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Heat pump problems

Inside unit will run all night the outside unit will run for 10 min and stop .it does this all night why

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  • 187 Answers

Some heat pumps have high and low pressure swiches installed to keep compressor from running when unsafe conditions occur that can damage the compressor. If the outside fan is not turing on, the unit is cycling on high pressure, if you see ice forming on the big refrigerant line coming from the air handler, then the compressor is shutting down on low pressure. Low pressure can be cause by lack of air flow through air handler or from a low refrigerant charge.

Posted on Apr 15, 2014

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Posted on Jan 02, 2017

Sea Breeze
  • 4654 Answers

SOURCE: non-working outside unit

If your unit is blowing heat inside and it's not a heat pump. It will be most likely electric heat in your case.
Sounds like you have a split unit meaning the condenser is outside and the cooling and the heat features are inside or under your home.If your Rudd is a heat-pump the outside unit will cycle/blow cold air outside in winter and hot air will cycle/blow outside during the summer season. Now, if for some reason the heat  is not coming on inside the house, would be the only reason that you would need to be concerned. Being a heat relay or breaker of could cause that problem. Hope this helps you, Sea Breeze 

Posted on Oct 28, 2007

hotuna
  • 288 Answers

SOURCE: ruud heat pump outside fan

You may be right in looking at the motor. It uses a different speed on heat than cool. The heat cycle uses low speed, usually red. Some manufactures use blue (medium). Cool uses black, high speed. If you are confident, switch the low speed wire with the high speed and see if this changes anything. If the fan motor isn't the problem, check the other setting (cool) if the overload trips, you may need to look into a new capacitor or compressor, if so, you can install a hard start kit. these are start boosters, and are inexpensice, sometimes they will give another year out of the comp. but I've put them on and they have lasted 5 years.

Posted on Mar 15, 2008

  • 25 Answers

SOURCE: Wiring Amana Heat pump to inside unit and 9520 robertshaw

colors can vary. you should be able to locate a wiring diagram inside the airhandler and out door unit. you will have to remove the panels. generally though Green is fan RED is power WHITE is reversing valve Blue is common YELLOW is the contactor (usually have to jump w and y terminals at robertshaw tstats. PLEASE DOUBLE CHECK AT SYSTEM DIAGRAMS!!

Posted on Nov 22, 2008

roadrunning1
  • 152 Answers

SOURCE: Air con runs for 5 mins then stops, unit outside still going

ok depending on what part of the world your in and the season . Winter: most split systems are designed around a set given temperature of operation , if this is a heating problem the what you are experiencing is the system going into deforest . bare in mind that those carrier splits are manufactured in china and are designed for about 35 deg C in summer and +5 in winter , anything out of this temp range will cause this , especially if it is running on freon 22 , in-which case it sounds like its short of gas to me . if its a new R410 a system , then check your filters and if they are clean and its still doing the same then it too is short , in each case a refrigeration mechanic is required.

Posted on May 11, 2009

haystack11
  • 55 Answers

SOURCE: Rheem heat pump,have to keep pushing red reset button for fan

Either the fan motor is going out OR the compressor may need a boost of power from a quick start.

When the compressor gets old, sometimes it requires a little extra power to get it going.

Your unit should be under work warranty if they installed it.

Posted on Jan 06, 2010

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1 Answer

Thermostat not working


My guess is it has a low pressure cut off switch on it. When it runs with a low refrigerant charge it causes pressure in the refrigerant lines to go low, then the compressor shuts off (thats what the low press switch does to protect the compressor). When the gas warms up it expands and increases the pressure and the low side switch closes and starts the cycle again. Get it charged...problem solved!!

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If compressor stops in middle, check the following.
1.Thermostat setting must be minimum +3 degree than your room temp
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1 Answer

My robertshaw thermostat works well in summer when using my Air conditioner. I have a heat pump. but in the winter the thermostat frequently displays "ER" during cold winter nights when the unit...


what it sounds like happening is the unit is realizing it is falling behind most thermostat s have a 3 degree deadband if they fall 3 degrees or more at a time after running for so long then it will bring on the emergency heat which is located in your inside unit... when it gets really colds and you see this you need to go outside and look is the outside unit still running and is it freezing up on you...also if running check the larger of two pipes make sure the large pipe is hot to touch...based on the description you have given the thermostat is calling for emergency heat but for some reason is not bringing it on or there is a problem with the emergency heat.... hope this helps out some
repost with any additional questions...

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1 Answer

I have a Rheem Heat Pump unit. This winter, the outside unit fan at times trips off, but the inside unit keeps running continuously. I woke up one morning & it was 62 in the house. The inside unit ran...


Dear Friend!

Due to very low ambient temp, the fan will not run. Once the pressure build up, it's automatically run for some time and again cut off. But if you keep Heat mode and still tem not raised in your room means the reversable valve not working and hence the compressor and out side fan also will not work. Keep "Heat" mode and temp setting +29 to get better heat. Hope is it helpful?

Dec 10, 2010 | Heating & Cooling

1 Answer

Rheem heat pump,have to keep pushing red reset button for fan


Either the fan motor is going out OR the compressor may need a boost of power from a quick start.

When the compressor gets old, sometimes it requires a little extra power to get it going.

Your unit should be under work warranty if they installed it.

Jan 06, 2010 | Heating & Cooling

1 Answer

Amana Cooling Condensing Unit fan stops spinning after 15 mins


Capacitor, dirty condencer coil causing the motor amps to run too high. But most likely worn bearing on blade side of motor causing it to pull to one side causing it to over heat and shut down. Sleve bearings should have no side play.

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Goodman PHJK048 Heat Pump Package


ok...where to start.lol ....the thermostat is just a switch.It will tell the unit to run or not run.if you measure the temp with the heatpump running,the air is warmer than 68 but it feels cool to you because your body is 98.6.The unit will run more often and for longer periods when the temperature drops outside for a few reasons.First,your house has more of a load to heat,meaning you have more heat loss because of the difference in temperatures outside and inside.Second,your heat pump pulls heat from the outside air.The colder the air outside,the less btu's for it to pull.If you have anymore questions hillbuck29@aol.com Hope this helps,Dave

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1 Answer

Non-working outside unit


If your unit is blowing heat inside and it's not a heat pump. It will be most likely electric heat in your case.
Sounds like you have a split unit meaning the condenser is outside and the cooling and the heat features are inside or under your home.If your Rudd is a heat-pump the outside unit will cycle/blow cold air outside in winter and hot air will cycle/blow outside during the summer season. Now, if for some reason the heat  is not coming on inside the house, would be the only reason that you would need to be concerned. Being a heat relay or breaker of could cause that problem. Hope this helps you, Sea Breeze 

Oct 27, 2007 | Ruud UBHC Air Conditioner

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