Question about Fedders Y Chassis AEY12F7E Air Conditioner

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Heat thermostat not keeping constant temperature

This unit has the electronic control panel. I set the unit at 66 degrees on the heat energy saver mode and the unit will heat to warm, but then will let the room cool to much before the heat comes back on.
Does the thermostat need to be changed? If so, where is it located.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Joe_Rex
  • 114 Answers

SOURCE: Water is not dripping from window A/C unit, air is cold but damp

HELLO .. HOPEFULLY YOUR UNIT SLIDES OUT OF THE A/C HOUSING, IF IT DOES REMOVE IT. (THERE MAY BE A FEW SCREWS HOLDING IT IN PLACE USUALLY BEHIND THE FRONT GRILL) PUT DOWN SOME OLD RUGS FIRST AND HAVE SOMEONE HELP YOU SLIDE IT OUT. GET OT THE GARDEN HOSE AND SPRAY NOZZLE. PROP UP THE FRONT OF THE UNIT SO IT DRAINS TO THE REAR. BOTH THE EVAPORATOR COIL AND CONDENSER COILS SHOULD BE CLEAN. YOU WILL NOT SEE DIRT ON THE OUT-SIDE OF THE COIL ... IT WILL BE ON THE INSIDE HIDDEN BY THE CONDENSER FAN BLADE. BE VERY CAREFUL NOT TO BEND THE FAN BLADE WHILE INSPECTING OR WASHING. BE EXTREAMLY CAREFUL TO COVER THE MOTOR AND ELECTRICAL CONTROL BOX WITH PLASTIC BAGS TO ENSURE ALL ELECTRICAL COMPONENTS STAY DRY. FACTOID: 90% OF AIR CONDITIONERS THAT "DONT COOL AS WELL ANYMORE" IS DUE TO DIRTY COILS. THERE IS ALSO A TUBE OR CHANEL THAT DRAINS THE WATER FROM THE EVAP (FRONT) COIL TO THE BACK OF THE UNIT. THAT CONDENSATE WATER IS SUPPOSED TO ACCUMILATE IN A SNALL RESEVOIUR WHERE THE SLINGER RING ON THE OUT SIDE COIL FAN BLADE PICKS IT UP AND HELPS COOL THE HOT CONDENSER COIL. SOME OLDER UNITS MAY NOT HAVE A SLINGER RING AROUND THE OUTSIDE OF THE BLADE. NOW ... MAKE SURE YOUR OUTSIDE FAN BLADE IS CLEAN. AS WELL AS THE INSIDE BLOWER FINS ON THE "SQUIREL CAGE". NOW THAT YOUR UNIT IS CLEAN AND YOU CAN SEE CLEARLY THROUGH BOYH COILS, GO AHEAD AND OIL YOUR MOTOR. CHECK TO SEE IF YOUR FAN MOTOR HAS "OIL CAPS" USUALLY THEY ARE AT THE TOP OF THE 2 ENDS OF THE MOTOR. IF THERE ARE CAPS REMOVE THEM AND USE A STRAIGHT WEIGHT (NON-DETERGENT OIL). SOME WINDOW A/C'S UNDER 12,000 BTU'S ARE SEALED UNITS. IN THAT CASE YOU WILL HAVE TO REMOVE THE UNIT FROM THE WINDOW MOUNTING BRACKET. AND FOLLOW THE SAME PROCEEDURE AS LISTED ABOVE. GOOD LUCK AND STAY DRY.

Posted on Jun 25, 2007

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  • 105 Answers

SOURCE: A/C does not properly cool.

Possible faulty run capacitor or overload protector. Call a repairman.

Posted on Jul 15, 2007

  • 1 Answer

SOURCE: danfoss thermostat control frozen at

See the link on the Danfoss site.  This has helped me http://heating.consumers.danfoss.com/xxNewsx/5dbcb2f9-e888-4d2d-9761-7470786749c9_CNP1.html

Posted on Dec 09, 2008

tborn6
  • 700 Answers

SOURCE: Honeywell T87f 3855 Doesn't Activate Heater

thats becaue you need more than this zone working like you said about the master/slave this zone is a slave.

Posted on Jan 25, 2009

electrodynam
  • 35 Answers

SOURCE: thermostat window ac turns unit on and off 8 degrees above se

the unit may be drawing the cool air it just released back into itself,plus the air close to the unit may be a little cooler than the air in the rest of the room.

Posted on Mar 19, 2009

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1 Answer

CWC-1600 cools constantly


More than likely, the thermostat on the unit is going bad. If the coils haven't been cleaned recently, then I suggest that you unplug the unit, clean it well and then cycle it back on. If it continues, then the thermostat that's located within the unit is going bad. Please refer to the owners manual for proper service and maintenance for your unit. https://www.appliancefactoryparts.com/content/pdfs/140265-1.pdf

Feb 04, 2017 | Heating & Cooling

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My thermostat is set on 68 degrees and it shows room temperature is 68, but the furnace still kickson, Honeywell said it has a 1 degree difference. so what's the problem then?


Yes there is a one degree tolerance, in fact my heater just kicked on and it is set to 67 and the inside temperature reads 67. It is also a Honeywell.

Dec 28, 2016 | Heating & Cooling

1 Answer

WHAT DOES IT MEAN WHEN HEAT IS SET 66 AUX IS FLASHING


If it is a heat pump if the ambient I door temp is not than 3 degree s lower than 66 it utilizes the aux heat ( heat strips) to help the unit achieve your desired temperature set point faster. Also the heat pump does need help if trying to overcome really cold temperatures. Once set point is achieved the heat pump should be able to keep the home at the set point without aux heat. But the flashing may just be to let you know that the heat strips are in use at the current time. See if when the temperature gets close to your set temp if it goes away. If not a heat pump it may always flash to just tell you heat strips are in use. Some homes mostly trailers only have heat strips but on heat pumps heat strips are there to help heat pump get to your desired temp. But when your heat pump can maintain the temp without the strips is where it saves power. Also heat pump thermostat hVe emergency heat settings. This scares alot of people but if your heat pump isn't working and you have to switch it to emergency heat until you can get it fixed,. That means that the system is only using heat strips and not utilizing heat pump at all. Power bill may be a little higher but remember, most trailer homes only have heat strips and if you do not use emergency heat in this situation your heat strips will only heat home 3 degrees below set point on thermostat to allow heat pump to bring it up the other 3 degrees. If heat pump isn't working correctly you will always be 3 degrees colder than what you set you thermostat at. Maybe too much info but it's prolly just your aux heat on helping system achieve the desired temp you set thermostat too.

Oct 24, 2016 | Heating & Cooling

1 Answer

We have a new a/c and the system has heat strips. For a/c. we have had the thermostat set on AC at 72degrees. Now that it is getting colder and may need some heat in the house, do we switch the...


If your thermostat has an emergency heat setting this means you have a heat pump system.
Yes you need to set the thermostat to heat for heating the house.
The emergency heat setting should never be used unless your outside unit is not functioning.
The emergency heat setting overides the heat pump (the outside unit will not be energized).
The emergency heat setting will run the auxillary heat (heat strips) only.
When the thermostat is set in the heat position the heat pump will run to heat your house.
If the heat pump can't keep up (extreme cold) then then the auxillary heat will kick in to augment the heat pump until it satisfies the thermostat settings. If your room temperature gets 2 degrees below your thermostat setpoint, your auxillary heat will kick on. Example, say you are going to be gone a couple of days and you turn your heat down to 60 degrees. When you return and it is 60 degrees in your house, you turn the thermostat up to 70 degrees. Since you are turning the temperature up 2 degrees or more (10 degrees in this case) from the 60 degree room temperature then the heat pump will come on and the auxillary heat strips. The unit will continue heating like this until the temperature in the house gets to 69 degrees and the heat strips will turn off and the heat pump will continue to run until the 70 degree setpoint is reached.
Hope this helps.
SeagullAC

Sep 15, 2011 | Heating & Cooling

1 Answer

I just installed a honeywell 5-2 progammable thermostate.. Everything is hooked up fine and I have my days, hours wake, sleep, leave...etc all set, but when it goes on.. for example, I have it set for...


You didn't include a model number, so it's hard to know for sure - but I'll take a stab at this one. Many of these t-stats have a programmable offset to reduce "hunting". This can be as little as 1 degree or more than 2 degrees.

This means if you set the offset to 1 degree and the room temperature to about 65 degrees, the furnace will heat the room until the t-stat registers a rising temperature of 66 degrees. The furnace shuts off and will not turn on again until the t-stat registers a falling temperature of 64 degrees. The average is 65 degrees, and prevents the furnace from starting and stopping numerous times instead of just once with the 1 degree offset.

You can further reduce the number of furnace start and stops by increasing the offset to 2 degrees. This would work like this when the t-stat is set to 65 degrees and the room is cool:

Room Temp Furnace
63 On
64 On
65 On
66 On
67 On
68 Off

The room is now warm and heat or furnace is off. The room begins to cool like below:

67 Off
66 Off
65 Off
64 Off
63 Off
62 On

With a 1 degree offset, the room temperature varies +/-1 degree (about 2 degrees total). With a 2 degree offset, the temperature about varies +/ -2 degrees (about 4 degrees total).

Also, when the thermostat shut the heat off, the heat that was made is delivered to the space instead of wasted by sending outdoors - so the room will get a little warmer even though no fuel is being burned. The same holds true at the other end. When the t-stat turn heat on, fuel is burned, but there's little heat until the source has reached the optimum temperature and then the heat is delivered to the space.

I hope this helps & good luck! Pleas rate my reply - thanks!

Jan 24, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

I just got a new heating unit installed. However it runs constantly. If the target temp is 68 degrees it will hit 68 degrees and just keep running. It does the same at 63 degrees. Is this normal?


Dear friend! Any thermostat, it's calibrating to cut off at the end of 2nd beginning and cut in 2nd ending of temp.
Ex: In heat mode, If you set @ 68 degree, it will cut off 70 degree beginning and cut in at the end of 66 degree.
Hope it's helpful to you?

Jan 10, 2011 | Intertherm Heating & Cooling

1 Answer

Temperature varies 13 degrees around setpoint on aux heat


I don't have the book for this particular unit but, check the sequencers that control the electric heat mode, as the regulator heat pump works good. The part may have a time or temperature delay that is too long for you. Also if it has a remote thermostat, check the heat anticipate setting. You will have to check the installation manuel, but its usually .6 to .8, but I don't think that is the problem.

Nov 28, 2007 | GE Zoneline AZ55H09D Air Conditioner

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