Question about Heating & Cooling

1 Answer

We recently bought a new house (to us). It has a Goodman heat pump and Goodman Electric backup furnace(A36-15) with a Janitrol stat. I switched the stat to emrg. Heat when the temp got below Frezzing. The heat pump and the heating elements now both run at the same time. The outdoor unit will run when it is 15 degrees outside still. I check the out outside stat to see what it was set on and the outside one is set at 40 degrees. Is this normal??? thanks Jon

Posted by on

  • 1 more comment 
  • theemudracer Dec 11, 2008

    The T-stat has only W2 on it with a White wire hooked up to it.

    Orange wire is in the O spot and red wire is in the R spot.

    Hope this is what you wanted.

  • theemudracer Dec 13, 2008

    I have a meter. I had 24 volts on the yellow wire with the EH off and the system running. When EH was on I had no voltage on yellow for awhile (5 min) and then it would kick on.

    I bought a new stat and got it hooked up today. EH is on and no compresser running yet. (CROSS FINGERS)

    thanks and I will let you know if I have problem again.

  • Danny Clark
    Danny Clark May 11, 2010

    No, its not normal for the HP to operate when in Emergency heat mode.

    I would start by looking at how the T-stat is wired.

    is there a jumper between W1 and W2?

    where are the orange, white and red wires hooked up to?



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 334 Answers

If you have a volt meter, check to see if you have 24 volts coming from the thermostat on the yellow wire.

If you do, and it is set on emer heat, you have a bad T-stat.

It looks like it is wired properly.

If you have no meter, you could try changing the stat, I reccomend Honeywell or white rodgers.

Let me know if you eliminate the Tstat as the problem and we can go from there.
Chances are its the stat.

Posted on Dec 12, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What's wrong with my furnace?

The relay for the motor is stuck or the points inside the relay are arced closed. Replace the relay.

Apr 26, 2016 | Goodman Janitrol Amana Goodman Janitrol...

1 Answer

Goodman furnace a36-20 fan runs non stop

is green wire from thermostat or from outdoor. retrace and change as needed. If not Goodman has a tech support number you can call while looking at unit.

Jun 21, 2014 | Goodman Heating & Cooling

1 Answer

I have a goodman cplj30 heat pump and I'm trying to install a hunter 44905 thermostat but I'm not I have it wired correctly. The wiring is as follows. R to R Y to Y G to G O to O W and E...

The Y, G, O and C are correct, the W and E are not tied together.
The W is the main cal for heat and should be wired into the heat pump reversing valve wire, usually blue but you need to check. E goes to to E and is for emergency heat, I.E. it turns on your furnace when it gets too cold for the heat pump to keep up.

The t-stat operation in heat goes like this:

T-stat calls for stage one heat via the W terminal, if after a few minutes the temp does not start to rise the t-stat call s for backup heating via the E terminal, this turns on your furnace or heat strips in your air handler if you have electric heat.

Jun 14, 2011 | Heating & Cooling

1 Answer

I hooked up a coleman electric furnace to a janitrol condenser heat pump . The t-stat wires on electric furnace are red white green and yellow. I added a blue for common off of transformer for digital...

Hi, first of all you need to get a hand full of 5 amp auto type fuses and install one on the hot leg of the 24 volt secondary side of the transformer. Just use 2 female crimp on connectors and put the fuse in the middle of the hot wire. Saves $$$$ on replacing transformers when you have a dead short on the low or high voltage side of any transformer, just a trick of the trade, food for thought. Fuses are much cheaper. On your electric unit, you may not need the common on this to operate the digital stat if it has batteries. This may be your dead short. On the Janitrol condenser, the red is your 24v as you no. They are using blue in place of yellow for cooling. Red is hot, W is heat, G for fan, and blue is cooling on this Janitrol. Keep in mind you are connecting to a heat-pump also, so make sure the wiring is correct. Are you installing this for secondary Heat?? More then likely, the blue common you have added is the dead short as the janitrol uses the blue for a cooling relay in place of yellow. Anyway, use the 5 amp fuse, trick of the trade to save on the transformers. Please keep me posted, as I know know you have this under control.
A/C, Heating, & Refrigeration Contractor. Good Luck!

Feb 09, 2011 | Coleman Heating & Cooling

2 Answers

My Janitrol GU125-4 furnace will not shut off; cannot be turned off at thermostat, and heats the house to 80 degrees. I have to cut it off at the breaker. What is the fix?

Hi, it sounds like you may have a short in the thermostat or in the wires coming from the thermostat. The red and white wires are for heat. If you open the filter door, there should be terminal screws labeled R, W, Y, G and the 4 or 5 strand t-stat wire going to it. Just disconnect the W wire and replace the door, if the heater stays off you have a short somewhere in the thermostat circuit. Unless you just replaced the T-Stat recently, a rodent may have chewed through the wire or a nail pierced the wire, or ???,  you get the idea. You may need to pull a new T-Stat wire.  Good luck and comment back if you have any other questions.

Jan 09, 2010 | Goodman Heating & Cooling

1 Answer

I have outside Goodman-Janitrol furnace and air unit and

two things to try first to get you pointed in the right direction. First disconnect the R or RH wire from the T-Stat. If the furnace turns off (Stops firing w/ fan to turn offabout 90 sec. later) then you more than likely have a bad Thermistat. If it continues to run Pull the R wire from the Furnace circuit board. put door back on furnace if it stops you have a short in the wire. Still Running? Most likely a bad curcuit board. Hope this helps.

Oct 12, 2009 | Goodman GMS90703BXA Heater

1 Answer

My Aux heat seems to run all the time.

Is it cold enough in your area to lock out the heat pump?If the heat pump isnt operating correctly the aux heat will come on then too.

Jan 04, 2009 | Goodman PHKJ048-1 Air Conditioner

1 Answer

I replaced my Janitrol 7 wire thermostat with an RTH7500 which now controls my heatpump system. The switches on the Janitrol were cool - off - heat - Em Heat. Does that mean I have auxiliary heat? There is...

There should be electric heat strips in the airhandler.

They automatically come on when the unit goes into defrost, the thermostat is turned up more than 7 degrees over the indoor temp or if the outdoor temp is just so cold the HP cannot keep up.

Tat is your auxillary or emergency heat.

What does the new t-stats installers booklet say that the 0170 function and #2 #7 options are for?

If it is for gas vs elec heat then set it on the elec option.

The difference is that in gas heat systems the blower comes on a few min AFTER the furnace fires up to allow the heat exchanger to get hot.
In an electric furnace the blower has to come on emediatly because the heat strips get hot emediatly and if the blower is delayed the system will shut of in high temp overload.

Dec 18, 2008 | Heating & Cooling

1 Answer

Electric furnace blows cold air before and after warm air.

It is normal. Your house has to go down a couple more degrees because the heat pump is not working. You can solve this by rewirng you thermostat. Take off the wire that goes to Y and tape off. Then take the wires that are marked w and e or w1 and put the wires to yellow. Do not run ac with it wired like this. If you need more information please post me back

Nov 29, 2008 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

196 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

3239 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Tim Whalen

Level 3 Expert

3074 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides