So last Thursday the fan in my HVAC unit stops working. Thermostat shows the fan as on and the cool setting is on. My outside unit is working it *** off, frosting up, but no air is coming through the vents in the house. I shut it down and call the HVAC company I used on another project. Tech comes out say the relay switch on the board is fried and I have to get a new board since they are all one part. He makes some calls and no one in town has one so it has to be ordered, won't be here until Monday or Tuesday. He say he will hook up a jumper that will let the fan run so the house can cool down, but that even when the AC stops the fan will still run. No problem.
Fast forward to today, I haven't heard from the company so I give them a call at 430. Nice lady that answered the phone said that the tech notes show that they came back the same day and fixed the problem. She didn't realize I haven't had heat or AC since Thursday. It has dipped down in to the low 40s and up to the mid 80s in the last five days but it hasn't been too uncomfortable.
She swears she will find out what is going on.
I decide to take a look myself, I find the board in question, snap some pictures and head to the internet. The board will cost me $135 to have it here by Friday. They quoted me $500 to do the work.
My question is this, how hard is it to change the board? The part # is CNT03076. I took extensive photos of my current board and this board is marked the exact same.
I have never worked on an HVAC unit before, but have some minimal handyman knowledge and have built many a computer front scratch so I have been around computer boards. It looks really simple, unscrew a few terminals, put wire in terminals with the same markings on new board, tighten screws, plug in two harnesses, then hook up the remaining blade terminated wires to the right posts.
Am I missing something? Is there another part I have to worry about frying if I do this wrong? Is there a capacitor I am missing that may discharge into my body? I can't see a reason not to tell them to take a hike given their screw up and save myself almost $380 bucks.
The whole damn unit is original to the house, so 17 years old, seems like I am probably going to have to replace it soon anyway so why not try myself.
Justin
Sorry if some of the terminology is wrong.
Fast forward to today, I haven't heard from the company so I give them a call at 430. Nice lady that answered the phone said that the tech notes show that they came back the same day and fixed the problem. She didn't realize I haven't had heat or AC since Thursday. It has dipped down in to the low 40s and up to the mid 80s in the last five days but it hasn't been too uncomfortable.
She swears she will find out what is going on.
I decide to take a look myself, I find the board in question, snap some pictures and head to the internet. The board will cost me $135 to have it here by Friday. They quoted me $500 to do the work.
My question is this, how hard is it to change the board? The part # is CNT03076. I took extensive photos of my current board and this board is marked the exact same.
I have never worked on an HVAC unit before, but have some minimal handyman knowledge and have built many a computer front scratch so I have been around computer boards. It looks really simple, unscrew a few terminals, put wire in terminals with the same markings on new board, tighten screws, plug in two harnesses, then hook up the remaining blade terminated wires to the right posts.
Am I missing something? Is there another part I have to worry about frying if I do this wrong? Is there a capacitor I am missing that may discharge into my body? I can't see a reason not to tell them to take a hike given their screw up and save myself almost $380 bucks.
The whole damn unit is original to the house, so 17 years old, seems like I am probably going to have to replace it soon anyway so why not try myself.
Justin
Sorry if some of the terminology is wrong.
