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Tempstar smartcomfort 2200 compressor not coming on

Fan running outside, no compressor startup, no cold or moist copper line, inside unit runs but no cooling

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  • Contributor
  • 23 Answers

Probably out of gas. May have a leak.Call the aircon guys.

Posted on Apr 20, 2013

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Posted on Jan 02, 2017

  • 10865 Answers

SOURCE: Inside fan running outside not

There is an electrical box on the wall near the outdoor unit. open it and be sure that the circuit breaker is in the on position. Same in your electrical panel, be sure that the circuit breaker is turned on.

Posted on Aug 16, 2009

  • 4 Answers

SOURCE: Blowing hot air, compressor not kicking on, just fan ? ?

are you speaking of the outside fan or inside? compressor should be a little warm but not boiling hot. the unit could be low on freon. if low it will run a while but the compressor will overheat and shut off leaving the fan running by itself ouside. if nothing outside is running check power. if you have power check the contacted outside to make sure it's pulled in. contacters are bad about going out on goodman untis. Also ants can get under contacts.

Posted on Jun 18, 2009

mastatech
  • 478 Answers

SOURCE: Amana 1 ton Residential AC / Outside unit comes on for a sec

open the service panel to check for control voltage of 24volts when tstat calling, The contactor should be pulled in, if contactor is down,and contacts appear to be clean, and the unit is still not running, it is a bad compressor. to test this unplug the black wire from the compressoror at contactor,w/ power off! Turn on power if fan works normally it's a bad compressor. However if you see a swollen split cap(5 wires to a soup can looking w/ the terminal C,F,and Comp), switch it first and start at square one.
You also need to consider the high pressure switch if its cycling on off on off.

Posted on Mar 12, 2009

joshuaramsey
  • 6 Answers

SOURCE: uotside unit blowing cool air but hot on the inside

It sounds like you have a unit called a heat pump. When a heat pump unit is in cooling mode the outside unit blows hot air and the inside unit blows cold air. If the outside unit is blowing cold then the indoor unit is most likely blowing room temperature or warm air. It sounds like the thermostat could be controlling incorrectly or you could have a failed reversing valve which is the device that switches the unit from heating to cooling mode.

Posted on Jun 02, 2009

  • 59 Answers

SOURCE: Outside Unit Air Conditioner fan not running

probably a bad fan motor. could be a capacitor

Posted on Apr 25, 2009

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I have an Amana heater/airconditioner (Prestige I think) that is not cooling. The outside compressor fan was not spinning, so i I changed the capacitor on the unit. It now spins, yet vent air not cold


If that fan stopped your compressor overheated, shut off on thermal overload. Carefully cool compressor with water hose and restart. If the big copper is cold ,small copper warm, compressor is running. Check capacitor on compressor

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is the outside compressor running or just the condensor fan.

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Tempstar Air Conditioner wont come on


Sounds like you need a new contactor in the condenser. The low voltage is grounded. Remove the low voltage (likely 2 wires) at the condenser and wire nut the wires leading inside. With an insulated screwdriver manually push in the contactor and be sure both compressor and fan run. Then replace fuse and turn power on to air handler with a call for cooling. Obviously the outdoor unit won't run because you unhooked the low voltage but if fuse doesn't trip then it's likely the contactor. Good Luck

Apr 10, 2017 | Heating & Cooling

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My unit stopped blowing cold and started blowing hot.i turned off unit looked into furnace and saw pilot was still lit.i put out gas pilot and turned unit back on and it is blowing semi cool air (like...


100 degree temps/high humidity puts an extreme load on air conditioners - but if everything is right with the AC - 'overheating is not a big problem.

The first thing I would check is whether or not the compressor is running. Customers will typically say the 'outside unit' is running - when in actuality it's a good bet that your compressor, which is the 'heart' of the system and located in the the condensing unit/outiside unit - 'is not' running.

To check and see if it is or not is a simple process.

However, you need to understand that there are two distinct noises comng from the outside unit. First is the "fan motor" and the noise it makes which is mostly the sound of the air blowing; Second is the compressor - which makes a low rumbling/vibrating sort of noise and is easily picked up by someone who works on AC's everyday.

However, this noise (of the compressor) is easily swallowed up by the fan motor's 'air' noise, which results in the average customer thinking the outside unit is running when in actuality (as I've mentioned above) - only - the fan motor is running.

The easiest way to tell if the compressor is running is to 'listen real carefully' when you turn the unit on (have someone turn it on with the inside thermostat while you are at the unit itself) - and pay attention for the 'low rumbling/vibrating sound' of the compressor when it comes on - most always - at the exact same time the fan motor comes on. In your case - I don't believe the compressor is running - which is the reason why the air is not cool/cold.

'IF" - however, you are unable to determine if the compressor is running by hearing it - you can always "feel the refrigerant lines." There are two lines (copper) coming from your outside unit. The 'bigger one' is called the 'suction line' and is usually wrapped in - insulation, usually black in color and may have 'tie strips' holding it on the line. This 'insulation' is on there because this line gets "cold" and condensates (in the warm/hot outside air) like a 'cold bottle of beer' after you take it out of the refrigerator. When the AC is operating correctly you will be able to grasp this "bare" (pull back/cut off the insulation) copper line with your hand - and feel the 'coldness' - "if" the unit is operating correctly. (When first starting give it a minute or two to begin to get cool/cold.) The 'other line' is called the 'liquid line' and typically will feel warm/very warm - when the AC is operating correctly.

So.. by feeling of these two lines (when the AC is running) you can 'usually' tell - whether or not the compressor is running or not.

Note: there is a condition that will 'fool' you once in awhile - and that is if the unit is 'out/very low on refrigerant.' In this case the 'noise' of the compressor will be very, very low and the refrigerant lines will be neither cold or warm. In any event - you can always 'feel' the compressor running/vibrating by laying your hand on the compressor (Caution: it can be very hot), or by stickina long screwdriver against the compressor like a stethascope and feeling it (feel for the vibration of the compressor running) to see if it's running. Also - 'if the compressor is running' when you check it - I would bet it's out of refrigerant and will need a Service Tech to find the leak and recharge the unit.

Anyway... by using the above tips you should be able to determine whether or not your compressor is running - and as I've said - I don't think it is.

So - if you are able to determine that the compressor "is not" running - then the next question is 'why not?'

Reason 1 - there is something mechanically/electrically wrong with the compressor that will take a Service Tech to diagnose, i.e. low on gas, bad valves, etc. etc.

Reason 2 - there is an condition(s) causing it to not run that 'you' might be able to correct.

a) the outside unit (coil) could be very dirty. If it is - take a water hose (Cautiion; be sure all electrical is turned off - including inside thermostat) and clean/wash the coil. Understand the condenser coil on an air conditioner is similar to a radiator on a car and must clean so that air can easily flow over it. Partially disassemble the unit if need be - to make sure "both" sides of the coil is clean.

b) a 'wire' to the compressor has burnt into. I don't know how 'mechanically inclined' you are but if you find a wire burnt off one of the connections (there are typically three connections) you can 'repair' it, i.e. replace the 'spade' on the end of the wire and put it back on the connection it burnt off - fairly easily. Note: this possiblility (wire burnt off compressor terminal) while possible is not very likely - but something I would check. The compressor typically has a little plastic cuplike cover held on by a metal clip. Just pop the clip off and remove the cover and look in there to see if a wire has burnt off one of the terminals. REMEMBER to have all the electrical off.

c) there is wire - burnt into - somewhere in the unit that is causing the compressor to not run. Here, all you can do is 'visually' look for a obvious burnt wire. Sometimes (but rarely), a wire might burn off the contactor. If this is the problem - you should be able to spot it visually and then with a little work repair the wire.

Hope this helps but bear in mind - the chances are real good that you will need the help of a Service Tech to figure out and correct your problem.

Good Luck!





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2 Answers

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If the humming is your compressor running (feel the large copper line going into the unit, it should feel cold aftter a few minutes of run time) then the fan motor or the capacitor or both need to be replaced, check for voltage to the fan motor when the unit is "humming" if it has voltage and will not start replace the fan motor and the capacitor. hope this helps.

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1 Answer

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if outside fan is running and compressor is not you might have a defective compressor or off on safety do to dirty coil. on copper line there should be a reset button or you have to turn unit off and back on. if compressor comes on make sure to hose down coil with spray nozzle in shower position until water comes out clear. If fan and compressor are not coming on call a qualified tech. You could have bad fuses or contactor. changing those parts out can be very dangerous do to high voltage.

Jan 23, 2010 | LG Heating & Cooling

1 Answer

Ac fan on, blowing air, but not cold


Check outside unit if unit and compressor are running feel the large line to see if it is cold. If compressor is running and line is not cold possible charge problems. You may have a capacitor problem outside. they go out quite often. You can change this yourself, Open up outside unit and the cap is the silver bullet with terminals out the top. Bad cap can cause compressor to not operate and also the fan. You need to clean the coil inside or at leat check the coil to see if it is clean. You can clean theis with a toilet brush do not go against the coil bit brush with the fins. You may need to call a service tech but try these options first. russ

Aug 15, 2009 | Heating & Cooling

1 Answer

Tempstar combo unit PGAD....... 6 years old. Both blower fan and condensor fan are running but no cold air?


you have two copper lines running to outside unit larger one should be cold small one should be at body temp or slightly warm. Is the compressor running?

Jul 26, 2009 | Heating & Cooling

2 Answers

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I am not exactly sure as to the type of unit you have. If it is a ductless split system (inside unit on the wall, never seen Lennox make one) you could be low on charge, the metering device to drop the refrigerant pressure is in the outdoor unit. If this is a whole house system, you may have a restriction in the outdoor section somewhere. If you look into the unit while it is running, try to find a filterdrier. It is a cylinder soldered into the small line. You can also see exactly where the ice starts, that is where your restriction is. Let me know what you find out.
seth

Jun 26, 2009 | Heating & Cooling

1 Answer

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Hello from KOOLBREEZES, this is a simle problem and easy to fix. You have 2-lines going to / from your outside unit. a SMALL COPPER -line and a LARGE COPPER line with insulations. The fat line is suppose to have moisture on it wheres it,s not insulated which tells you you have enough refrigerant gas comming back to he compressor but if its dry you,re low on freon and need a charge or the outside condenser is dirty and not getting rid of enough heat!

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