have overcast and cloud cover. All these things factor into the complete diagnostic of a system.
And I must say that you have got entirely too much time on your hands to be sitting there timing your CPH. JMO though. If it were me timing the system. I would be doing it in a lawnchair with a beer and my shotgun.:D But thats just me.
I believe the load calc is correct it could have gone either way with a 4 ton or a 3.5 ton. Well I checked my run times when I woke up this morning. It was 71 degrees outside the stat was set to 75 degrees and I had a 5 minute run time with a 30 minute off time another 5 minute run time with a 30 minute off time. It was still dark out when I did my calculations. It seems a little better then 1 and 2 minute run times to me. Are those better run times? Last night before I went to bed at 9:30 I was still getting about 15-17 minute run times with 10-15 minute off times and with the outside temp at 80-81 degrees. One last thing outside humidity this morning was 78% inside the house was 47%.
Those are better run times.
get a temp reading at or on the thernostat with another device. sometimes the thermostats come a few degrees off and can be adjusted.
Thanks Guys for all the info. I'm having a new stat put in on monday. I'm also leaning towards buying the 10 year parts and labor warranty.