Having problems with your Air Conditioners ?
Fan comes on but unit does not heat or cool the air
You,ll need to open the furnace and observe the led lights on the comtrol board the is a chart attaced to cover. If it is in lock out mode the fan runs. To reset turn off at tstat.the turn the power on at the furnace, set tsat up, observe furnace. First you should hear a small fan then the glow of the ignitor then the opening of the gas valve and flames 10-30 seconds then the big fan.
Repair Help & Product Troubleshooting for Air Conditioners
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I have a comfortmaker unit with heat strips. The blower fan comes in and blows cool air. I have checked voltage at the transformer, and it is producing 24 vac. The contactor for the fan and condenser never pull in so I replaced the defrost control circuit board. Still only blows cool air and the defrost cycle never comes on. I jump 24vac to the coil on contactor and the defrost fan came on and the condenser came on so the fan motor and start/run capacitor are good. Any suggestions.
... Air Conditioners
We installed a Honeywell RTH230B thermostat on a Trane XE60 Air Handeler this winter. When we put the system on heat it works fine. However, when we put the system on auto for cool the compressor fan comes on but not the air handeler fan. On the air handeler the terminal strip from left to right is R W Y G B/C. The red wire on the R terminal comes from the contactor on the compressor unit. The other wire from the compressor unit is connected to a gray wire that goes to the thermostat. The W
I ran into this before and had to call Honeywell for help in the wiring...it seems the wiring was not done to standard, and they were able to help me get it straight in about 10 minutes and at no charge. ... Air Conditioners
After a cooling cycle, when the thermostat call for more cooling, it take up to 5 minutes after the air handler starts for the compressor motor to restart. The top fan operates on the outside unit, but since the house is not circulating cold air, only the room tep air the house heats up about 3 degrees before the compressor comes back on and cool air begins to come from the ducts. Yes. I know there is a safety feature to protect the compressor, but can the cycle be shortened?
No, this cycle cannot be shortened due to the simple fact that this feature is in place to protect your system. Even if it could be, I wouldn't recommend it.Mat ... Coleman Air Conditioners
We live in southwest Florida. Our HVAC system consists of a air conditioning system with heating coils when it is cool. Yesterday morning we tried the heat nothing come on. Later in the day I tried the air nothing. I tried turning in just the fan nothing. I just checked the breaker I have power where the wires are connected. I went out to the outside unit and pulled the cover. Pushed in a spring loaded plastic switch the fan on outside unit works and shut off when I released the switch. But noth
Hello. Sounds like you do have power. That spring loaded plastic switch is a 24v contactor. It pulls in when energized. If you push it in manually everything shoud run normal. Ck your 24v transformer. On one side (feed) you should have 115v or 220v ... Air Conditioners
I have a dometic dual-therm rooftop RV air with analog thermostat. When I set the thermostat to heat, the unit will hum but the fan does not turn and no air is coming thru vents in the floor. Then unit will blow cold air (hums and fan turns) when thermostat is on cool, but it won't turn off unless I shut it off at the breaker. What could be wrong?
... Dometic Rooftop RV Air Conditioner
I have a Goodman air and heating unit model#gsc130601bc and the problem is the unit comes on but the fan does not, also the unit gets hot and no cool air is coming out of vents in the house. What can I do to fix it?
... Air Conditioners
I have a Frigidaire cooling and heating unit. Last night we had freezing rain and ice. I heard a weird noise coming from the unit then smelled a burning smell. I turned the unit off. The top vent outside was covered in ice blocking air flow. I cleaned off the ice and turned the unit back on and it just makes a humming noise. No air is blowing and I looked inside and the fan is not turning.
Sounds like the motor burned up when the ice blocked the air which it was not able to cool the motor it will need to be replaced. (the motor) ... Air Conditioners
My Fujitsu Converter Air conditioner is not working... The Green light is flashing 13 times - the red light flashes continuously very quickly. The fan does not commence at all and therefore no heat or cool air comes from the conditioner at present. Also, once I press the start button on the remote control unit and the light being to flash, I am then unable to stop the unit - even after pushing the start/stop button - the lights continue to flash. Is there something I can do to make the air c
... Fujitsu Air Conditioners
I have a suburban lp furnace and duotherm air/heat pump roof unit. duothern thermostat. 20 amp breaker kicked ( reset breaker) & furnace quit. NOW furnace fan comes on but does not light, and the front AC will not work either, when in the COOL position on STAT the unit blows warm air instead of cold. I replaced the Thermostat and a Tech guy checked the board in the furnace and it was OK. He also switched the board from the rear air with the front and nothing changed. Rear air and heat pump works
I'm not sure what the problem may be but you could try calling All\015\012Seasons RV Appliance Parts & Service. There number is\015\0121-800-344-0673 they have helped me in the past. That and there tech\015\012calls are free so it wouldn't hurt ... Dometic Rooftop RV Air Conditioner
I HAVE A 2000 HOLIDAY RAMBLER WITH TWO AIR CONDITIONERS. THE REAR A/C WILL NOT COME ON UNDER ANY MODE (FAN ONLY,HEAT PUMP OR COOL)WHILE IN ZONE 2.WE HAVE BEEN ON 50 AMP SERVICE AND IT STILL DOEN'T WANT TO TURN ON.ZONE 1 (FWD A/C UNIT )WORKS FINE IN ALL MODES.115 VOLT A/C IS AVAILABLE VERIFIED AT THE UNIT CONTROL UNIT.3 AMP FUSE IS OK.ANY IDEAS ON WHAT IS WRONG? PS THE FAN ON THE AFT UNIT TURNS FREELY. STERLING SNOW
Have you tried running both, when plugged in, as well as generator running? What about testing voltages etc at terminals on control boxes, has anyone done that? Just in case this unit is new to you, are you sure there is no extra switch that has to b ... Dometic Rooftop RV Air Conditioner
Hi Expert, my reverse cycle aircon is Samsung model name=AQY09NSBN, only fan is working on the outside and inside unit at the moment, no heat air or cool air coming out of the inside unit, even tried with different temperature setting. Everything was fine till my gutter downspout was blocked and the switchbox outside near the unit was flooded and the aircon was on and off by itself every three seconds, so I turned the aircon off from the main switch outside. I got an electrician to replace the
Hi, and no your warranty is not void due to a flooded disconnect box, this is a lie!! If both fans are running, and you have no heat or cooling, the compressor is not running. This is a heat-pump with a reversing valve. The indoor unit has a control ... Air Conditioners
This is a heating and cooling through the wall heat pump. It works normally when heating is selected - the heat pump runs and both speeds of the fan blow warm air. But nothing runs when cooling is selected. In other words the unit works normally when "High Heat" or "Low Heat" is selected but nothing runs when "High Cool", "Low Cool" or "Fan Only" is selected. The position of the Fan Cycle Switch has no effect - behavior of the unit is the same in both positions of the Fan Cycle Switch.
You have a bad board or bad switch. I would say board. You can have service tech check this out. There is only so far you can go without knowledge of Controls ad electricity. Russ ... Air Conditioners
Hi, I have a samsung aqv18ja series split type air conditioner (cooling and heating) wall unit. the unit was install in 02/12/2009. By "one hour heating and air conditioning". In this short time service the outside compressor has been replace, the system has check and recheck,for cooling leak. the inside unit fan motor has been change. but the problem still exists. The inside unit fan continues to run when the unit is "off" and with the remote off.
Simple, check in your remote. There is an option button "Blow". Just press it. Your unit gets completely off. Please write back if helpful? ... Samsung Air Conditioners
My unit is running but not blowing cool air. I went outside and the condenor fan was not moving. Took a stick and shoved a blade and the fan started moving but the air is still not cool inside. I did notice the air coming through the unit outside after fan was blowing was cooler than my 2nd a/c unit that was working fine. I wondered if the entire unit was frozen. I turned off unit at thermostat and figured I would see what happens tomorrow
Sometimes on new units it is common for the fan to not start until you give it a push. Did you happen to hear if the compressor was operating? If the unit was froze-up the Insulated Suction line would also be iced over as well. If it wasn`t it is mor ... Carrier 38CKC024 Air Conditioner
Had a ac tech service central heating unit for the fall. Tech left and I left to do some errands . Now AC unit is not cooling its blowing warm air. I turned the circuit brks off and on inside and outside. I have also checked to see if unit was left on heater. thats not the problem. If I turn theAC on the fan does not turn on outside and there is no sound coming from the unit outside HELP!!! AC was working properly before this.
It may not help but it sounds like the tech took a control wire for the cooling circuit loose at the indoor air handler/furnace so that he could bring the heat on to check it, and forgot to hook it back up. That may not be the case, but if it is it w ... Air Conditioners
Lg Neo plasma inverter split model s18ahn isn't heating or cooling properly. When in heating mode air con will go into defrost/preheat mode for 5 minutes and then air con will blow out air for 5 seconds and then go back into defrost/preheat mode. When in cooling mode indoor fan will pump out air but will not get cold. In both heating and cooling modes the outdoor unit will not start up and the outdoor fan will not spin. I have just replaced the main pcb board and that hasnt made a difference. Bo
... Air Conditioners
My ac unit doesn't blow cool air. The fan works on both high and low and heat and cool. However, the compressor doesn't come on. I can hear the relay click when I move the tstat up or down. Please help...
... Dometic 57915531 Air Conditioner
Heat pump trouble shooting fema trailor i have a az75h18dacm1 self contained air cooled heat pump that wont work. cant find any info on this unit. have replaced the stat,the fan comes on only if it want's to
Normally the Fan only comes on when it is called for by the compressor, here is their web page that you can go to and pick your model and get their trouble shooting guide to repair your system, they also have a 800 phone number to help you. I am fami ... Air Conditioners
Pace Air 24HPEW-HEC Unit will not heat, though heat mode comes on, dehumidify and cool mode work, and fan works as advertised. Fault Code E4 presents at startup. Manual is off site. What is this code telling me?
If unit displays "e4"1? Check whether the winding resistance andoperation current of the compressor are normal.2?Check whether the high and low pressure is normalwhen the unit is running.3?Check (whether the ... Pace 12ACXWHEC Split System Air Conditioner
Friedrich YM18 230 volt heat pump. The unit has heated and cooled well for about 5 years. Just started heating mode recently and the unit no longer heats. Fan runs OK. Was able to get the heat strip to run for a few minutes (smelled the dust accumulated over the summer burning off). Now, no heating whatsoever. When in the "Money Saver" mode, nothing happens. Fan will not come on and unit will not heat. With "Money Saver" mode off, the fan runs.
... Friedrich Air Conditioners
Have an amana central air duelfuel heat system.when aux heat[gas] heats the house and shuts off the fans still blow for 3 to 5 minutes with the last couple of minutes being cold air which cools the air it just heated. also heatpump will start heating when it comes on then after 3 or 4 minutes it starts blowing cold air like when the air conditioner is running.i have had problems from day of install 4 mounths ago with problems that keep coming up. please i need help fast i do not think comp
Change your heating delay to shut off sooner, you can find this in the installation manual. Also the Thermostat may have delay after heat as well. It is true there could be many variables, but it also sounds like the Heatpump is not charged properl ... Amana Air Conditioners
My wife turned off our A/C units acouple of weeks ago while we were away on vacation. Not they are both acting up. The fan is turning and moving air through the exchangers outside, the little red pressure switches are not tripped and the fans are moving air through the ducts inside as well. However, the air is not coming out cool enough to drop the house temp from either of the units. I tried the thermostat reset buttons, checked my filters, (they're clear) and my cooling coils are not iced over
Looks like the compressor is no getting ON.Check thermostat . Bye pass the thermostat and try. Check compressor relay. Compressor capacitor. If thecompressor running and there is no cooling, check the current consumption ... Air Conditioners
I have a Mitsubishi MS-09D wall mounted air conditioner. The cooling function does not seem to be cooling. The fan is running but the it seems to be recirculating the air only. The defrost light is red on the wall unit. I don't recall this light ever being on before. Could a button or combination of buttons on the remote unit have been bumped somehow? Could you please tell me how to reset the remote control or wall unit to have the cooling operation to come on again? The air ducts are clean,
... Mitsubishi Air Conditioners
Have a Grand Aire Central Air and Heating unit a/heat pump...has been working fine. Switched it over to heat and nothing came on. Switched it back over to air, which was working and still nothing came on. Switched fan from ''auto'' to ''on'' and the fan will not come on. Used a screwdriver to push the contact in and everything runs (air and heat) as long as I am holding the contact in. Changed the t-stat, still the same problem. I really don't have the finances to call a pro in, any advice will
The fuse may be in line (red ) wire check control voltage if not present transformer (or fuse) needs replaced \015\012 the problem probably was caused by white wire (heat control voltage) has been wired to common not heat control ... Air Conditioners
Amana PTAC Unit is not producing heat. Fan works fine. can not locate manual reset for heat although a label on the unit says there is one. I have an Amana pth153b35ae ptac unit that the heat will not come on. The compressor will run in the cooling mode but not in heat mode. I verified the switching valve is working and the capacitor seems to be fine as the compressor will run in cooling mode. The thermostats seem to be functional because relays can be heard clearly when changing temperature se
I know this is late but I had to add a solution to this problem since I had the exact same problem and was able to solve it. The probelm is not your control board. On these units, the heat pump compressor will not kick in unless the temperature you ... Amana PTH123B25AJ Heat Pump Air Conditioner