We have a split system and can not figure out how to heat different zones (ie bedrooms). Can you please help?

The way to reset these units is to turn off at the breaker for at least 2 hours and preferably overnight. It does have an internal PCB reset button that is mentioned in the Service Manual. It is a VERY complicated system!

https://www.google.com/search?q=LG+MINI+SPLIT+LMU540HV+reset

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doesnt sound right but are you certain you arent trying to dehumidify the bedroom? that would slow the fan down

Zone Heating means that you heat only specific parts of the house like the ones you use the most. You can heat your bedroom at night and the living room during day time. Yes, zone heating is beneficial as it saves fuel and cuts down your fuel costs. Info: https://www.theoriginalflame.com

Is this a zone system with 2 tstats?

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

Ducted A/C has an internal fancoil unit installed in the roof space of the home. From this central location, a series of ducts run from it and into as many rooms in the house as the owner desires. From these ducts, this allows you to cool or heat each room individually – called zoning
Split systems stand out for their relatively low initial purchase price. Another perk is that the installation is not so invasive – it can often be done in a day or less from a licensed technician. Though, being that the unit is fairly small, it is best suited to cooling or heating one room – this is either a positive or negative depending on how you look at it. On one hand, it’s an efficient option if you only need to cool or heat one room, but on the other hand they are less effective in larger spaces. Rarely could a split system air conditioner cool or heat an entire home. Split system air cons are great options for small areas, but lack the power to affect larger spaces – this is reflected in their relatively cheap purchase price, from around $1,000-$2,000.

This type of unit is called a Mini Split Air Conditioner.

Hope that helps you check us out at Air Duct Cleaning

Hi don the error code is a system overload. There are a lot of things that could be causing this temperature short circuit. Inwould take the cover of the unit and see if you can visually see any maybe dust or debri on any condenser coils or fans. If you can't figure it out call an expert.
Here is a link to the manual for your system
http://www.supco.com/images/Seabreeze/New%20Material%202011/NEW%20MULTI-ZONE%20INSTALL%20MANUAL%2012-10.pdf

Okay couple questions here because either you have hot water baseboards or you have electric baseboard heaters.
- if the system is a hydronic baseboard heater fed form main boiler, usually this means your space heat is controlled by a zone valve which the zone valve is controlled by your thermostat.
-if you find the zone is controlled by a zone valve than it is possible the zone valve is defective causing hot water to bleed past the zone valve even though your t-stat is telling it to close.
- first find out what excatly the baseboard is heated by either water or electricity
-next personal message me and I can walk you through it

JUST A REFERENCE; Unit designed to heat 900 sqft. 300 sqft per thermostat. When heat comes on and only 1 zone is calling the unit doesn't heat 1/3. It heats the 900sqft it's designed to. Therefore that "extra heat" HAS TO go somewhere. If it doesnt go to the "non calling" zones the unit would shut down on safety because it would get too hot. So, open a window or you need a bypass damper with bypass duct installed that when the heat comes on for only one zone that "bypass" opens and sends the "extra heat" back into the return rather than to the "non calling" zones. To answer your question, nothing is wrong with your unit or tstats, it's the duct work. Maybe $600 to $800

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79