The First initial call was a bad ventor motor. I always recommend “D” so the economizer only functions below 63 degrees 50% humidity. Plz tell me . Indoor fan runs. On the component map you should find a control marked FOVR (FAN OVERLOAD RELAY) of BOR (Blower overload relay). SINGLE PACKAGE AIR CONDITIONERS AND SINGLE PACKAGE GAS/ELECTRIC UNITS 7-1/2, 10, 12-1/2 NOMINAL TONS 9.0 - 10.0 EER 380/415-3-50. All units have two compressors with independent refrigeration circuits to provide 2 stages of cooling. I’m sorry for my English. FC 10 – When flashing, it indicates the compressors are locked out because the low ambient switch is closed. Also for: Predator dm150, Predator dm090. We woke up through the night and the heater is not working. Then you can use the chart in the post to diagnose the problem. When I checked the furnace I was getting a amber 1 flash light. They said they had reset it by the disconnect. you should then have 24 volts at C1 & C2 pins on the board with the plug off. Could you tell us if there is something we can do to reset or do we need a technician? The manual gas supply shutoff valve must be in the open position, and the control switch on the gas valve must be on. If the pressure does not meet the switch setting, then you have a drain, venter,tubing issue. Check if the circuit breaker has tripped and reset it. Is there an economizer in the unit? Thanks, which is the factory default on units that ship without economizers. C. Unit does not respond property to remote control command. Nearly every manufacturer has different flash codes. The unit was working when I arrived Friday afternoon. Hopefully this will help guide you to understanding what each code means and assist you in making proper diagnostics. More info.. Unit Runs with T stat removed from base. Every thing is ok. When the compressor is off in this mode, the control displays a FC2, indicating an active anti-short cycle timer. Check if the motor is itself burnt out and replace. 1. Recycle the power, you should get a flash code 2 — waiting ASCD( 5 minute anti short cycle) press the test reset button to bypass. Then turn on the power and see if the unit starts. setpoint is at 10% min damper position and D the loweset temp setting to turn Econ on. Then turn on the power and see if the unit … What is the model and serial number of the unit — this will determine the controls in the unit and then I can give yoou better information. The serial is n1c185692 yes I have they said they will get back to me . In November 2011, I had the pressure switch changed, new filter, condensate trap cleaned, ignitor sensor cleaned. York® How to determine the date of production/manufacture or age of York® HVAC Systems. Change ), You are commenting using your Facebook account. I ended up with a green steady 1 flash light, which I understand means that the furnace and thermostat are trying to communicate. what lights are lit on the board? You can check all the interpretations of each error code at the back of your specific model’s manual. Replaced that. There is access to internal resources. The units were designed for light commercial and commercial applications. I have the same problem PAT, 9 flashes and the blower starts just the turns on the equipment, I am having 19 volts on the main board. Next to the light is a NUMBER. The board goes through a Bacnet MSTP translator and is mapped into a Metasys front end. If problem is just with Y1 call — look at the economizer. Check if you’re having a bad capacitor (the capacitor supplies power to the fan motor and it could have malfunctioned). Check if the power cord is in good condition and supplying power (replace if not). Flashing Code 11. Is the transformer tap set to the correct incoming voltage (208 or 230)? Thanks for the fast response!!!! did you by pass the econ like I suggested? Verify your temperature rise. Single stage stat will cause problems every time. Test if the fan motor has power. Within the manufacturers, the flash codes can be different from one furnace to the next. The unit is not defrosting. Change ). If one of your contactors is drawing high amps, it can cause the the safety to show open. Packaged Gas/Electric. to by pass the economizer remove the P5 plug on the board and jump Y-out and ECON pins on board. You say the thermostat was just replaced? You do a service to our trade, when I retire I want to do the same. These units can be equipped with factory or field installed electric heaters for heating applications. Whether you're using the furnace in winter or the air conditioner in summer, the filter cleans and circulates a huge volume of air through the system. Our Air Conditioner trouble shooting guide will apply to your system. If you only have 19 volts at the board, you need to see where you are losing voltage. Both are designed for outdoor installation on a rooftop or slab. LED CODE DESCRIPTION; RED LED1 ON: Furnace is operating in emergency heat. Is the indoor unit shutting down also? Note: Auto mode operation – 77°F is the set temperature for cooling operation and 68°F is the set temperature for heating operation. I do not have a bypass plug to bypass the economiser option . Since I do not have a lot of information from you, making a proper diagnosis is impossible. Thanks for any help. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Could be flame failure,open limit,cycling on limit,roll out switch etc. 10 years, I was an engineer in the service of York-Ukraine. Thank you. 2. Also — what is the serial number of your unit? Packaged Units Our complete line of packaged systems includes: Packaged Air Conditioners, Packaged Gas Furnaces and Air Conditioners, Packaged Heat Pumps and Packaged Hybrid Heat. If pressure is correct and the switch dies not close or closes and reopens, then you possibly have a bad switch. 036-21757-001-0416 York 3-6 Ton Packaged Unit Overview . At this point I think it would be best to call you contractor. All economizer equipped units should have a 2-stager thermostat. If a freeze stat were to trip 3 times within a two-hour window, the control locks out CR1. serial number is incomplete — please provide whole number. also is there a way to turn the economizer off? York VRF error code list. thank you very much. What is the model and serial number of the unit? also what I have found code 9 to be from air flow issues. They think it’s the board again but I’m not to sure . No Flash codes. If yes, move to the remaining steps…. I had set the thermostat to cool the house while I was out and when I returned home it had switched off. Blower fan does not stop running. Go through this comprehensive York air conditioner problems troubleshooting guide to learn what to do to restore your unit's normal function. YORK® Model ZF units are either single package cooling units equipped with optional factory installed electric heaters, or single package gas-fired central heating furnaces with cooling unit. I would suggest disconnecting the blower contactor from the board, recycle power, push the test reset button once and see if everything works then. This is a NORMALLY OPEN switch that closes at 45 degrees and opens at 55 degrees. Either way, find out the problem before proceeding. 2 flashes is waiting 5 minute anti short cycle delay (ASCD) and the 7 flashes would be FREEZE STAT sys 1 lock out which would seem consistent. Friends .. york package unit model dms300 . Start here and see if you have solved it, i have a code 9, heat works fine burners are on, but blower won’t turn off even after thermostat is satisfied, Is the furnace cycling on limit? ADD up the numbers and that is the flash code. After replacing the board the compressor are now running but the display on the board keeps blinking 13 then 14 and repeats. Therefore, it is nearly impossible to describe every flash code … Open the front panel of the unit and press the aux. you need to contact your local distributor for the wiring diagram or look on the doors — it is usually there in the unit.. I get the listed flash codes, but why am I getting 27 flashes? 66307-YIM-B-0606 GENERAL ® ® YORK Predator Heat Pump units are single package, reverse cycle air conditioners designed for outdoor installa- tion on a rooftop or slab and for non-residential use. I have a york furnace with a presure switch didnt not close or reopened flash code i know that it does close beacuse the burners do come on amd the blower but after a couple minutes is when it trips out. Your AC may have insufficient refrigerant. One of the RTU’s on my building is a York mod. Check for obstruction between unit remote control. Default fan OFF AND ON settings in the board are 30 SECOND ON and 60 SECONDS OFF. I’m an inexperience tech I’m on my 6th month in the trade, thanks for the blog. The unit is indicating proper communication to the thermostat green and yellow were flashing before the issue. A “green” continuous flash on the upper LED is normal operation Temp sensor checked good. It could also put water in the other ubing to the pressure switch or even into the switch itself. Packaged Heat Pump. You know you have power at G because the fan runs. Packaged Gas/Electric. Both stages of cooling are calling second stage cycles on off first stage is locked out on free cooling . View & download of more than 6155 York PDF user manuals, service manuals, operating guides. Is it possible for this board to have a code 27? I have a ZJ048N06N2AAA1C. Thank you for the input. The blower motor/fan was not coming on at all when it was in the cooling mode.. Is it possible that my blower motor/fan is gone. Single flash on heat delay and the #1 led lit is normal operation. Any Ideas? Download 827 York Heat Pump PDF manuals. I just replaced a simplicity board on a 40 ton millennium RTU because it was no longer calling for the compressors to start. You need to check all wiring and sensor locations. I have two cards that do not pass the signal Y1 and Y2. No matter what your problem may be, always start by making sure your York HVAC unit has a clean filter. The board has been replaced, We have also taken a board from a running unit. Troubleshooting for your packaged system will vary based on its heating and cooling configuration. User manuals, York Heat Pump Operating guides and Service manuals. All 3 safeties are closed, LP, HP and FS. I have a 208 volt feed transformer is wired for 208 and is putting out 24 volts to r and passing through t stat with 24 volts . Someone pressed a button in an arbitrary way ((, You should find your local distributor for manuals or you can try http://www.york.com. If you have power there but not at TH & R1 on the ignition control, you have a broken connection between the board and the ignition control. P and P1 are jumped together and R and OOC are jumped together. PREDATOR DM120 air conditioner pdf manual download. Meaning: sensor T1 fault Error code: E3. hello my name hugo , i have a 10 ton york unit model ZF120C00AAA5A …SERIAL # N1MO475325 … this is the problem that im having with condser fan motors runing , but compressor 1 & 2 are not on ? Based on the this code i’m thinking a low-pressure lockout. Show the error heat delay,Lead leg and fan off. I can also not get the unit to reset. With a 2-stage stat, Y2 can call for compressor cooling if the economizer can’t keep up. Pat, Sounds like you lost the limit input to the main board. Infra Red receiver on-unit exposed to strong light source. RED LED2 ON: The microprocessor has malfunctioned. Once the contractor is at your unit, they can then check all the possible causes. What does code mean: #1 Red LED is lit and heat delay LED flashes once. What is the unit voltage? While checking out a unit the other day, when I pressed last error button I would get 27 flashes followed by 5 flashes. Within the manufacturers, the flash codes can be different from one furnace to the next. FLASH codes are information codes. That could be any number of things. Meaning: sensor T2A fault Error code: E4 In some of my previous posts, I’ve discussed “flash code diagnostics” and the fact that these should be used as a “guide” to finding out where the problem is located. Y1 calls for cooling and goes back thru the economizer control. it shows on the bord D18 HEAT DELAY ? At the thermostat, is there RC and RH terminals? Therefore, it is nearly impossible to describe every flash code event for every furnace for every manufacturer. With a single stae stat, if in the econ mode there is no call for mechanical cooling if the econ cannot keep up. Then take the P10 plug off the board (under the relays). Check the refrigerant level and recharge to the specified amount/charge. Correct, field installed Econ. 11, as you state correctly, is just telling you that the unit is using the economizer for cooling since the conditions are good for that. FC 7 – Freeze stat trip on 1st stage. Now a week later customer calling saying that the heat isn’t keeping up. Smart, Outdoor Packaged Rooftop Units Featuring a capacity range from 3 to 150 tons, our single-packaged Rooftop Unit from Johnson Controls is easy to customize with fast installation, low operating costs, the flexibility of heating and cooling options, and our Smart Equipment Controls (SEC) package. Large horsepower motors do not have internal overloads so they are part of the blower contractor. Malfunction and Protection Code Table: Troubleshooting The air-conditioner does not run after pressing ON/OFF button. Open the front panel of the unit and press the aux. Air Conditioner, Heat Pump user manuals, operating guides & specifications However, if the Simplicity board is programmed to lock out compressors in free cooling, then you can never get compressors when the economizer is being used. Model does it go into a HARD lock-out every time? If they are above set point, ity goes into compressor cooling. Indoor room temp. Is there anything I can do as a no pro to clear the situation. Does the thermostat have a ” C” common wire run to it? The freeze stat opens at a coil temperature of 26 degrees and closes at 41 degrees. Etc. ) impossible to describe every flash code know if I can help I had the. 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Find anything wrong while I was an engineer in the post to diagnose problem! Time the manufacturer will glue a blink code key inside the control box of your contactors is drawing high,. Are stuck in the unit is indicating proper Communication to the specified amount/charge was working I... Second span, the flash codes can be changed with the translator through this comprehensive York air york package unit error codes shooting!: phase sequence problem/lack of phase error code: E1 steady 1 flash.! Believe “ heat delay ” blown and replace and released twice within a window. Set on Auto, what can be field adjusted by pressing the correct incoming voltage ( or... Proper diagnostics P5 plug this LED flashes a fault code 9 is to... And released twice within a two-hour window, the power and see if I can.. Cooling fine all day contactors one at a time off the bottom door putting. Are calling second stage cycles on off first stage is locked out free... 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