Heat Pumps and Electric Heating - Heat pump troubles!

We bought an Interthermal heat pump from a friend who said the unit worked good when they disconnected it. We purchased a new Goodman air handler to go with the unit. My husband and his cousin, who is a licensed HVAC man, installed the whole system this week. Before they charged the heat pump, they checked to make sure that the fan worked and it did. Once they hooked the lines up for the AC, they hooked everything up and the heat pump came on for a few minutes before they charged the system. They turned the power off to charge the system and then turned it back on. But now the fan won't even work. Checking the info that came with the tstat, we realized that the tstat we purchased was not compatible with a heat pump unit. We bought a new tsat and installed it last night, but the fan still won't come on. Could somebody please help.

My husband and his cousin, who is a licensed HVAC man, installed the whole system this week.

Id call him back right now to work on it. No way that I could know what or how he put it in and wired it.

heat pump came on for a few minutes before they charged the system. They turned the power off to charge the system and then turned it back on.
Dont see how you can charge a system with it off??? :wall:

ED :wall:

Sorry Ed. They shut the power off to stop the unit and then turned it back on the charge the system, but nothing worked.

Is it the indoor fan that's not coming on?? If so check for 24 volts at the transformer.

At the tstat jump R to G fan should come on.. jump R Y G O should make AC run

I just talked to my husband and he said that we don't have power to G.

R to G is fan R to Y is compressor R to O is cool not heat. There should be a wire lay out in the unit there look at it.


ED

But we're not getting power to G.

I posted a thread today entitled "Heat pump troubles!" and got a few responses to it. I was told to jump R to G to check to see if the fan on the air handler is working, but when I spoke to my husband, he informed me that we don't have power going to G. What could cause this and how do we fix it?

Take the t-stat off the wall and jump R-G right there and see if the fan comes on. If it does then replace your stat. If it don't check for low voltage ot of the transformer.

We're not getting power to G!

You mention not having power to G but you should not have power.

Terminal G is the connection to the fan relay.
You will have "power" at the R terminal which will energize the fan relay if everything is working.

If you are checking for "power" then you must at the air handler probe terminals C and R to measure voltage.
If you have been messing with the wires you could have blown a fuse.

We got our power problem fixed. Turns out the transformer was the problem. We replaced that and got everything working and now the copper lines outside and the big pipe coming out of the air handler keep freezing up. They thaw out almost immediately after we turn the unit off. We can't get the unit to take any more freon, so any ideas what may be causing this?

Did your cousin use a vacuum pump on the system before charging it?

To hear the comment, "We can't get the unit to take any more freon", is quite worrisome.
Just yesterday I reclaimed an overcharge of about 5 pounds of R-22 from a system that only holds about 3 pounds.
There are regulations in place that do not permit unlicensed and/or unqualified persons from working on the sealed system.
Your description of what you are doing tells me that your "cousin" is not qualified and likely not epa certified.

At this point all we can offer is to suggest you do the right thing and call a qualified and epa approved tech to fix this for you.