WTF Heat pump confusion again

[hvac69]

Sounds like the rev valve is fubar. When you get it running don't shut it off keep engaging the rev valve over and over to see if it finally switches. If it doesn't, get your pressure diff as great as you can, cardboard over condenser and try rev valve again, if you don't hear it change but only a click I am only guessing that where your problem is.

[socotech]

After you waited ten minutes for unit to come back on, did you check to see if you had 24v on "y"? Is it possible the thermostat has a built in time delay and the condenser has a time delay. I have found this sometimes and the wait can be longer than ten minutes. I would start with the basics on this.

1) figure out what time delays you have
2) verify low voltage call for heat/cool
3) check charge
4) verify reversing valve operation

It does sound like you have a bad reversing valve, but that isn't what is keeping unit from coming on.

[SBKold]

When you say it doesn't come on does that mean the contactor is closing and fan runs but compressor is out on ol?.

Or is the unit not doing anything?

[jeffrey43]

Contactor pulls in compressor kicks on for a second fan does not come on at all then it all shuts down.

[SBKold]

Something wrong with controls. Possibly the board.

[littlebigdad]

If you have it in cooling mode the cond. fan should come on with the compressor. I always take the time delay out of the stat since the board has a time delay

[SBKold]

Something wrong with controls. Possibly the board.

Pressure switch on discharge line between RV?

[Brent Ridley]

Ok. This thread has me all messed up. The OP hasn't communicated the issue well. It first sounded like a RV issue now it's sounds like a control wiring issue.

To the OP, HVAC 101. Check all the basics. Test low voltage. Confirm low voltage in correct areas. Confirm high voltage in correct areas. Ohm out all pressure switches and sensors. Connect your gauges when you first arrive and don't take them off the system until your finished.

Once you do this, coupled with advice already given; The problem should become pretty apparent.

[jeffrey43]

Just to let you all know I did all the checks and balances and it wound up being the circuit board. I guess it was intermitent and screwed the pooch when it decided it wanted to. HO is pleased because it was under warranty, I am pleased because it is over. I have little expeirience with circuit boards and some of us are still learning. So for those of you that want to act like they know it all, you dont and nobody does!

[Brent Ridley]

Jeffrey,

Great to hear that you found the problem!

Learning. That's what this site is for. I learn something new on here almost daily. Example: Rundawg schooled me on a timed defrost issue just a few days ago.

From what I read, I don't think anyone was acting as if they "know it all" and I certainly hope that I wasn't the one who came off like this.

We are just a group of guys who are passionate about HVAC and volunteer their time in an attempt to help out/receive help from others. We can only help others if the correct information is relied to us. I hope you didn't get discouraged by my comments or someone else's because we need guys like you around here!

Good luck!

[uniservice]

I suspected the internal time delay on the board, but you need to verify power coming to the board thru the Y wire, and then verify the Y power leaving the board and going thru the pressure switches to the contacter. That would have showed the problem was the board. As you work with these units, it will come easier. Just working on a few of them over time will make you feel less intimidated. Take the time (when you have it) to play with a few things in the controls, and see how they react. At the very most, you may blow a control fuse, but you'll gain an understanding of what the different components do, and how the equipment acts when they don't do what they're supposed to. Make sense???

[timebuilder]

Just to let you all know I did all the checks and balances and it wound up being the circuit board. I guess it was intermitent and screwed the pooch when it decided it wanted to. HO is pleased because it was under warranty, I am pleased because it is over. I have little expeirience with circuit boards and some of us are still learning. So for those of you that want to act like they know it all, you dont and nobody does!

I'm sorry, I must have missed a post where someone was "acting like they know it all."

1) keep learning

2) improve your attitude

[timebuilder]

Its a GSZ1302416A Goodman Heat Pump I installed on Augest 29th of this year. The HO has been running this thing in heat mode only for the last 2 and a half months. They call last week and say its not working.

Okay. So this is a residential install.

Riddle me this, Batman.

Why is this post in the Tech to Tech COMMERCIAL forum???