MITSUBISHI MHK2 Dual Set Points, PROGRAMMABLE, Wall Mounted, Wireless Remote Controller KIT

Works well and setup was easy

6 months review updated It sucks. This thermostat has a mind of its own. It’s difficult to use and impossible to get any programs to work correctly. Be extra careful if you have more than one head, or it puts one in a/c and the other in heat and break your system. Very aggravating To install the wireless mode take two people and a couple of hours to completely take the mini split apart. How about just providing a port! Ridiculous. I can’t get over how such a gold star a/c system can have such a lackluster online system in this day and age and basically charge you $500 to put just one of your a/c heads online. Shame on you Mitsubishi for this greedy money grab. Now we have an issue where I have switched over to the propane heat, and yet the mini split keeps turning itself back on and Heating at the same time. I have turned the mini split off at least 20 times, only to come back and look at the app and see that it has turned itself back on. No idea how to get it to stop doing that. And now that I’m looking online, it seems to be unknown problem. Dont bother. ——————- original review The app kind of sucks but it works. I need it to lock out the tenants so they dont run heat on one and a/c on the other head. I can't do this using just the remotes. I haven't figured out how to do it yet, but the options that are available are 100's long so Im working through it now.

Like it better than hand held remote that came with unit. You also will need to buy their wifi hub to connect this thermostat. I believe this equipment is overpriced, but if you need wifi go for it

If you have a Mitsu Heat Pump with a handheld remote, this is way better. Minus one star because it cost about 4-5x what it should cost.

Many buy the MHK2 to get the temperature sensor away from their head unit, which may be on an exterior wall, up high, down low, etc. We paid for this expensive Redlink device and are not happy with its primary function: a controller. In short, it does a bad job. Mounted right next to the old thermostat, in addition to having placed a third thermometer, the MHK2 will reflect temperatures (not settings) that range in differential from +1 to +6 degree F. Calling Mitsubishi, they recommended reverting to the head unit's sensor, which gave more accurate results but still allowed the call for heat to stop up to 2F short of the setting. I expect Mitsubishi may not swap for another, given many complaints about these units, and I'll be eating >$500 (MHK2 and Kumo) to instead control Mitsubishi's hardware (which I have no complaints about) using an Ecobee, or other.

We had a 4-head Mitsubishi Mini Split system installed last Summer. It came with hand held remote controls for each unit. The larger unit in the living room was very accurate- the temperature in the room would stay within one degree of the temperature we set on the remote control. In the three bedrooms, however, we had to set the remotes to 77 or 78 degrees for the room to be at 72. And in the Winter, we set the remotes to the lowest heat setting (61) and the rooms would go up to 80 degrees! The reason this happens is that the bedroom units are a little oversized, even with the lowest btu available (6000). The actual thermostats are in the units themselves, so they do not accurately reflect the true temperature in the room. The living room unit is more accurate because it is perfectly sized (12,000 btu) for that space. The MHK2 thermostats can be placed on an interior wall, away from the units themselves. The units send a signal to the thermostats thru Red Link technology. The room temperature is monitored and controlled by the MHK2. It provides much better control than the hand held remotes. Now the temperature in each bedroom is within one degree of what we set on the MHK2. I highly recommend the MHK2 if you want better control of your Mini Split system. You can put them anywhere you'd like- no more having to use a hand held remote!

I'm in a dilemma for how to rate this. My wife and I bought a home built in SoCal in the 1960s. The prior owner had put in a 6-head system in 2016ish. No thermostats were put in when it was installed, just had the remotes. Being a home of this age in SoCal, there is no insulation in the walls, so the units are highly suceptible to being thrown off by sun baking the outside of the house. In one room I can set the unit to 85F and the room will still be a meat locker at certain times of the day, wasting energy and money! The MHK2 makes a huge difference in the accuracy and usability of the indoor unit, it does what it advertises well and I just have one complaint from that perspective. With the units I have, the fan speed control is... disappointing. I can either select "Auto" or a set speed of 1-5 or something like that. For the space this particular unit is in, the Auto fan speed control is not aggressive enough to circulate air effectively through the space. But if I set the fan speed to one of the fixed speeds, it runs at that speed, regardless of whether or not it's actively cooling. Which means I have it set to the mid level setting, which for noise is noticeable but not loud, and does an OK job with the circulation. I would really like for the unit to be smart enough to switch to the lowest speed or turn off completely when the setpoint is met. I see these options are available for different indoor units, however my units (MSZ prefix) do not support it. Installation was pretty straightforward. I'd recommend seeking out some youtube videos specific to your indoor unit if you aren't familiar with removing the covers to get at the control board. Did they need to make the cable black, though? Even just the couple inches that are exposed where I mounted the receiver stick out like a sore thumb. However my main gripe is, these only control one unit, so at $300 apiece, I've only upgraded one so far-- $300 for functionality that is decidedly not modern. Considering you could get a basic programmable thermostat for a central system for ~$30, or Nest or similar for ~$100 which gets you modern connectivity as well, that makes this feel borderline criminal. Oh wait, you want to control the mini-splits from your phone? That'll set you back an additional ~$300 per unit. So to sum this up. If I wanted to outfit my entire system with basic, decades-old programming functionality, it'll cost me $1800. Add each to the Kumo cloud to centralize control of the units via the app and make changes from anywhere as well? Double it. This doesn't feel like paying a little extra for the brand name, it feels like being taken advantage of by a closed, poorly designed, customer-last ecosystem. I didn't win the billion dollar lotto, so we're stuck with what the previous owner installed for the foreseeable future. But if you're in the market for a system yourself-- I don't know why you'd be reading this review, but if you are-- I highly suggest you research other brands to see how they are controlled, and the associated costs for modern functionality / integration with home automation ecosystems or industry standards to see if there are better options out there.