Help with a HeatPump Diagnosis!

[35avg]

Hi there,
I just need some help regarding the diagnostic for a heatpump. It was working quiet well last winter until one day I turned the unit on and it didn't work. Then after waiting a few minutes I moved the lever to the cooling side, just to test the cooling function and there was no problem with it! Then I turned it off because of the winter weather. Anyways this past summer the unit worked pretty good. This winter after trying to turn on the Heat I remembered last incident and ofcourse the unit didn't turn on.
Ok, the thing is, I'm not a HVAC specialist, but I liked to know haw things work as everyone else, althogh I have a little knowledge on cooling systems, heat pumps are not quite familiar for me, anyways I climbed up the roof, took of the unit (goodman packaged system) cover and started to checked averything according to the diagram that's inside of one of the covers. I also took out a PCB to cheked the miniature relays and passive components that it has on it. All the things I checked were fine, I turned the heat unit on to test it with power. Double check for signals present according to the diagram, and it seems like everithing is ok!
That is the reason I'm calling a HVAC specialist to check the unit. I just need some advice on what the specialist could tell me and weather I should ask him or not about some special device to check.

Any comment will be most welcome!
Thanks in advance to all!

[gevans]

"Any comment will be most welcome!"

Here's mine: Hire a pro. From your description, you don't know enough to repair a heat pump yourself.
I don't mean to sound rude, but you can do far more damage than good messing with a complicated machine you don't understand. You will be better off in the long run if you just hire a pro.

[davefr]

"Any comment will be most welcome!"

Here's mine: Hire a pro. From your description, you don't know enough to repair a heat pump yourself.
I don't mean to sound rude, but you can do far more damage than good messing with a complicated machine you don't understand. You will be better off in the long run if you just hire a pro.


Re-read the OP's post. He already said that he's going to get a pro to look at the unit.

OP, if you hire a competent pro he'll already know what to look at. You won't need to tell him what to look for. Just describe all the symptons as best you can and let him take it from there.

Likely Possibilities:
- Thermostat
- Control board
- Reversing valve
- Other electrical

[gevans]

My apologies.:)

[35avg]

Ok! :)

Thanks for your comments!!

I just didn't want to look as a out of the theme guy.
Unfortunatelly, People can take advantage of that!

[totaleclipse]

Ok! :)



I just didn't want to look as a out of the theme guy.
Unfortunatelly, People can take advantage of that!

95% of the people we see everyday have no knowledge of how the unit heats and cools there house, they just know when they mess with the thing on the wall, they can adjust the temp in the house. I am not saying that there are not people out there that take advantage of people, I refuse to callt these people techs, but if you hire a repuitable company to look at your unit, you shouldnt have to worry about anything but who you are going to play golf with this weekend. Like Davefr said, if you want to be the most helpful to the tech, tell the tech what the symptoms are. He should know where to go from there. I know some techs dont like when customers stand over there shoulders, but I encourage it. I invite the customer to look at the unit with me (with in reason, I dont ask an 80 year old lady to join me in her 2 foot crawl space), tell them that they are welcome to ask as many questions that they can think of, and if they join me I tell them what I am doing/checking and why.