1 – Installation and operation manual 1 – Cable with connector – 20 ft. (6 m) IMPORTANT! Frequent changes to operating mode may cause system malfunction. Allow at least one minute between mode changes to allow the system to stabilize. Lennox Mini-Split Systems Wired Indoor Unit Controller (M0STAT61Q-1) WARNING Improper installation. Hotsmtbang Replacement Remote Control for Lennox MS8-CI-09P1A MS8-HI-24P1A MS8-HI-30P1A MS8-HI-12L1A MS8-HI-09L1A AC Air Conditioner. 5.0 out of 5 stars 1. Get it as soon as Mon, May 17. HCDZ Replacement Remote Control for Lennox ACE YV1FB7 Mini Split AC Air Conditioner. Minor variations in these pressures may be expected due FV50S PVE is the ONLY acceptable oil for Lennox MS7 to differences in installations). And MS8 mini-split systems. IMPORTANT Polyvinylether (PVE) is an innovative refrigerant oil If the operating pressures do not fall within the ranges given specially formulated for hydrofluorocarbon (HFC. Well known for its durability and performance, Lennox ductless mini split systems are a perfect cooling solution for any room. Rated at 11.5 SEER, this system offers high efficiency without sacrificing its effectiveness. Make any room comfortable today with Lennox. MINI-SPLIT SYSTEMS MS8Z Lennox® 8 Series Multi-Zone Heat Pumps - R-410A MODEL NUMBER IDENTIFICATION MS 8 - ZO - 18 P 2 A Major Revision Series Type MS = Mini-Split Nominal Cooling Capacity 18 = 1.5 tons 24 = 2 tons 30 = 2.5 tons Minor Revision Voltage P = 208/230V-1phase-60hz OUTDOOR UNITS Number of Zones 2 = Two Zones 3 = Three Zones 4 = Four.

The Complete List of Mini Split Manufacturers

This list is constantly evolving. As new mini split manufactures come into business we will add them to the list. If you know of a mini split manufacturer that is not on our list please leave a comment below so that we can get them added!

We try to provide an accurate synopsis about each and every manufacturer on this list. (Click any name on the list to scroll down and read the synopsis.) If you represent one of these manufactures please contact us, we would love to have your input!

Mitsubishi

Obviously you have heard this company’s name before. Mitsubishi a giant conglomerate based out of Japan. They were founded in the 1800’s by Yataro Iwasaki and got their start as a shipping company. Over the next 150 years they have grown into an international brand with over 600 companies under their umbrella.

All Mitsubishi companies utilize three basic principles. They are 3 different Japanese phrases that were penned by Koyata Iwasaki way back during WWII in the 1930 era. The three principles are: Shoki Hoko, Ritsugyo Boeki, and Shoji Komei. Shoki Hoko is their belief that they must be responsible to the societies that they do business in. Ritsugyo Boeki is their support of peaceful global relationships though business. Lastly, Shoji Komei states Mitsubishi’s dedication to integrity over profitability.

The division that is responsible for mini split A/C systems is technically titled Mitsubishi Electric. Mini splits are made and distributed by the cooling & heating subdivision of Mitsubishi Electric. Their official website is http://www.mitsubishicomfort.com .

Mitsubishi makes some of the most popular mini split air conditioner systems out there. They first started doing business in the USA all the way back in 1980. Mitsubishi Electric introduced their Mr. Slim line of products in 1982 and are still selling them. It is technically a heat pump not just a mini split ac but they are of a similar design and provide a similar functions. Heat pumps are more geared toward cold climates rather than hot climates because they provide heat as well as cooling. A mini split a/c will provide cooling only. Here is a video directly from Mitsubishi that goes into detail about how their Mr. Slim heat pump works. https://www.youtube.com/watch?v=QovhagNTyaE

They continued to expand their heat pump line in the 1990’s with the introduction of the
MXZ line. This was a product that was designed to heat more than one room. In fact you can use this product today to provide heating to up to eight total rooms.

Today Mitsubishi has many different options to choose from. They sell both indoor and outdoor units separately so you can create the solution that is best for your home. Mitsubishi Electric now has mini split ac only units as well as full heat pump systems.

Pioneer Mini Split Systems

The Pioneer mini split brand is owned by Parker Davis HVAC Systems is one of world’s many producers of heating and cooling products. This organization is one of the biggest providers of inexpensive ductless mini splits in the USA. They have been operating as Pioneer since 1995.

Pioneer has been set up to offer direct sales of a/c units to the overall population in North America. Their all-around prepared associates in the client administration and specialized help divisions are at your administration for any inquiries and to give a fine purchasing background to our customers.

Pioneer is often confused as being related to the Pioneer Electronics Corporation that is so well known for stereo equipment and other common electronics. They are not related at all. It’s easy to understand how someone could get confused but upon further investigation you will learn that they don’t even share a common history. Pioneer Electronics is a Japanese corporation and Parker Davis, the owner of the Pioneer mini split brand is headquartered in Miami.

Pioneer makes a few small-scale split units with 12,000 BTU option being one of them. A decent amount of Pioneer units have a heat pump so you can heat and cool your home with one unit. You can watch a review on one of the split units, the Pioneer Ductless Mini Split AC 12000btu here https://www.youtube.com/watch?v=-xg0KODch9g

Pioneer brand heat pump systems come in a range of capabilities; from 9000BTU to 48000BTU per hour. They use an inverter setup with a multi-speed compressor, which helps with making higher efficiency levels. All Pioneer ductless mini splits include a wireless digital remote controller that allows users to easily select between the multiple operating modes. Also there is an automatic mode that allows for fully automatic function through the mini split computer.

One of Pioneer’s Newest Designs is the Pioneer WYS Series Ductless Wall Mount Mini Split System. It was engineered for unrivaled efficiency.

Check Out These Pioneer Mini Split Reviews

Fujitsu General

Fujitsu is a large Japanese conglomerate. In addition to mini splits, Fujitsu also manufactures many other electronic products including: servers, computer peripherals, and even automotive relays.

Way back in 1936, long before Fujitsu began manufacturing mini split air conditioners they got their start with making radios for the Japanese market. It wasn’t until 1971 that Fujitsu got into the A/C business. Today, their mini splits are distributed worldwide.

Fujitsu offers mini split systems that will work in up to eight rooms. These multi-split air conditioning systems can pair, ceiling cassettes or wall mount units with a single outdoor unit. Most Fujitsu air conditioners are made in either China or Thailand.

Senville

Senville is a Canadian company that is headquartered in Montreal. They have locations on both the East and West coasts in the United States. One of the things that people consistently compliment Senville on is how fast they ship out their mini split units. They are also known for having excellent customer service. It should be noted that while Senville is a North American company, all of their mini splits are manufactured in China.

Carrier Air Conditioning

Carrier is one of the most well known air conditioner manufacturers in the US. They are the oldest A/C company in the world because their founder, William Carrier, invented air conditioning! That was way back in 1902 but they are still going strong.

Lennox Mini Split Ms8 User Manual

Mini split systems are a fairly new product for Carrier. They traditionally produced ducted A/C systems but have recently started manufacturing mini split systems. When you goto the official Carrier website you won’t find any listings for mini splits, however. Carrier exclusively refers to mini split systems by their proper name, Ductless Systems.

Daikin

Daikin is one of the more recognizable names on this list of mini split manufacturers. They are arguably the largest air conditioning manufacturer in the world.

Daikin was founded in Japan in 1951. Since then they have expanded their operations to over 140 countries. They produce a wide variety of air conditioning systems including: mini splits, forced air systems, commercial, and industrial A/C.

Gree

Gree has been a mini split manufacturer for over 20 years. They are a Chinese company with a global presence and probably the largest ductless system manufacturer in the world.

Innova

Innova is an Italian A/C manufacturer that was founded in 2004. One of the key fundamental values at Innova is environmental friendliness. Their founder started the company to help make a positive impact on the environment.

One of the coolest things about Innova is that they actually manufacer their own mini splits at their factory in Storo, Italy. The vast majority of mini split manufacturers on this list are either based or manufactured in Asia.

Innova is really on the cutting edge of ductless technology. They recently introduced their Air Conditioner 2.0 which claims work without needing an onside unit!

MrCool

MrCool is one of the fastest growing brands on our ultimate list of mini split manufacturers. They have really captured the hearts (and wallets) of the DIY crowd. They even recently introudced a mini split unit that is designed for the homeowner to install. This is the very fist mini split company to manufacture an A/C that doesn’t require professional installation. That means that the warranty still applies even for installations by non-licensed people.

Ideal-Air

Ideal-Air is an American company based outside Portland, OR. They have a fairly large dealer network across the USA. One of the benefits of purchasing a mini split from Ideal-Air is the US Based support that they offer. They claim to offer “best-in-class” customer support.

Ideal-Air sells both wall-mount and ceiling cassette units. Their largest ductless A/C is 48,000 BTU. Ideal-Air is a unique company because they don’t offer any traditional ducted systems. Even their commercial line is ductless.

Klimaire

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Blueridge
Comfort-aire
LG
Friedrich
DuctlessAire
Ramsond
Panasonic
Hessaire
Kingsfin
Daizuki
Air-Con
Kaussmann
Amira
Classic America
Frigidaire
Sharp
YMGI
Cooper and Hunter
SuperAir
Rheem
Celiera
Perfect Aire

The tables below contain the lists of possible breakdowns which may happen with Lennox heat pumps of different modifications. In case of Lennox heat pump not working you should address these checklists.

There are types of faults and problems with detailed descriptions, possible causes and solutions which may be recommended in the certain situations. If you feel the temperature in your house is getting higher, it may be because of heat pump fan not spinning, and therefore, heat pump not cooling. The information given below can be helpful for you then.

Lennox 2SHP13 Heat Pump Troubleshooting

Green LED (DS2)	Red LED (DS1)	Mode
Off	Off	No Power to Board
Simultaneous Slow Flash	Simultaneous Slow Flash	Normal Operation/ Power to Board
Alternating Slow Flash	Alternating Slow Flash	Anti-Short Cycle Lockout
Off	Slow Flash	Low Pressure Switch Fault
Off	On	Low Pressure Switch Lockout
Slow Flash	Off	High Pressure Switch Fault
On	Off	High Pressure Switch Lockout

Lennox MS8 Heat Pump Troubleshooting

Problem	Possible Cause
Unit does not operate immediately when restarted.	Unit control initiates a 3-minute delay at the end of each cycle to protect the compressor from damage.
A whoosh or gurgling noise can be heard at the indoor unit.	Sometimes, the refrigerant can be heard in the indoor coil when the outdoor unit starts or stops operation. This is not a malfunction.
Mist is coming out of the indoor unit during cooling operation.	This sometimes happens when the indoor temperature and humidity are very high and the air is being cooled quickly. The mist will disappear as the indoor temperature and humidity are lowered.
A creaking or popping noise can be heard when the unit starts or stops.	The plastic components of the indoor units sometimes expand and con- tract when they are heated and cooled.
Unit is not operating.	Are the TIMER ON and TIMER OFF features being used incorrectly?
Is power disconnected or has circuit breaker tripped.
Is power shut down?
System is not cooling (or heating) efficiently.	Is temperature setting correct?
Are either the air inlet or air outlet blocked on the outdoor or indoor unit?
Is filter dirty?
Is fan at low speed?
Are windows and doors properly shut?
Wireless remote is not working.	Is remote in direct line of sight with indoor unit infrared receiver? Has the remote been damaged?
Remove remote control batteries for 30 seconds, then reinsert them. Replace batteries, if necessary.
Water is leaking from indoor unit.	Indoor humidity level is very high and water is being blown from indoor coil. This will stop as humidity level is reduced.
Water is leaking from condensate line at Water is leaking from condensate line at indoor unit.indoor unit.	Check condensate line outside to make sure it is not obstructed.
Check condensate line to make sure it has not been disconnected from indoor unit.
Water is leaking from the outdoor unit.	During operation in high-humidity areas, condensate will form on cold outdoor refrigerant pipes.
When heat pump is operating in defrost mode, ice will thaw from around outdoor coil and water will flow from the unit.
Clicking noise heard inside.	Sometimes, the sound of the outdoor unit fan or compressor relay can be transmitted in a way that makes it seem to be coming from the indoor unit.
Indoor fan is not working.	Heat pump units - In HEAT mode, a timed delay keeps indoor fan off for two minutes to prevent unheated air from being circulated by the indoor fan.
Heat pump units - In HEAT mode, cold outdoor temperatures and high humidity cause frost to accumulate on the outdoor unit. When this hap- pens, the unit will enter a defrost cycle. The indoor fan is off during the 3 -12 minute cycle.
In DEHUMIDIFICATION mode, indoor fan operation may be stopped to avoid delivery of moist air to the room. Do not adjust temperature set- ting.

Lennox XPG20 Heat Pump Troubleshooting

Green	Red	Code	Cause	Solution
OFF	OFF	Power problem	No power (24V) to board terminals R & C or board failure.	Check control transformer power (24V).
If power is available to board and LED(s) do not light, replace board.
Simultaneous SLOW Flash	Simultaneous SLOW Flash	Normal operation	Unit operating normally or in standby mode.	None required.
Alternating SLOW Flash	Alternating SLOW Flash	5-minute anti-short cycle delay	Initial power up, safety trip, end of room thermostat demand.	None required (Jumper TEST pins to override)
Simultaneous FAST Flash	Simultaneous FAST Flash	Ambient Sensor Problem	Sensor being detected open or shorted or out of temperature range. Board will re- vert to time/ temperature defrost operation. (System will still heat or cool).
Alternating FAST Flash	Alternating FAST Flash	Coil Sensor Problem	Sensor being detected open or shorted or out of temperature range. Board will not perform demand or time/ temperature defrost operation. (System will still heat or cool).
ON	ON	Circuit Board Failure	Indicates that board has internal component failure. Cycle 24 volt power to board. If code does not clear, replace board.
OFF	SLOW Flash	Low Pressure Fault	Restricted air flow over indoor or outdoor coil.	Remove any blockages or restrictions from coils and/or fans. Check indoor and outdoor fan motor for proper current draws.
OFF	ON	Low Pressure LOCKOUT	Improper refrigerant charge in system	Check system charge using approach & sub- cooling temperatures.
SLOW Flash	OFF	High Pressure Fault	Improper metering device installed or incorrect operation of metering device	Check system operating pressures and compare to unit charging charts.
ON	OFF	High Pressure LOCKOUT	Incorrect or improper sensor location or connection to system.	Make sure all pressure switches and sensors have secure connections to system to prevent refrigerant leaks or errors in pressure and temperature measurements.
SLOW Flash	ON	Discharge Line Temperature Fault	This code detects shorted sensor or high discharge temperatures. If the discharge line temperature exceeds a temperature of 285°F (140°C) during compressor operation, the board will de-energize the compressor contactor output (and the de- frost output if active). The compressor will remain off until the discharge temperature has dropped below 225°F (107°C).
FAST Flash	ON	Discharge Line Temperature LOCKOUT
OFF	Fast Flash	Discharge Sensor Fault	The board detects open sensor or out of temperature sensor range. This fault is detected by allowing the unit to run for 90 seconds before checking sensor resistance. If the sensor resistance is not within range after 90 seconds, the board will count one fault. After 5 faults, the board will lockout.
Fast Flash	OFF	Discharge Sensor LOCKOUT

Lennox Mini Split Ms8 User Manual Pdf

Lennox FCM 85 Heat Pump Troubleshooting

STAGE	NORMAL OPERATION	POSSIBLE FAULT	ACTION	POSSIBLE SOLUTION
Heating Requested	Extraction fans start	Fault on the Blower thermostat	+ Check connections on the blower thermostat.	+ Replace thermostat
Lack of gas supply	+ Check valve’s opening & supply pressure	+ Restore gas supply
Fault on the superheat thermostat on the gas burner support bar	+ Check superheat thermostat’s operation after manual reset	+ Replace superheat thermostat
Starting of the extraction fans	Extraction Fans are running	After 10 seconds safety shutdown by the ignition control block	+ Check connections of the control block on the gas valve	+ Repositioning of the control block on the valve + Replace valve
Nothing happens	+ Check the free movement of the fan wheel + Check Electrical connection on the Gas Ignition Control Block and on EF connection Board	+ Replace fan + Replace EF connection board If necessary
+ Check the Fan supply voltage
Extraction Fan is ON	After 30 to 45 seconds: pre- ventilation the fire-up electrode should spark.	Continuous Ventilation without sparks from fire-up electrode	+ Check the fire-up electrode + Check the pressure drop at the pressure switch: It must be higher than 165 Pa +Check the good operation of the pressure switch using an Ohmmeter and by artificially creating a depression in the tube.	+ Re-position the pressure switch tube.
+ Change the pressure switch.
Continuous ventilation and sparks from fire up electrode.	After a few seconds the gas burner fires-up	After 4 seconds the GAS Burner still not operating and safety shutdown by the Ignition Control Block.	+ Check injection pressure during start-up (Value for High Heat)	+ Remove the air from the Gas pipe-work + Adjust the injection pressure to high heat value.
+Remove the control box from the gas block.	+ Change the Control Box if the Gas valve is OK.
Within 4 seconds the gas Burner fires-up BUT safety shutdown from the Ignition Control Block.	+ Check the Position and connection of the Ionization Probe. It must not be Earthed (230V).	+Check the whole electrical supply.
+ Measure the Ionization Current: It must be higher than 1.5 microAmps.	+ Adjust the supply and injection pressure if gas is different from natural gas G20
+ Check the Type of GAS.

Lennox Mini Split Ms8 User Manual Free

Lennox XP15 Heat Pump Troubleshooting

Lennox Mini Split Ms8 User Manually

Status LED Condition	Status LED Description	Status LED Troubleshooting Information
Green Power LED ON	LSOM has power	24VAC control power is present at the LSOM terminal.
Green Power LED OFF	LSOM not powering up	Determine/verify that both R and C LSOM terminals are connected and voltage is present at both terminals
Red Trip LED ON	System and compressor check out OK	1 Verify Y terminal is connected to 24VAC at contactor coil.
2 Verify voltage at contactor coil falls below 0.5VAC when off
3 Verify 24VAC is present across Y and C when thermostat demand signal is present: if not present. R and C wires are reversed.
Thermostat demand signal Y1 is present, but compressor not running NOTE - During 5-minute delay in LSOM the red trip LED will be on.	1 Compressor protector is open.
2 Outdoor unit power disconnect is open.
3 Compressor circuit breaker or fuse(s) is open.
4 Broken wire or connector is not making contact.
5 Low pressure switch open if present in the system.
6 Compressor contactor has failed to close
Red Trip and Yellow Alert LEDs Flashing	Simultaneous flashing.	Indicates that the control circuit voltage is too low for operation
Yellow Alert Flash Code 1	Long Run Time - Compressor is running extremely long run cycles	1 Low refrigerant charge.
2 Evaporator blower is not running.
3 Evaporator coil is frozen.
4 Faulty metering device
5 Condenser coil is dirty
6 Liquid line restriction (filter drier blocked if present)-
7 Thermostat is malfunctioning
Yellow Alert Flash Code 2	System Pressure Trip - Discharge or vapor pressure out of limits or compressor overloaded	1 Check high head pressure or discharge line sensor.
2 Condenser coil poor air circulation (dirty, blocked, damaged)
3 Condenser fan is not running.
4 Return air duct has substantial leakage.
5 If low pressure switch is present, see Flash Code 1 information.
Yellow Alert Flash Code 3	Short Cycling - Compressor is running only briefly	1 Thermostat demand signal is intermittent.
2 Time delay relay or DCB is defective.
3 If high pressure switch is present, see Flash Code 2 information
4 If low pressure switch is present, see Flash Code 2 information
Yellow Alert Flash Code 4	Locked Rotor	1 Run capacitor has failed.
2 Low line voltage (contact utility if voltage at disconnect is low).
3 Excessive liquid refrigerant in the compressor.
4 Compressor bearings are seized.
Yellow Alert Flash Code 5	Open Circuit	1 Outdoor unit power disconnect is open.
2 Unit circuit breaker or fuse(s) is open.
3 Unit contactor has failed to close.
4 High pressure switch is open and requires manual reset.
5 Open circuit in compressor supply wiring or connections.
6 Unusually long compressor protector reset time duo to extreme ambient temperature.
7 Compressor windings are damaged
Yellow Alert Flash Code 6	Open Start Circuit - Cur- rent only in run circuit	1 Run capacitor has failed.
2 Open circuit in compressor start wiring or connections.
3 Compressor start winding is damaged
Yellow Alert Flash Code 7	Open Run Circuit - Current only in start circuit	1 Open circuit in compressor start wiring or connections
2 Compressor start winding is damaged
Yellow Alert Flash Code 8	Welded Contactor - Compressor always runs	1 Compressor contactor failed to open
2 Thermostat demand signal not connected to LSOM
Yellow Alert Flash Code 9	Low Voltage - Control circuit <17 VAC	1 Control circuit transformer is overloaded.
2 Low line voltage (contact utility if voltage at disconnect is low).