MHK2 Wireless Thermostat Install PRO TIPS 

No more gas is coming.

Thank you for watching the video!! Please give us a subscription and hit the bell button so you can watch all the new videos when they come out. Thanks again Jared

My pleasure!

How is that mind boggling?

@@ductlessplushvac It is mind-boggling because their systems are considered premium, and you need an additional part to connect the unit to the internet. And THEN you have to use their app, which has been known to be buggy and slow. I wish they would adopt a more open approach and allow 3rd party thermostats to have the same control as the MHK and Kumo cloud. As a consumer, I expect a premium experience from a premium brand. I think installers should expect that too.

@@Garrett_Builds Okay let’s really talk about this. The MHK2 has all the settings for the unit if it’s a wall or cassette unit. They can adjust the Vanes, the fan speeds, the temp obviously and control the unit similar to the remote. If you use 3rd party stats like a Nest, or a Ecobee you can’t do any of them adjustments listed above. 3rd party stats are for furnace’s and A/C systems. And if you really want to you can use them you will just lose all the features Mitsubishi makes a hardwired converter so you can use 3rd party stats.

​@@ductlessplushvac Your points are all great points on the functionality of the MHK2. I am happy that the MHK2 can do everything, but I am unhappy that it doesn't come with internet connectivity out of the box. I am unhappy that in order to get internet connectivity, I have to get lucky in finding the adapter online which has been scarce for years now. I am unhappy that the Mitsubishi stat ecosystem has no open protocol for integrating into a smart home. I am just plain disappointed in the start of the art indoor and outdoor units, with control units that plainly feel old and don't have the connectivity I can get from an ecobee, etc. For context, I am not using a wall unit, just a ducted air handler. You're right that I *can* use a 3rd party stat, and I was told by the installer that using a 3rd party stat on my unit would make the performance worse. Essentially, I would lose the ability to use the variable speed motor in the air handler unit. It would be on or off with little to no nuance.

I've thought about getting these for my bedrooms as they are well insulated and in AC mode. They cool the room down too quickly, it's a multi-split setup so the inverter can't go as low as a mini, and when the condenser shuts off outside, the fan keeps running and it becomes a humidifier. So I can have 70° with 70% humidity sometimes. So I have $50 celio breeze units that power the unit off when set temp is reached and get my humidity down into the 40% range. The idea of paying $350 for each bedroom unit seems a bit ridiculous. I was wondering if these shut the fan off in a different way than something like the Cielo.

You only get what you pay for. Mitsubishi makes Kumo WIFI controls.

Man how in the world do you remove this thermostat off the face plate. I cannot figure out how to remove the thermostat so I can replace the batteries without breaking the thermostat.

@@jackcarr2763 Jack great question, No 1 per indoor head unit

@@hatemhassn what kind of wire?

You might have the dry mode turned off in the backend settings. You need to check to see if it was turned off in the setup.

Well how hot is it outside when you run it down to 60? 100, 95, 85……? You must have an outrageous utility bill! Congratulations 🎉

Thank you Paul Jared

Thanks for watching if you can give us a Sub

No I didn't use the default

What kind of thermoset do you have? You can change the maximum and minimum temp settings from the backend of the settings menu. Find the paperwork and it will let you know how to set it up.

I've never heard one pop and Click. Make sure your filter is clean. Make sure the grill is put on right. If that don't help Then get a tech over to look at it.

@@ductlessplushvac it's almost like the heat from the refrigerant against the cold plastic is what's causing it. It's not like a fan motor or anything

@@crackpotcake I've never heard that from a ceiling cassette, only wall units can do that.

Pull it off the wall and install the batteries

Thanks David. We use line-hide very expensive tho!

Yes the all need to be individual stats

You pull it off the wall and the batteries are right there to AAs

I called them and let them know 786otto wants this done

You can build a wireless connection for $10-20 that works with home assistant. Yeah, probably $1-$2 at manufacturer’s cost.

@@silverbackag9790 Thanksfor really

So the indoor unit has a thermostat. If you use an MHK2 then the indoor unit will no longer operate at the temperature the MHK2 will. If you want to stop the unit from blowing you have a group of dip switches in the indoor unit. I believe it's the SW1 you will want to turn off that should stop the unit from running past the setpoint. I'll double-check this week and get back to you. Thanks for watching the videos please subscribe if you want more info and to watch new videos.

@@ductlessplushvac thanks. I was really excited about these units but the more I dive into them the less impressed I am with Mitsubishi and lack of documentation around operating these units as a system using a branch box. Anything you can find would be greatly appreciated. I did subscribe.

Yes you can. It can be done with a MHK2 stat or dip switches I'll have to research the dip switch settings and get back to you.

@@ductlessplushvac thank you. They are the mlz one way cassettes.when the room isn't calling for heat the fan keeps running giving a constant breeze.and seems like a waste of electricity running fan all the time

@@ajh7379 I'm in the same boat...it's incredibly frustrating. The people who installed are now saying it's an electrical issue, but it also seems like they have no idea. May need to get another opinion at this point.

I had the same problem, living room unit was causing the cold breeze on my wife. I fixed that unit by cutting out resistor JR01 off of the circuit board per Mitsubishi application note 3048 (Note external temperature sensor is required for this, I have the little one that stick on the wall PAC-USWHS003-TH-1). There is also a resistor JRRE right next to it for turning off the fan when cool temp is reached this is also listed in application note 3048. Mitsubishi application note 1033 says that these units are supposed to run continuously but that just does not work well for me, I find they sometimes they keep putting out heat well above the set temperature except for the one in the living room with the resistor removed. I will likely cut the resistor on the other units at some point, it's just a pain to access that part of the circuit board to cut the resistor. I currently have 4 of the 5 units set to turn on and off based on room temperature using Home assistant with the Kumo Cloud integration so mine run like a regular heating and cooling system instead of the way mini splits are supposed to run per Mitsubishi.

I found a link to Mitsubishi application note 3048, They have updated it since I last downloaded it 2 years ago, it looks like some unit's have switches, mine have the resistors: device.report/m/3d1f620a84b1e8d81969a9e8a16199aa038669bd00c6b1798117e24419ba750a.pdf

Bring the stat near the receiver and try it. If you have other stats you need to unplug them sometimes

There are no other units at all and I am standing right next to the handler with the remote. One to 5 feet at all times. @@ductlessplushvac

@@ew4265 are you sure you have them plugged in the right ports.

Yep, I followed several videos to determine the correct plug and they pair properly. @@ductlessplushvac

@@ew4265 go get a new one. It might be bad.