Question about Heating & Cooling

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When my power goes off I cannot get my heat pump restarted. So far this has been in air conditioning mode but the unit is new. The dealer has restarted it several times but I have not been given a good explanation for the problem except that the compressor is running backwards. What can I do?

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Hi,
You need to have them install a delay timer that keeps the power off for a minute or so before restarting the unit...
what happens is the when the power goes off the compressor starts to run backwards.. it will take a minute for it to come to a complete stop...if the power comes on before it has stopped and is still running backwards it will continue to run backwards...
You also can do the same thing by pulling the circuit breaker and waiting a minute and reapplying power...
however the delay is the best fix...

Here is a tip about trouble shooting your air conditioner...

Air Conditioner Trouble -Review the Possibilities
http://www.fixya.com/support/r3571569-air_conditioner_trouble_review_the_possi

heatman101


Posted on Aug 08, 2010

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My 12000btu spliter air condition start and stop in 5 seconds


24
EN
TROUBLESHOOTING
CAUTION
If any of the following conditions occur, stop the air conditioner immediately, turn off the main power switch and contact the
dealer.
• The indicators flash at short intervals (5 Hz). Reset the circuit breaker 2 to 3 minutes after the power main switch is turned
off.
Despite the resetting operation, the indicators still continue turning on and off.
• The main power fuse often blows, or the circuit breaker is often activated.
• Foreign matter or water has fallen inside the air conditioner.
• Any other unusual conditions are observed.
Before asking for servicing or repairs, check the following points.
Recheck
Inoperative
• The power main switch is turned off.
• The circuit breaker is activated to cut off the power supply.
• The main power fuse has blown.
• The electric current has stopped.
• The batteries in the remote controller used up.
• The ON timer is set.
• As a protective mechanism for the air conditioner, it does not operate for 3 minutes
immediately after restarting operation or turning on the main power.
Poor cooling or heating performance
• The air inlet or outlet of the outdoor unit is blocked.
• Doors or windows are opened.
• The air filter is clogged with dust.
• The louver is not at the correct position.
• The fan speed is set to low.
• The air conditioner is set
to the DRY or SLEEP MODE.
• The temperature setting is too high (during cooling operation).
• The temperature setting is too low (during heating operation). (heat pump models)

Feb 01, 2015 | Samsung AS18A6RB Air Conditioner

Tip

KNOWING ABOUT CONDENSER


What is a condenser?
Is a device or unit used to condense vapor into liquid. A condenser is simply one component of an air conditioner. Whether you have an outdoor air conditioner or a window unit air conditioner your air conditioner contains a condenser.
Condensers are used in outdoor air conditioning systems as well as heat pump systems. Condensers in an air conditioning unit have very few controls. They will have an on and off switch. Occasionally these air conditioners will also have a brown out option. This option shuts down the compressor when the electrical current is low.
A condenser is simply a heat exchanger. It compresses refrigerants into a hot gas to then condense them into a liquid. A condenser is a major component in a air conditioning or heat pump unit. It moves air across the coils to facilitate the transfer of heat.
In a heat pump unit the condenser has a few more features. It will have a reverse valve that allows the unit to switch back and forth between air conditioning and heating. Even when the unit is heating, it uses the condenser for defrosting the coils. If the coils become layered with frost it will effect the units effectiveness this is defrosted when the reverse valve switches to air conditioning mode to move the hot gases through the coils melting the built up ice. It will automatically switch back to heating mode once the ice is cleared to once again heat the home.
To keep your unit in good operating condition it is vital to keep the area around the condenser clear of all debris as well as keeping the filter clear of dust and dirt. A clean machine makes a happy machine. A happy machine will keep you cool during the summer months and warm during the cold months. It is suggested to change the units filters when they become dirty, depending on your area and conditions near your home this may be as often as once a month or as seldom as every 3 to 6 months. You will have to pay close attention to your units needs to decide the right time to change or clean your unit’s filters.
It is very important no matter what type of unit you have to prevent the blockage of the condenser. If the condenser becomes block it can effect the units efficiency or even cause the until to completely fail. For this reason it is one of the most important components of a cooling or heating system. A condenser allows the maximum airflow to the unit.
Keeping you condenser in good running condition will not only prolong the life of your heat or cooling system but also provide you with the most efficient heat and cooling system saving you money on heat and cooling.www.victorwod1234.blogspot.com

on Apr 08, 2010 | Heating & Cooling

1 Answer

Hi,My remote do not get the good temp in my house. Ex: I set to 80F in heat mode but the thermopump operate slowly and dosn't get hire than 70-72F. The remote see the unit and all. Is the sensor in th


You have a heat pump.
Once the outdoor temperature falls below 36 degrees, heat pumps will sharply lose their ability to heat.
If you are getting a 72 degree indoor temperature when the outdoor temperature is 28-30 degrees, the heat pump is performing up to spec.
On heat pumps, the air coming out of the nearest air vent to the unit should be heated approximately 40 degrees warmer than the air entering the unit.
If you have a 70 degree indoor air temperature, the heat pump should be supplying 110 degree air at the closest air vent to the indoor unit.
Gas heat is a much better heating source where outside temperatures are commonly below 36 degrees.
Even electric furnaces perform better than heat pumps under these conditions.

Nov 30, 2014 | Heating & Cooling

1 Answer

Heat pump i dont know the model


The "R" terminal on the back of the stat should be 24 volt supply to the stat. For a heat pump, when the stat calls for heat, the "W" terminal goes hot (24 V) and should actuate the reversing valve and start the outside unit for heat. when the stat calls for cooling, The "Y" terminal goes hot and starts the outside unit without the reversing valve. The heat strip is used to temper the air while the outside coil is defrosting when in heating. You need an OHM meter to test for a short in the heat strip. A lot of installers are wiring it to heat all the time when in the heating mode if the heat output is too low on really cold days. Try jumping "R" to "Y" and the outside unit should start. Disconnect the heat strip from power while testing. This is really brief, its a big subject. Good luck.

Dec 13, 2013 | Water Heaters

2 Answers

I have a Mitsubishi heat pump that runs well but the outdoor unit does not defrost what could be the problem.


Why does my heat pump ice up in Winter?
Heat pumps naturally ice-up in the winter. It is normal for the entire coil to be covered in a white frost and even light ice, during cold weather conditions. However, it is bad for the entire unit to be encased in ice. This indicates ductless heat pump problems which should be addressed quickly to save energy and avoid serious damage to your ductless unit. These systems should periodically go into a defrost cycle. This keeps the unit running efficiently. If the coils are blocked by ice, proper heat transfer between the coil and the outside air will not occur.
How does the defrost mode work?
When the mini split heat pump goes into defrost, the reversing valve inside of the outdoor unit is energized, switching the system from heat to the air conditioning mode. The outdoor coil becomes the hot, the indoor coil becomes cold, and both - the outdoor and indoor fans shut off. This allows the outdoor coil to melt accumulated ice. When the built-in micro-computer analyzes that all ice have been melted, the heat pump heating system goes back to heating mode.
sanyo-mini-split-defrost.pngA cloud of water vapor may be seen rising over the outdoor unit and a "whoosh" sound can be heard as the refrigerant reverses direction. The entire process usually takes up to 10 minutes (depending on conditions).
How often does the system goes into defrost mode?
Ductless mini-split heat pumps have different ways of determining when to go into defrost. The built-in microcomputer determines outdoor temperature, refrigerant pressures, and several other factors. In colder temperatures the system will go into defrost more often than in warmer.
If a ductless mini split heat pump is severely iced-up in the winter it is possible that it isn't defrosting (though there could be many other causes). Let the manufacturer certified technician check your system

Oct 29, 2011 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

Hi Had power cut this morning and now the heat pump will not go. Green power light just keeps flashing and orange timer light on.


try turning the power off at the mains ( Isolator switch next to the unit or at the meter box.. Leave off for about 30 minutes as most AC units have a backup memory for when power goes off. Try restarting. If it still goes into a fault code mode ( flashing lights etc) there may have been damage done to the main board due to a power surge.

Jul 14, 2011 | Heating & Cooling

2 Answers

Trying to hook up Honeywell RTH6350 thermostat. When turned on cool out air blows out. We only have a green, red, yellow and white wire from the old unit. Are we missing some wires? we have a heat pump.


Your Thermostat should wire as Red to Rc/Rh (if Rc/Rh are not connected you need to put a jumper between them; White to W; Green to G; and Yellow to Y on your thermostat. These will be the only wire connections that you need to connect from the unit to the thermostat. However, if your thermostat is not battery operated and is programmable then you will have to run on wire form the transformer in the units C to the Bl on your thermostat.

Thank you for choosing FIxYa.com

Justin

Apr 02, 2011 | Heating & Cooling

1 Answer

Installing rv roof airconditioner heat strip


I see what you see also in the manual. The difference is the Heat Strip package that part is optional and the 600212-001 with the optional heat strips becomes the new 600315-001 I talked to Dometic Duo-Therm and the models are the same but they both are not heat pumps but the new heat strip package comes on when told to go into heat mode when you change the thermostat to heat. The part you purchased will fit both model numbers you listed for your roof top air conditioner. Thanks, Sea Breeze

May 09, 2010 | Heating & Cooling

2 Answers

Heat pump gets ice covered when heat is on. Cooling works fine. There is two brown wires coming from the unite in the attic to the outside unite. One of the wires has come loose from the outside unit. I...


Hello,KY the defrost function is not working.The wire goes to frost sensor or the outside unit control.It is LOW voltage wire.Turn the unit off and carefully look for a abandond/bare wire.Maybe a single wire with a wire nut/cap or splice.Reconnect the wire as there should be no EXTRA wires.The unit will make a strange noise when restarted.Good luck.

Apr 23, 2010 | Heating & Cooling

1 Answer

I HAVE AN AMERICAN STANDARD HEAT PUMP/AIR CONDITIONER UNIT OUTSIDE MY MOBILE HOME A FEW DAYS AGO A UNKNOWN SMELL COMES THRU ALL VENTS IN AIR CONDITIONER MODE ONLY. WHEN HEAT IS ON THERE IS NO SMELL UNTIL...


This is a condition called Dirty Socks Syndrome air cleaners and dehumidify usually fix the problem also adding a uv light to the duct can remedy the problem the light is probally the cheapest solution

Dec 04, 2008 | LG LS-K1830CL Cool Mini Split Air...

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