What would I look for to find a place? In this state, current positive terminal to ground is 8 u Amps, as measured with a multimeter. Bekasi General Point Elektric (1) Tambah ke Wishlist . and I charged the batteries with external power source and started the UPS. Hi Swagatam, I just disconnected the UPS supply so that my fans and lights will work from direct source ie electricity power supply. initially remove the battery and check the resistance across these connections and check if it indicates a short, and keep following the lines until you discover the faulty part or the fuse or whatever may be responsible for the issue. You can make the AC power be any level that you want and to any frequency that you want. Low what could be the possible reason . Also it now takes 10Amps from battery on no-load. help to to my gmail: Hi Julius, it is definitely repairable, however it could be a lot of hard work to test and replace the burnt parts, which could include ICs, mosfets and other semiconductors. On the engine switched on it goes down to even 183 V. Please advice what could be an issue. Contents = Communication(Indoor Wired R/Control) If power failure occurs, turn the mode control to OFF. Saved by Sunil Agarwal. ?, But there is no burn issue and other major malfunction and giving backup voltage properly(manually). But there is still one big challenge, the inverter output when in inverter mode is not uniform. I thought the Lm324 Quad amplifier ic was the problem so I already purchased some but since it’s d oscillator is bad i have to condem everything. Please what can do to rectify it? Thank you very much for your reply,sir. DC input is showing 130V in UPS panel. This particular inverter is designed to plug into wall AC to keep the batteries charged and pass through 'wall' power when it is available. It will need to be examined by opening the inverter, It cannot be judged by assumptions. The positive cable burned but fuse is intact? and possibly what is the cause of the smoke and how to avoide future accurance, sorry that could be difficult to judge without a practical testing because a smoke could be caused due to many different reasons. does it contain some kind of critical sensing circuitry? Hello sir howcr u….My problem is that i m having a luminous 800va inverter 150amp battery attached to it…it's charging led were not working…so when i was repairing that board..it touched in heat sink of mosfet…after that none of the led's are working…it's not a big issue but….main problem is that inverter giving low output voltage 150 volts…on load and on no load…i measured it's battery charging amperes…which is 12amps…i tried different battery but problem is same….are mosfet's blown up??? I HAVE A 2.4 MERCURY INVERTER JUST ONE MONTH OLD DE SREEN JUST WENT BLANK A TECH MAN SAID I SHOULD CHANGE THE COMPLETE PANEL I DO NOT KNOW WERE TO GO ABOUTE IT PLS. My two led bulbs blows out. Indoor fan lock error is occurred by no feedback signal from Hall sensor located BLDC Motor in 50 seconds delay time or feedback signal lower than 50RPM. What could be the cause of this unending blow out? What could be the issue of getting this messages and inverter triping. If I keep inverter off for some time( say 30 mins) and switch on the inverter it starts working properly(ie there is no low battery siren). Hi swagatamI have a sukam 750va inverter. Inverters can be of two types True/pure sine wave inverters and quasi or modified inverters. At that time the inverter worked properly for about 3 hours with lights, fans , TV switched on. Transformer vibrating certainly indicates a short circuit somewhere across the MOSFET bridge, which will need to be meticulously diagnosed using an oscilloscope. Call +91-8068442299 Dial Ext 788 when connected. … I was hooking my inverter up to an automatic transfer switch and incorrectly read the diagram and had 120V pumped in the output of my inverter. The problem is that most times the screen will not turn on, it just makes a ticking sound. Outdoor Status = Off, Error Code = 44 All rights reserved. Thanks Carlos, you will have to check the output from the IC KA7500, its oscillatory frequency, and then check the MOSFETs whether are burned or not. The bulb must not glow brightly, and there should be some low buzzing sound from the transformer, all these would indicate the inverter is probably working normally. If the lamp illuminates without any load at the inverter then the circuit could be having a short circuit somewhere! Daikin inverter AC indoor outdoor PCB repairing. Contents = Discharge Pipe Temp. LED02G = 2 times (Green) Hi Swagatam Congratulations for your excellent forum. My question is ,can I get rid of original oscillatory circuit and construct a seperate one and use bc547 and bc 577 on driver stage. Bekasi lasman toji (3) Grosir. I only used 7AH batteries so I am not sure if the voltage is too low or the batteries not big enough. Problem: Some odors may be emitted from an indoor unit. US $0.10-$6.00 / Piece. 2 years is quite a long period of time and things can get faulty within this period, change it once more and this time tell the engineers to show you what exactly they are changing and also confirm the operating parameters of the unit….and do not give them the old module….keep it with you and check it afterwards whether it was really faulty. It would be difficult to locate the exact fault without a practical check up, but broadly it could be due to a faulty part in the low battery sensor circuit stage or a bad solder point in this stage. But have checked all bias resistor around and all are OK. ... MODUL PCB INDOR AC DAIKIN INVERTER THAILAND TYPE FTKD20 FTKD25 FTKD35. 1. It works by detecting the resistance between the two input pins. Sahota Electronics. Inverter Kit (210 products available) View by: Product | Supplier. After replacing the mosfet and the IC affected and powered is beeping and indicating overload and low battery. Order) 10 YRS Shenzhen Xindaxing Electric Technology Co., Ltd. 73.9%. And in 2018 BEE has merged the star rating levels of inverter and non inverter ACs. If you doubt the MOSFETs you can make JIG to test the MOSFETs first before installation. hell sir, my home inverter doesn't give output. Heat sink temperature sensor open or closed circuit. For info on Inverter oscillators you can also refer to the complete tutorial which explains how to design an Inverter from the scratch. Case Of Error = Open / Short circuit. Discharge temp more than130 °C 2. Problem disappears when the device is unplugged from inverter. The DIY inverter board can handle up … Inverter is working fine but when main power goes out. Posted by Swagatam Majumdar to Electronic Circuit Projects at March 27, 2017 at 3:33 PM. 1) All LED/LCD TVs have an in built SMPS circuit which will confortably convert any form of AC to DC for the operation, it a square wave can eb used without issues. Case Of Error = Cond. Next, check the relay changeover stage, and it’s working in response to AC input availability or removal. I have a Hyundai 3.4kw inverter generator (HY3600SEI). In US homes the neutral is grounded at the panel. In this situation you can remove all the MOSFETs and check them separately using test Jig, and confirm whether the MOSfeTs are really bad or not, and next check the oscillator IC output for the same..or may be simply replace everything along with the oscillator IC…, finally after everything is replaced with new parts make sure to put the bulb in series with the battery positive, while testing the set up. It does not supply power again . If it is indeed the transformer where can I purchase one? Hi, Thank you and glad you liked this post! Meaning when ever oscillator ic goes bad we have no option than to condemn inverter for a new one since only manufacturers can do this. Hi swagtam, My 1.5kva inverter in my office which has been serving for about 2 years one day was on and when I was printing with a Laserjet printer there was alarm from the inverter and the bulbs in the office began to oscillate dim and bright after finished printing the inverter sparked and there was smoke so i rushed to switch it off. Contact Supplier Request a quote. By contrast, traditional air conditioners regulate temperature by using a compressor that is periodically either working at maximum capacity or switched off entirely. It is mandatory to procure user consent prior to running these cookies on your website. If it shows over 150V, the high voltage could be causing the issues. Kindly advise. LED01G = 6 times (Red) Brief on working of the said circuit towards force activation/de-activation of relay beyond upper/lower cutoff is also requested. Pls help me to locate exact circuit in JENUS make Home UPS/inverter . I am an electrical engineer but not so much into inverter. What could be the likely problem? Remember battery voltage does not drop, but circuit voltage, just like a resistor dropping circuit voltage. Yes, if the DC supply is low then the inverter will auto switch OFF, so you may try little higher voltages, although that may be risky. Indoor temperature sensor open or closed circuit. About 5% of these are Other PCB & PCBA, 1% are PCBA, and 1% are Multilayer PCB. Hello Thatcher, you can replace the original oscillator with your own but you can do this only if you are able to figure out all the details about the functioning of the various stages and if you are confident about the various connections that would associate with the oscillator. How can it charge when it is all off? so that i can go for this new one. Outdoor Status = 0ff, Error Code = 53 Go Power doesn't repair their own units as mentioned prior. Outdoor Status = Off, Error Code = 61 There were no cables for connecting the batteries. Case Of Error = Heat Sink Temp. still, you can try charging the batts externally and try again to see the effect. On reconnecting the power supply, the screen lights up, but a black warning triangle flashes and there is 0v output. Alibaba.com offers 3,651 ac inverter pcb products. Hello Mr.SwagatamI have 500w inverter which I use with car battery and by mistake I placed the positive (catch) with the negitive bettery output and placed the negative (catch) with the positive bettery outputSince then the inverter is not working.I wonder whats the problem and how do I fix it? Harga Murah di Lapak MNC OLSHOP. The other GFCI is grounded to the common ground which includes a connection to the DC negative, the shore power ground (green wire), ALL ground wires for all devices, and outlets, (except inverter), and the frame, and a jumper to the neutral Bus on all outlets (except inverter). Virar East, Virar, Dist. We are renowned in the market for offering wide range of Air Conditioner PCB Boards. sorry, that would be difficult to judge without seeing. Error Contents: Indoor Air Sensor Open or Short, Error Contents: Indoor Pipe Sensor Open or Short, Error Contents: Outdoor Air Sensor Open or Short, Error Contents: Outdoor Pipe Sensor Open or Short. Thanks, Hi Daniel, Yes PIC ICs normally come blank and will need programming with the desired code before installing. Case Of Error = Off left inverter – right Ship breaker bus with Shore, and generator off. Hi, i have 5kva must p1800 hybrid inverter, some 2 capacitors swallowed sometime ago causing the inverter to stop working i replaced them with the same same size i put it on it came alright output and everything but it stop charging the batteries from both utility power and the solar panels it displays bypass mode on the screen dont know what to do please help me. 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