A tech once told me if that line is sweating it’s likely the system needs a charge. What can it be? how do i fix this? LED LD5 LED ON Outdoor fan ON LED Flash Over current relay (51CM) operation. I would recommend getting a second opinion from another professional. Would you advice ? Most modern wiring systems work … LED LD6 LED ON 4-way valve ON LED Flash Thermal swicth (26C) operation. I have a mini split system heat pump and when I switch to heat the condenser comes on and the air handler it won't come on • To use this unit correctly and safely, be sure to read this operating instructions before use. The control boards used in a modern mini split system are very much a miniature computer. or blown out not warm wind for a moment at HEATING operation. Can I swap part to troubleshoot ? A wind baffle can also provide some help. When you turn the larger head on by itself that head operates fine. I checked power from the fuse box to the line. Tenant is not happy, please help. Any thoughts? I have my regular furnace set at 65 during the winter so it kicks on if the temp dips into the single digits disabling the split unit so we have heat (Unit is 12-130 degree range). Title: SG79Y403H02.pdf Author: shinomh Created Date: 12/4/2006 9:36:09 AM Thanks! I downloaded the manual and searched online. Thermostat is set at 62 but the unit will heat up to 74 room temp. Set to 21 it runs to like 26 and cut out. It operates at a much higher pressure than other refrigerants and requires special care to ensure a properly functioning system. 1. Make sure you check your units specifications when looking for all year cooling. Your email address will not be published. I can’t find this error code any where online or in the manuals. When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON), the indoor electronic control P.C. It sounds like there may be an issue with one of the thermistors on your unit. It runs fine for about 10 minutes then goes into preheat mode for 10 minutes and runs fine again. When in heating both work fine. Lack of insulation for refrigerant piping. Any guesses? We have a few month old 9000 BTU Comfort Aire unit installed in our bedroom. It has happened again and it is very hot now so I can’t leave it off for long periods. Initially made cold air, but stopped in about 2 minutes. It sounds like you have a leak. . Unit has had no issues until recently it developed a squeaking noise when the fan turns on. Most systems come precharged with some refrigerant, but depending on the length of your line set, more might need to be added. I have a AUX mini split unit that heats fine but then the set temperature light starts flashing & the unit stops working. I would get a second opinion from a new service tech. LED ON During 63H1 operation LED Flash Pipe sensor short/open; LED LD4 LED ON Compressor ON LED Flash High pressure swicth (63H2) operation. Any trouble shooting ideas I can try before I call a pro? Indoor evap seems OK. That doesn’t sound right. There are no error codes. (Address is other than 0.). as repair techs cannot figure it out . The squeak stopped but returned after a couple of hours. The 18,000 unit seems to be lacking in production in AC mode. I tried putting some more Freon in ( a professional did) and it worked for a couple days. "PLEASE WAIT display is remained on the remote controller. • If the filter is clogged, indoor pipe temperature rises and discharging pressure increases. This error seems to be a condenser pipe sensor error. On 2015-12-18 by andres. 18,000 with 24,000 Heating. When I turn on the AC, cool air does come out but I am unsure if that’s just the cool air from outside or if the unit is actually working. As temps go down in the evening the compressor turns off and the E6 reappears. 5. The warranty period for the Mitsubishi Electric Air-Conditioner is twelve (12) months (and sixty (60) months for the compressor) from the purchase date as indicated in the Proof of Purchase (e.g. If your condenser is not grounded properly, you may experience some issues, such as improper operation. Most local codes require 14 gauge wire, so using something smaller will not pass inspection in many areas. View online or download Mitsubishi electric MSZ-FH12NA Operating Instructions Manual, Service Manualce Manual, Brochure & Specs When in cooling one head works fine, one head doesn’t cool well. Freezing/overheating protection is operating. Greetings, I have a 12k BTU Senville with the wall mount evaporator. I have a system where I’m getting 240 at the head but nothing is happening, no lights, nothing. The tech support did say my low side was registering a little high, unfortunately, the Senvilles don’t have a high-side port. Condernser will not come on…head unit opens and closes flap, but no fan! SPLIT-TYPE AIR CONDITIONERS OPERATING INSTRUCTIONS INDOOR UNIT MSZ-A18YV MSZ-A24YV MSZ-A26YV MSZ-A30YV Thank you very much for purchasing this Mitsubishi room air conditioner. Two units in a 500 sq ft apartment but the things can’t keep the place cold. Hello, After "startup" is displayed, only green lights up. The coolant level is right on the line between full and over full. The unit is a Seville and it cools fine but when you turn the heat on it goes to defrost mode and run and shows a code of PO And P4 the outdoor unit fan will come on when the codes appear and runs slow and then will kick off after about five seconds can you help with the problem. Everything else works well, fan cooler, dehumidifier but when we set it to heat, it turns off. Outdoor unit protection device connector is open. Your email address will not be published. As temp increases outside to about 78 the compressor will come on and the inner unit works normally and the E6 is gone. (1) When LED2 is lit. Is that the Odor of the Freon leaking out ( intermittently ? The lists of issues which may lead to your Mitsubishi heat pump not working are displayed on the page below. Mitsubishi electric MSZ-FH12NA Pdf User Manuals. How do I get a Daikin rep out to review the installation and trouble shoot? Both the inner and outer circuit boards have been replaced. Even controlling by the wireless remote controller, no beep is heard and the unit does not start operating. Could you please help me fix it. The control system of the Mitsubishi air conditioners reports that an error occurred by blinking of a light-emitting diode on the surface of the internal (or external) unit. Cost $600 and the guy said this would fix the E6 problem, but it did not and no one seems to know what to do next. The breakers were tripped again as well as the fuse blown. I turn it on in the morning and E6 error code shows on inner unit, which is a communication error, the inner fan runs but compressor does not come on so no cooling. Operation display is indicated on wireless remote controller. Any ideas on how to solve this issue would be appreciated. Adding more refrigerant is just a temporary solution. Mitsubishi customer service was of no help. This past April, while on vacation, it started cooling to the point the furnace kicked on and they essentially were fighting each other. I have a Fujitsi mini-spit on my first floor. However when I went to test and try the system the indoor unit doesnt work. Blowing room air temp. Depending on the unit, this is possible. What can I do to get that fan “Un-stuck”???? A wind baffle will expand the range of the unit. 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