Need help with heat pump issue!!

[Reverend]

I cant get the heat to turn on. we just moved in to this house newer American standard heat pump. new Honeywell fancy thermostat. Tried all the settings, have voltage at valve in all settings. it will switch if i pull either wire. but cant get a controlled switch over any ideas. thanks folks

 

[Rockhead261]

Are the evaporator bearings good?

Sent from my SCH-I545 using Tapatalk 4

 

[bazar01]

I cant get the heat to turn on. we just moved in to this house newer American standard heat pump. new Honeywell fancy thermostat. Tried all the settings, have voltage at valve in all settings. it will switch if i pull either wire. but cant get a controlled switch over any ideas. thanks folks

I cant get the heat to turn on. we just moved in to this house. newer American standard heat pump.
Was unit inspected before purchase?
new Honeywell fancy thermostat.
What model?
Tried all the settings,
What settings?
have voltage at valve in all settings.
Just wonder what valve and settings were you talking about
it will switch if i pull either wire. but cant get a controlled switch over
Which wires? Did you mean Thermostat Control wires? What color?

 

[Reverend]

I cant get the heat to turn on. we just moved in to this house. newer American standard heat pump.
Was unit inspected before purchase?
new Honeywell fancy thermostat.
What model?
Tried all the settings,
What settings?
have voltage at valve in all settings.
Just wonder what valve and settings were you talking about
it will switch if i pull either wire. but cant get a controlled switch over
Which wires? Did you mean Thermostat Control wires? What color?

Programmable Honeywell thermo, model rth8580wf. it was inspected but had to replace after the move in due to sudden stoppage on the floor. Have voltage at orange wire at switch over valve in all modes of thermostat. Heat ,cold and all programmable opions. I.E set up for heat up with no aux heat and o or B opition. Can pull orange wire from switch over valve and I have heat. I think is the circuit board. Am I making any sense

 

[crazy wheel]

Can't you set it to Emergency Heat for tonight?

 

[crazy wheel]

Lets back up.

You have a heat pump.
Do you have any Aux heat?

 

[BD1]

My guess it's in the stat setup.
Those programmable **** as far as I'm concerned. Go through the book slowly and follow the bull$hit instructions. Brother in law had same problem.
He didn't program it correctly and the dam thing goes to default settings. His model, NO HEAT from 10 PM to 6AM. Started up at 6 AM.
If you can get into memory , scroll for OVER RIDE. Then push arrow UP to raise set temp to what up want. Oh, not being a smarta$$ but is battery installed ? Good luck.

 

[crazy wheel]

I'd bet on the stat not being set up right also.

 

[tgb]

Your t-stat needs to be set for o powered for cooling, presently it is set for b which is powered for heat so it is energizing reversing valve giving you cooling, you should not have voltage on o in heat.

 

[bazar01]

Programmable Honeywell thermo, model rth8580wf. it was inspected but had to replace after the move in due to sudden stoppage on the floor. Have voltage at orange wire at switch over valve in all modes of thermostat. Heat ,cold and all programmable opions. I.E set up for heat up with no aux heat and o or B opition. Can pull orange wire from switch over valve and I have heat. I think is the circuit board. Am I making any sense

Since thermostat was replaced, it was not programmed or set up correctly. You may need to call the a/c shop that installed the new one to set it up correctly. Ask them to leave you the installation guide that came with it.
If you are or have somebody handy, as the last post stated, check the reversing valve setting if it is energized in cooling or heating. Rewire the thermostat once you find that out. Then get an installation guide for the thermostat and set it up for 1st stage on heat pump and second stage for electric aux heat. The owners manual will not help with initial set up or programming.
Here is a video of the install;

Good luck!

 

[Reverend]

I have all the settings set the way they should be. Is it possible that pc board that those wires go through is bad? It does not have aux heat we live in Florida still have not needed the heat yet. But we will

 

[bazar01]

Do you have a copy of the installation guide? If you do, there is a function test feature in programming mode where you can test the fan, cooling and heating functions of the thermostat. You can basically test each operation thru the thermostat screen.
That is the only way you will find out if you got the wiring and programming done correctly.

 

[crazy wheel]

Could the "O" be shorted to another wire? Causing it to be powered all the time.
I have my doubts that it is the control board, not saying that it would be impossible.


Best bet, if you do not see anything that is obviously wrong, call the tech back and have him trouble shoot the problem.

Good luck

 

[bazar01]

I have all the settings set the way they should be. Is it possible that pc board that those wires go through is bad? It does not have aux heat we live in Florida still have not needed the heat yet. But we will

Is this a split unit with outside heat pump condenser?
Put thermostat in system test.
Set test function to 1 in cooling mode so compressor and fan ON.
Reversing valve should be energized. and it should cool.

Now set test function 3 in heating mode so compressor and fan ON.
You should get heat if function 170 is set to heat pump during set up,
Test orange wire if you do not have 24VAC (from outdoor unit)
Reversing valve should not be energized and should get heat.
If not, thermostat could be bad or there is a wire issue.

 

[Lewisthepilgrim]

heat pumps generally use a 24v transformer to send a low voltage signal to the compressor contactor, thermastat and fan motor. It is very common for a grounded thermastat wire to cause exessive current draw through to low voltage system and therefore blowing the transformer. But you said yours works when you pull a wire? what wire??

bad thermastats are also very common. I have ran into quite a few bad ones this season.

Go buy a $20 home depot special that you like

 

[Reverend]

Is this a split unit with outside heat pump condenser?
Put thermostat in system test.
Set test function to 1 in cooling mode so compressor and fan ON.
Reversing valve should be energized. and it should cool.

Now set test function 3 in heating mode so compressor and fan ON.
You should get heat if function 170 is set to heat pump during set up,
Test orange wire if you do not have 24VAC (from outdoor unit)
Reversing valve should not be energized and should get heat.
If not, thermostat could be bad or there is a wire issue.

Yes air handler inside the garage and condenser outside. This is my first time messing with heat pump or ac before. I did not use the split unit unit option due to not knowing. Will try that as soon as I get home.

 

[pop pop]

This is my first time messing with heat pump or ac before.

Somehow I just knew.
Good luck and hope you get it sorted out. There is lots of help on this board.

 

[Reverend]

Is this a split unit with outside heat pump condenser?
Put thermostat in system test.
Set test function to 1 in cooling mode so compressor and fan ON.
Reversing valve should be energized. and it should cool.

Now set test function 3 in heating mode so compressor and fan ON.
You should get heat if function 170 is set to heat pump during set up,
Test orange wire if you do not have 24VAC (from outdoor unit)
Reversing valve should not be energized and should get heat.
If not, thermostat could be bad or there is a wire issue.

Ok I am about to pull the pin on the dam grenade!!! It is a split unit, I cant find anywhere how to put this thing in test mode a honeywell rth8580wf. I installed the thermostat myself ( which could be the main issue). It blows cold no matter what mode I set it in heat, cold and tried every combo of settings in the set up. And the switch over valve is always energized. I checked it with a meter. The only way i can get the valve to switch over to heat is to manually pull the orange or blue wire off the switchover valve inside the unit outside or if I pull the plug to the card it will click. Since we just bought this house I have no idea if the heat ever worked.... About to pull what little hair I have left out

 

[Reverend]

Somehow I just knew.
Good luck and hope you get it sorted out. There is lots of help on this board.

I can fix the AC on a car or an airplane, just never dealt with this stuff before..... And by the way thanks to all who have tried to help me so far....

 

[bazar01]

Ok I am about to pull the pin on the dam grenade!!! It is a split unit, I cant find anywhere how to put this thing in test mode a honeywell rth8580wf. I installed the thermostat myself ( which could be the main issue). It blows cold no matter what mode I set it in heat, cold and tried every combo of settings in the set up. And the switch over valve is always energized. I checked it with a me
ter. The only way i can get the valve to switch over to heat is to manually pull the orange or blue wire off the switchover valve inside the unit outside or if I pull the plug to the card it will click. Since we just bought this house I have no idea if the heat ever worked.... About to pull what little hair I have left out

The heat probably worked until after the thermostat change. You probably won't need heat in Florida.

If you are ready to throw the towel, just call for a a/c service tech and swallow that little pride left.. Probably will charge you 2 hours of labor.

If you still want to give it a try, let me know. You need to check your initial programming especially function 170. This will control the reversing valve switching.
Touch System on the screen, then touch the bottom center blank button, scroll to function 170 and set the value to 2 (for heat pump without aux heat) or 7 (with aux heat)

 

[Reverend]

Well it has been a very long time since I have been on here, life happens know what I mean.

Well as suggested I swallowed my pride and called someone who knew what the hell was going on. It was in fact as I suspected a setting issue. I was not home for it but, 15 min and 70 bucks later it was set right and has worked as advertised ever since. Thanks gents for the info.