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View Full Version : Emergency heat on, Aux heat off, fan working.


marianne2641
Dec 14, 2008, 11:56 AM
I do have heat.

The fan outside is working on the heat pump. Inside unit is on.

Heat Pump is set to Aux heat, with AUTO for fan. But the Aux heat is NOT what is on. The Aux light is OFF.


I do NOT have it set to emergency heat, but the emergency heat light is ON. :eek:

What is causing this?

What parts do I need to have to fix this? :confused:

A friend came over, and we replaced the capacitor already.

hvacservicetech_07
Dec 14, 2008, 12:09 PM
Is the bower inside running?

marianne2641
Dec 14, 2008, 12:19 PM
Is the bower inside running?


Yes, the blower is on inside. Everything is working (it is warm), it seems anyhow, but the emergency light is on instead of the aux heat light. This makes me think that I am using the heat strips instead of the heat pump. I do not want a $700 light bill. I have only a tiny income, and that is almost all my income.

hvacservicetech_07
Dec 14, 2008, 12:20 PM
Is it possible that the heat pump is by chance in defrost? Or maybe it has an outdoor thermostat installed? Is the heatpump (outside) still running?

marianne2641
Dec 14, 2008, 12:27 PM
Is it possible that the heat pump is by chance in defrost? Or maybe it has an outdoor thermostat installed? Is the heatpump (outside) still running?

Not sure what you mean by being "in defrost." but there is no ice anywhere on the unit or in the system- inside or outside. Everything is clean, well clean enough.

The unit appears to be working outside. The fan out there is on. But if it is doing any other work out there, I am not sure.

I have one themostat that I am aware of... and that is inside

hvacservicetech_07
Dec 14, 2008, 12:30 PM
Heatpumps have a defrost mode, most models bring on emergency heat when they go into defrost. What do you have the thermostat set on? What is the indoor tempature?

marianne2641
Dec 14, 2008, 12:34 PM
Heatpumps have a defrost mode, most models bring on aux. heat when they go into defrost. What do you have the thermostat set on? What is the indoor tempature?


Aux heat mode NEVER comes on.. . it always say emergency heat...

Right now the thermostat is on 68F. That is the house temperature.

It is set to be at 68F for now. I am trying to be conservative with the heat until I solve this problem.

hvacservicetech_07
Dec 14, 2008, 12:40 PM
What brand is the thermostat? If it is older something may be defective with the indicator lights.

marianne2641
Dec 14, 2008, 12:48 PM
What brand is the thermostat? If it is older something may be defective with the indicator lights.


Honeywell - digital

I am trying to determine the model number... it looks similar to, but not exactly like this one, but it is not programmable.

http://www.gogeisel.com/geiselonline/support/Honeywell/T8001F_T8024F.pdf

Could there be a compressor problem?

marianne2641
Dec 14, 2008, 12:52 PM
honeywell - digital

I am trying to determine the model number....it looks similar to, but not exactly like this one, but it is not programmable.

http://www.gogeisel.com/geiselonline/support/Honeywell/T8001F_T8024F.pdf

could there be a compressor problem?

PS
More like this one:
http://www.pexsupply.com/img/productImages/Honeywell%20Digital-Non%20Programmable%20Thermostat.jpg

hvacservicetech_07
Dec 14, 2008, 12:55 PM
If the heat pump is running I would say the compressor is fine. Is it a honeywell?

marianne2641
Dec 14, 2008, 12:59 PM
If the heat pump is running I would say the compressor is fine. Is it a honeywell?


That is good to hear.

Yes it is a digital honeywell... simple style, not programmable... look at previous messages... I give links to try to show what it looks similar to.

marianne2641
Dec 14, 2008, 01:01 PM
If the heat pump is running I would say the compressor is fine. Is it a honeywell?


The heat pump is a York...

The thermostat is a digital honeywell. See previous descriptions

Someone said it might be a "condensor for the motor" does that make any sense?

hvacservicetech_07
Dec 14, 2008, 01:02 PM
Switch the thermostat to emergency heat,then back to heat. See what happens.

hvacservicetech_07
Dec 14, 2008, 01:02 PM
What is the outside tempature?

marianne2641
Dec 14, 2008, 01:16 PM
Switch the thermostat to emergency heat,then back to heat. See what happens.

outside temp = 56F

switch to EMER heat makes:
the inside unit blower turns on
the outside fan does NOT come on
a black arrow points to EMER setting

switch back to aux - regular - heat:
the inside unit blower turns on
the outside fan comes on
NO black arrow appears on thermostat under AUX

in both cases, the "flame" icon appears between and above the 2 numbers... ex, 6^9

hvacservicetech_07
Dec 14, 2008, 01:22 PM
My guess is that everything is working fine. Emergency icon is not showing up in regular heat mode,correct?

hvacservicetech_07
Dec 14, 2008, 01:24 PM
I'm not sure exactly what is making you think that you are running emergency heat?

marianne2641
Dec 14, 2008, 01:29 PM
My guess is that everything is working fine. Emergency icon is not showing up in regular heat mode,correct?


There is no emergency icon... there is just one flame that I see... it is situated between the 2 numbers...

6^8
7^2

the flame is closer to the word EMER than to the word AUX... I was told the EMER heat was on, and not the AUX heat...

I was expecting that the icon location would be

EMER... AUX

^ 68 for EMER

68 ^ for AUX

Maybe it is the way we read the thermostat..

anyhow, since the OUTSIDE fan on the heat pump is coming on, while on the regular heat setting, that means we are using the AUX heat, and not the EMER heat?

hvacservicetech_07
Dec 14, 2008, 01:36 PM
I'm guessing you are looking to deep into this, the icons are pretty close together,as long as it is not showing emergency heat on the display screen and the heat pump is coming on outside,you should be fine.

marianne2641
Dec 14, 2008, 01:39 PM
I'm not sure exactly what is making you think that you are running emergency heat?


A service man came out here to service my unit - it was supposed to be just a routine cleaning... :(... and a general check of the system to be safe for colder weather.

He told me "outdoor unit needs condenser for motor," my outdoor fan was bad, or going bad, and that my unit was only using emergency heat, and not regular heat... and I needed for him to come back and put in this fan motor thing... and that would be an additional $375

:confused:

hvacservicetech_07
Dec 14, 2008, 01:41 PM
Hmm, You said the fan motor is still running, correct?

marianne2641
Dec 14, 2008, 01:42 PM
Hmm, You said the fan motor is still running, correct?


Yes, outside, it is just spinning away

hvacservicetech_07
Dec 14, 2008, 01:46 PM
Maybe the fan motor hasn't went out yet. Although,that doesn't mean it won't. If it does go out for some reason,the thermostat will switch over to emergency heat,if the heat pump is not keeping up. I suggest you get the motor checked before is does go out.

marianne2641
Dec 14, 2008, 01:51 PM
Maybe the fan motor hasn't went out yet. Although,that doesn't mean it won't. If it does go out for some reason,the thermostat will switch over to emergency heat,if the heat pump is not keeping up. I suggest you get the motor checked before is does go out.


How does one check the motor to see if it may present a future problem? Use a voltmeter? I have a friend with one, I think.

You are a real blessing. I am an unemployed single mom with 2 kids, and I only have $800 a month to live on. I am trying to spend wisely any money I have.

hvacservicetech_07
Dec 14, 2008, 01:54 PM
If it isn't making any obvious sounds,IE bad bearings. Use an amp clamp to check the amp draws, there is a tag on the unit that shows what the amp draw should be. If you have a friend that is handy,buy the motor over the counter, it's not hard to replace.

marianne2641
Dec 14, 2008, 02:02 PM
If it isn't making any obvious sounds,IE bad bearings. Use an amp clamp to check the amp draws, there is a tag on the unit that shows what the amp draw should be. If you have a friend that is handy,buy the motor over the counter, it's not hard to replace.

There was some noises about 2 weeks ago, but my friend said it was the capacitor, that it was loose, or had to have a screwdriver pushed against it to keep it quiet, and getting old... so we replaced it... then the grate around the coils had some screws missing... that makes some noise

But the fan is not where the noise was coming from, anyhow, as far as we know.

The fan is not making any noises at this time... everything out there is quiet

So I can check the amps, but not the bearings?

hvacservicetech_07
Dec 14, 2008, 02:07 PM
Well, you can wiggle the shaft on the fan motor, make sure there is no movement in the shaft, if the motor isn't making noise the bearings are probably OK. I would leave it alone until you have anymore problems. Keep an eye on it.

marianne2641
Dec 14, 2008, 02:17 PM
Well, you can wiggle the shaft on the fan motor, make sure there is no movement in the shaft, if the motor isn't making noise the bearings are probably ok. I would leave it alone until you have anymore problems. Keep an eye on it.



Thank you so much. I appreciate all you have told me. Learning to understand my own unit helps me, sparing unnecessary expenses will give us a better Christmas, and now I have money for other bills. You are very kind and helpful. We all give you a big hug for Christmas, and a big thanks.

Bye

hvacservicetech_07
Dec 14, 2008, 02:30 PM
No problem at all. Take care and merry Christmas.