Question about Turboair TAS-24H Split System Air Conditioner

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Need a wiring schematic

Getting an E7 error message. cooling works fine but now heat.

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Re: need a wiring schematic - Turboair TAS-24H Split System Air Conditioner Air Conditioners


Posted on Jan 20, 2008

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E7 message

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Dec 02, 2015 | Air Conditioners

3 Answers

E7 error code

e7 problam split ac mando company
what is problam pleez hallp me

Aug 28, 2014 | Air Conditioners

2 Answers

Code error E7

I'm not sure if NewAir is made by Gree -- they supply many. On Gree units, E7 simply means one unit is requesting heating while another is requesting cooling and you can't have both at the same time. So that's the first thing to check. Very simple, very common, doesn't indicate that anything is wrong with the system.

Apr 05, 2014 | NewAir ACS-1200H Split System Air...

1 Answer

Hi I have a hb2400vd2m20 air handler and need to know what wires are needed to hook up to my thermostat its a Honeywell, as of the moment there is no heat pump it just the air handler running. I know there...

Honeywell 5000, 8000, 8000 iaq, prestige, round dial analog, digital Honeywell redlink. 1 heat 1 cool thermostat 3 heat 2 cool thermostat. does the stat u have do conventional a/c and heat pump. red wire is hot wire 24 volts not heating its your 24 volt control power. this will be r on your board and t-stat and red wire. y is for cooling mode and is yellow and will be noted y on both board and t stat. green is fan on the indoor furnace and will be g on board and t-stat and the wire is green. blue is the common side of the transformer labeled b on both board and t-stat. I did not see brown on your schematic I looked up I seen orange which is your reversing valve wire for the heat pump whether its calling for cooling or heat this is what changes the flow of Freon to make it to the indoor coil as warm Freon or cold when called for in heat or cool. the thermostat if a vision pro 8000 needs to be programmed in the installer mode which if this is the t-stat u have u need to read through the heat pump section. the green hooked to the orange doesn't look right on the print but that's the breakdown. heres your schematic

Oct 20, 2013 | Haier 2.0 Ton Multi-position Air Handler...

1 Answer

E7 error code

when you trip breaker it will give e7 code. something pulling to many amps. heat and ac running at same time.

Jul 11, 2013 | Dometic Air Conditioners

2 Answers

Airlux error codes E7

This is probably a "mode conflict" where one of your units is trying to heat while one is trying to cool. You should switch one of those to fan instead or have them both on heat or both on cool.

Jul 09, 2013 | Air Conditioners

1 Answer

I have a new 13 seer rheem 4 ton heat pump system the heat pump won't turn on in heat or in other words it is only working in cooling mode I wired it according to the schematic

On a heat pump the difference from heat to cool is the reversing valve.
In cooling or heating the Y1 terminal will always be energized, this is the contactor.
Depending on brand the reversing valve will either be energized in Heat or Cool. At the outdoor unit check to see if the reversing valve is getting 24 volts in cool, if not check to see if it is getting 24 volts in heating. The easiest way to check if the reversing valve is shifting, is to feel the big copper tube, (it is not the suction line on a heat pump) this is a refrigerant vapor line. It will be cold in cooling and hot in heating.
Check your thermostat installation instructions and heat pump installation instructions to determine the proper terminal designations for your heat pump and thermostat. There are some brands out there that use the B terminal as common to the 24 volt circuit, so you have to check the wiring and make sure this is not common.
If it is energized in Cool then the Y1 and O terminal will be energized. You will have 24 volts from common usually the C terminal to Y1 and O.
If it’s energized in Heat then the Y1 and B terminal should be energized. You will have 24 volts from common usually the C terminal to Y1 and B.
If you get heat when you’re calling for cooling or vice versa then switch the wire between the B and O terminals.

Feb 02, 2010 | Air Conditioners

1 Answer


The only unit I know that energizes the reversing valve in heat is Ruud or Rheem, All other makes energize in cool. When you switch from heat to cool htere is five minute delay. The y energizes the contactor on heat and cool. Make sure your tstat is ok. Rus Keep in touch.

Dec 15, 2009 | Air Conditioners

2 Answers

I have an 18 K unit with E7 error on heat mode

I just installed a YMGI brand mini-split AC and had exactly the same problem. AC worked fine, but when I tried using heat mode I would get an E7 error.

After talking to their tech support I discovered the problem. There was a separate cable that needed to be connected that I'd forgotten to hook up. This cable runs from the internal unit to the outdoor unit and connects a defrost sensor.

In my case I had totally missed that cable when I installed the unit. After running another line and connecting it the unit is now functioning normally.

If this is a new install, then make sure all your cables have been run. If it was previously working, then check to see if one of the cables had become disconnected. If it's not the cable, then it's probably the sensor.

Good luck

Oct 18, 2009 | AmcorAire UCHW-H12AF2 Split System Air...

1 Answer

Adding a Condensing unit to an Intertherm electric furnace

you have the motor connected on more than one speed in heat mode. make sure inly one mode is connected

Oct 19, 2008 | Intertherm P3RA-048K Air Conditioner

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