I own a Mitsubishi split type air conditioner (upright compressor unit outside connected via IS copper tubing to the blower unit on the inside). Is There Some out of regular maintenance That I Should Be Doing it this A / C?
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December 25th, 2011 on 10:23 pm
You have a central AC unit, not a split. Next thing is it a heat pump unit also? If you read the posts on here, allot of people complain there not getting enough heat. Here in New England USA, we have central air units, but not so much heat pumps. The winters are cold (below 32 Degrees) and heat pumps don’t work very good below freezing temp. If you want to be sure your AC unit will work when you need it, Yes do have it serviced every year. If you want to be like most of the posters here, (and not trying to be a smart ass) then let it run till it breaks. Like everything, routine maintenance is the key. Read the owners manual, understand how your system is set up. Know where the fuses are, breakers, filters Etc. My AC unit is over 30 yrs old, and still purring like a kitten. I’ve been in the heating/ cooling Business for over 32 yrs. I installed mine when I first started, and with routine maintenance it has lasted me a long time
December 25th, 2011 on 11:13 pm
In the paper work for the equipment you own is a maintenance schedule just follow what it says. if you need the paper work you can get it on-line or call the company and thay will send it. I do not exactly what kind you have but change the filter or filters and keep the registers (grills) clean check check electrical connections for broken or cracked conduit and or fittings open electrical box and do a visual check. there could be a grease fitting on the fan and or fan motor both inside the house and outside if so grease them but do not over grease and use the wright kind change the batteries in the thermostat if they are used 2 times a year. It is always advisable to change all batteries in the house 2 times a year. Flash lights smoke alarms thermostats emergency lights and other alarms as well
December 25th, 2011 on 11:58 pm
The air filter should be changed every 90 to 120 days. The outdoor coil should be washed twice a year, once in spring and again in fall. Make sure there is no vegetation growing near the outdoor unit since they can interfere with the airflow across the coils. There should be about 30″ of clearance around all sides. The indoor blower motor bearings should be lubricated occasionally if they are not sealed bearings. You might want to clean the indoor blower wheel once a year. Lubricate the bearings at this time. All electrical connections should be tightened every six months. Electrical energy running through them will cause them to expand and contract slightly. Do them when you wash the outdoor coils. Make sure you turn power off while doing it. There should be an electric heater element on the compressor called the crankcase heater. Check to make sure it is working properly by measuring for amperage. Your unit may not use a crankcase heater. Some manufacturers have crankcase heat delivered by a different method. It involves a particular method of wiring the main power for the outdoor unit. The wiring diagram on the casing of the unit will tell you if there is a crankcase heater element. If you are not familiar with reading electric schematics, you can have a service technician come in and read it. The service technician can also show you how to do the various things I have described. Having the technician come in and demonstrate can be well worth that one time service charge so that you will know how to do the things and where they are to be done.