I have a 2 story house, 2 units, upstairs (dico) digital thermostat, main floor old standard one. The problem is when the heat is on, the registers always blows out cold air, I don't think its normal for this?? What is wrong with this, and just last year, during the summer the pipe from upstairs unit outside was freezing up and into the house. We had a technician look at our units and handler inside, we had to turn the ac off for it to defrost. What is going on here? Please help

I did have a technician check out everything, and he did put just a little more freon in, but It did not fix the problem last summer. We turned off the air and defrosted it. As for the cold air, we are totally electric

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Originally Posted by pawpawdiv9

i did have a technician check out everything, and he did put just a little more freon in, but It did not fix the problem last summer. We turned off the air and defrosted it. As for the cold air, we are totally electric

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Just to make a wild guess without knowing if you have made sure of a clean filter, I`m looking back at your last summers problem,, is possible a circulation problem,did anyone check for a dirty/clogged a-coil? This could have been the reason for the ac freezing up, and also the reason this winter the furnace isn`t working. The cold/or heat must travel through the a-coil,, if it dirty /clogged up it can`t go through and this could be causing the furnace to overheat and cause problems,, like making the sensers to click out (which will kill the power (temperary) to the heating elements,, now again this is just a first guess, not being able to be there for a first hand look-see,, let us know
After you take a closer look-see

I'm confused, I said I was totally electric, which I understand I have heat pumps--No furnace. Fortunally, the return filters do get replace every month or 2. Yes they did look in the units and he looked at the coil and condesors. As for the cold air burst, I was told it was normal when the heat kicks in ,until the warm air blows out the cold for a minute or so. That can be annoying when its cold and bundle up, the last thing you want is cold air blowing on you. But the pipe freezing is the main problem, I want to get fixed before summer

I guess we need to back up and re-look your problem
Exactly what kind of pipe are you talking about that was freezing
I guess I was assuming you was speaking of the copper line `s running from the outside heatpump to the inside airhandler

Tell me more of what lines are freezing

Most all heatpumps are going to a airhandler/furnace with backup heat of some kind,and connected to this airhandler is a evaporater coil that gets dirty and slows down the circulation sometimes, therefore the copper lineset will frostup/freeze over if bad enough, this is when ac/heatpump is in ac mode,, so I`ll shut up till I hear more

From what was said, the line from the outside unit to the handler inside(upstairs) was freezing up(started in towards the house. The coil attached to handler inside was inspected. He did put little bit of freon in and was fine for a couple days and started again. I have no clue. Any answers??

WELL it did it again this summer----pipe started freezing up again. So I went ahead called a professional. He checked it over nothing wrong, He checked the freon--was good. Coil were good and filters were good. He ven checked the amps on the blower in the air handler and was good. Waited a few days, froze again this time So this time he's 95% sure it's the SEQUENCER. Which is a relay to let the fan kick in, if not it's the thermostat, which he doubts it is. So the answer here is ---GET a PRO. Spend the 70$ for first day and 45$ the next day. ItS WORTH IT.