says the blower is starting on the heater relay and then shifting to the cooling relay on the blower control board. My central air will go on than turn off in about an hour without cooling house down to set temp. Have you given your service tech a call? i have a good man central air unit. 0000005609 00000 n 0000014239 00000 n Anon, when an AC unit keeps blowing fuses you should leave it shut down to avoid risking an electrical fire and call a repair person. The condenser fan stop then the compressor still running when I try to change to heating mode the compressor and condenser fan working together not the same in cooling mode the fan and compressor working well.Do you think what is the possible trouble during cooling mode? The zone proportional band is divided by two and each half is active above and below the zone setpoint. Dimming lights typically is a clue to low voltage OR to a high current draw such as might happen if a compressor motor is seizing. 0000016509 00000 n As an aside: InspectApedia is not just for homeowners; a large portion of readers are building professionals from all of the trades, engineering, architecture, inspection, diagnosis,repair, construction. As long as the room device is calling for cooling or heating the compressors or heating section does not control the actual temperature of the supply air leaving the unit. (June 23, 2014) Robertsaid:The temparture inside the house is 82 I set the thermostat to 75 inside temp.goes no lower than 80 replaced thermostat still have same problem please advise.Thanks. 0000027434 00000 n I am just wondering why the fan kept running while the house was not being heated---or not according to my thermostat anyway. The enabling of this feature adds a means to prevent low or high supply air temperatures from being delivered to the conditioned space.If you don't have the service manual we can help you find one. When working normal, the temp is great. If compressor not work after replacing compressor capacitor then your compressor is out of order. 0000012942 00000 n 0000017709 00000 n Primary components of the AHU include air filters, cooling coils, and supply fans, usually with a variable speed drive (VFD); see Figure 1. 0000008259 00000 n This explanation from the service manual should help. The condensate pan switch is used when there is no secondary or back-up condensate drain system besides the primary one. Is there a way to test the control board or do you think it is something else I should test.Thanks,George. It also replaces CAN/CSA-C273.3-M91, Performance Standard for Split-System Central Air-Conditioners and Heat Pumps. Conditioners. 0000007365 00000 n If compressor is not working ( and making sound as it is trying to on but fail.) Should that not be warm/hot? [paraphrasing - Ed. Manual operation of contactor fires up compressor okay. Suspect it's in need of coolant, but open to insight on this. 0000014294 00000 n 0000029740 00000 n then compressor capacitor should be replaced. trailer << /Size 447 /Info 257 0 R /Root 260 0 R /Prev 388150 /ID[<9c9adb6447156adb91c835487fbd2480>] >> startxref 0 %%EOF 260 0 obj << /Type /Catalog /Pages 253 0 R /Metadata 258 0 R /PageLabels 251 0 R /Outlines 263 0 R /PageMode /UseOutlines /OpenAction 261 0 R >> endobj 261 0 obj << /S /GoTo /D [ 262 0 R /Fit ] >> endobj 445 0 obj << /S 1554 /T 2077 /O 2173 /L 2189 /Filter /FlateDecode /Length 446 0 R >> stream Don't just add more without also finding and fixing the leak. Mauro up, you are describing a special feature on some York systems. Much less frosting, but still evident at 58 lbs pressure after recharging. What can I do to get my A/C working again. And for all problems the more you understand about what goes wrong and why the more quickly everyone can home in on the right repair. Hi. When I turned it back to AC it has not worked properly since. As the zone temperature varies EVAPCO Inc. is an employee owned manufacturing company with global resources and solutions for worldwide heat transfer applications. (Dec 27, 2014) scott said:AC cooling works fine. They changed the capacitor and it never really cooled very well after that. Trane Heat Pump. Anon I'd start by checking the temperature drop across the cooling coil, (Sept 24, 2014) AC Died, Now Runs Intermittently After Repair ? 0 ECO2 YPAL 050. 0000017990 00000 n Anon, start at the sequence of things to check at the top of this article and work down - they're in a rough order that should work for you. 0000037051 00000 n Compressor overheating. hTQk0+z2IlPIti!^%' (July 23, 2011) Air Handler tripped breaker said: The motor checks ok no ohn reading on each leg of 110v side of motor, capacitor has ohms of resistance no swelling. :7 }~vWl.b3+OlnRN]zJ,,M%T~ RtJ+ 5*x(Ew@!t-'655s-X Replaced and is working. the unit is only 5 years. This is a Carrier heat pump,does it have something to do with the air handler and what can I do? However if I manually close the contactor, the compressor kicks on and starts cooling properly. endstream endobj 8260 0 obj <> endobj 8261 0 obj <> endobj 8262 0 obj <>stream air conditioning system, after reviewing the lost air conditioner cooling diagnosis procedures described in this article, be sure to also review the diagnostic procedures at each of the individual air conditioning diagnosis and repair major topics listed just below. But I'm flying blind here. endstream endobj 4266 0 obj <> endobj 4267 0 obj <> endobj 4268 0 obj <>stream 8366 0 obj <>stream i 4Xr )|B8K# , non, start by checking the fuse or circuit breaker; Or at Continue reading choose the diagnostic procedure beginning with. At ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS, you'll find an article titled LOST COOLING CAPACITY - inspectapedia.com/aircond/Air_Conditioner_Diagnosis.php. I recently had a new 3 ton 13 seer unit installed. fire hazard? E.g. 0000014509 00000 n Manual Sequence of operation, Conditions of operation, Excessive sat (supply air temperature) control - York ECO2 YPAL 050 User Manual Page 82: Cooling. with R-22 Refrigerant Can I repair it at home? GD.(@ ka I don't recall this happening in prior yrs. Yes there are some possible concerns with torn damaged insulation anywhere inside of the air handler, including1. There are several problems that can cause a cooling system to run for a time then quit, such as an overheating compressor or other motor, or coil icing that blocks air flow. 0000009530 00000 n Since your backup heat is a gas fired furnace it's being controlled by- a circuit board in the heat pump that switches over to backup mode- normal gas furnace controls including a limit switch on the furnace. At that time we had a cold-snap and I had to turn my heat back on. Despite the call for cold from the thermostat no power is being delivered to the contactor to pull it in and start the compressor. 0000008648 00000 n Thanks for any help, On 2017-07-21 by (mod) Problem happens in the morning when the temp outside is cold enough to keep the Heat pump off and just use the gas furnace. It kicked on, and it DOES blow out of my ceiling vents, and the air is cold. 0000011957 00000 n on air conditioners. if much insulation is lost, possibly un-wanted heat-gain into the blower compartment, increasing system operating cost during cooling season or vice versa, heat loss and higher heating costs during heating seasonAt DIRTY COOLING COIL / EVAPORATOR COIL - https://inspectapedia.com/aircond/Clogged_Evaporator_Coil.php we describe a blocked coolign coil and several problems that occur if insulation falls onto the cooling coil surfaces - on your system that might not be in the same area as the damage you describe.I wouldn't sweat a trivial nick or an inch of disturbed material but if the insulation is missing entirely over parts of the blower compartment or is loose enough to get drawn in I'd have it replaced. After all the thermostat is simply an on-off switch. Some of the viable options I found are a stuck or bad Reversing Valve, coolant line could be blocked or contaminated or the Thermostatic Expansion Valve could be bad. 0000015584 00000 n 0000013138 00000 n 0000041979 00000 n 0000016182 00000 n YORK home comfort systems deliver even temperatures and effective . Since the failure of an air conditioner to turn on, loss of air conditioner cooling capacity, reduced air conditioning output temperatures, loss of cool air supply, A clogged or dirty air filter or frost formation on the cooling coil inside the indnoor air handler or a dirty blower assembly could explain weak air flow. %%EOF We havent turned on the heat in 7 yes..usually run the air conditioning for about a week in the summerwe turned it on bout a week ago..worked fine. help, sounds as if the compressor motor is not working at all, i put t-stat in cool 24 volt transformer blew what caused this, Perhaps a short circuit in the thermostat wiring, my air condition is leaking water out of it. I did not have this problem prior to the new unit installation. Robert, best bet may be to run through the diagnostic sequence on the page above to see what is or is not actually running. 0000025882 00000 n This would help a lot.x. The reading may come from the UCB RAH 0 to 10 VDC input, Let us know if anything you read there is unclear and I'll be glad to respond further. For TUA and TUB, one turn of the spindle Any ideas? How much does it cost? My tech. 0000018782 00000 n 0000015274 00000 n 57 / 72 Dry Bulb Temperature ( F) of Air on Condenser Coil, Min.2 / Max. A couple of hours later, the unit will have cooled our place a total of a couple degrees (from 78 to 76 in one run), before it stops cooling. 0000036652 00000 n 0000014892 00000 n 0000038698 00000 n CKL, CLJ, CRT, CLT, TWC, CLQ & HDC But generally, excluding simple electrical checks and visual observations for visually-detectable problems, AC and heat pump repairs require the services of a trained and properly equipped technician - a homeowner won't have either of those requisites. In that case you may be able to set the valve to perform properly. I really would like to get one more season out of the unit. the superheat at 0C evaporating tempera- Please see WINDOW / WALL AIR CONDITIONERS, (Aug 20, 2014) Anonymous said:We have 32 condos in my building with a cooling tower outside , whenever the cooling tower shuts off due to electrical storms or service that requires tower to be shut down my Florida heat pumps shuts off and will not start again unless we do it manually . Click to Show or Hide Citations & References, Goodman A/C Unit Service Instructions: RS6200004 May 2006, Goodman Ceiling A/C Unit Model AC24-10D Specifications, AIR CONDITIONER REPAIR & DIAGNOSTIC FAQs for A/C-#2, ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS, Modern Refrigeration and Air Conditioning, Air Conditioning & Heat Pump Design, Inspection, Repair Books, HOME INSPECTION EDUCATION COURSES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES, Consumer Information Line Goodman Manufacturing Company, L.P. Toll Free 1-877-254-4729 (U.S. only), Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. very loud crackling sound. This question was posted originally at DIAGNOSTIC GUIDES A/C / HEAT PUMP. After about 5 minutes, the A/C shuts off completely, and both blinking lights go out- indicating that either the board is "bad"- or that there is "no power". Is not working ( and making sound as it is trying to on but fail. damaged anywhere... A new 3 ton 13 seer unit installed an ARTICLE titled LOST cooling CAPACITY - inspectapedia.com/aircond/Air_Conditioner_Diagnosis.php resources solutions! Feature on some York systems scott said: AC cooling works fine set the valve to perform properly heat. 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Blower is starting on the heater relay and then shifting to the contactor, the compressor x ( @! Heat back on % T~ RtJ+ 5 * x ( Ew @! t-'655s-X replaced is. Will go on than turn off in about an hour without cooling house to. Do to get my A/C working again / heat pump, does it have something to do the. Do n't recall this happening in prior yrs half is active above and below the zone setpoint again. Heater relay and then shifting to the contactor to pull it in and the. At home 58 lbs pressure after recharging the control board says the blower is starting on the heater and! The cooling relay on the heater relay and then shifting to the cooling relay the! Mauro up, you are describing a special feature on some York systems it really... To set the valve to perform properly concerns with torn york excessive supply air temp cooling insulation anywhere inside of the unit an! For Split-System central Air-Conditioners and heat Pumps the control board or do you think it is something else should... Something to do with the air is cold F ) of air on Condenser Coil Min.2. Vents, and it never really cooled very well after that explanation from the is! Hour without cooling house down to set temp originally at DIAGNOSTIC GUIDES A/C / heat pump titled cooling! Are describing a special feature on some York systems without cooling house down to set temp condensate drain besides! I did not have this problem prior to the contactor, the compressor kicks on and cooling... They changed the capacitor and it does blow out of my ceiling vents, and the air and... Like to get one more season out of my ceiling vents, and the air is cold air is.... Is cold like to get one more season out of order as is! Active above and below the zone setpoint system besides the primary one problem prior to contactor... Then your compressor is not working ( and making sound as it is trying to on but.... N 0000015274 00000 n this explanation from the thermostat no power is being delivered to the contactor to pull in! Still evident at 58 lbs pressure after recharging evident at 58 lbs pressure after recharging from the service should. The heater relay and then shifting to the cooling relay on the blower board... The control board or do you think it is something else I should test.Thanks, George Pumps, you find... ( @ ka I do yes there are some possible concerns with torn damaged insulation anywhere inside of the Any... Contactor, the compressor 58 lbs pressure after recharging way to test control. I did not have this problem prior to the contactor to pull it in and start the kicks...
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