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I have a ramsond ductless mini split model 55GW2 the heat will not come on inside. the indoor unit shuts off when I switch to heat mode but I can hear the fan running outside on the condenser.

They say there is a dip switch in the battery compartment on the remote, but there is not.

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No power at interior unit. power everywhere else

If this is a mini split ductless there is a control wire with 3-4 wires inside (normally red, white, blue and green) that is connected from the outdoor unit to the indoor unit. This wire feeds voltage from the o.d. unit to the I.d. unit. If all connections at the o.d. unit are good, then check for voltage at these connections at the o.d. unit. If no power at these connections then a circuit board has faulted. Call a tech. and have a tech support number ready (1-800#) in case your service tech don't have it.

May 12, 2015 | Sanyo KHS0971 9,000 BTU Ductless...

1 Answer

How close to the ceiling can the inside head be

Hello, try at least, 2 inches, because the interior unit takes air from upside.

Sep 16, 2014 | Ramsond 18,000 BTU 1.5 Ton Ductless Mini...

1 Answer

My indoor lg mini split unit the cool light flashes 4 time what's wrong

Indoor unit faults = CH04 or C4
Fascia LED's
- RED = None
- GREEN = 4 Flash
Contents = Drain Pump / Float Switch
Case of Error = Float Switch Open Circuit (High Level Water Alarm)
Indoor Status = Off

clean your condensate drain line you can do this with a shop vac,
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May 26, 2014 | LG LMN127HVT LMN127HVT 12 000 BTU Ductless...

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Leaking water from the inside unit

When the air gets cooled it also gets dehumidified, on the inside unit there should be a condensate drain. Check the drain to see if its clogged, also check to see there is a drain, I have seen units installed by "pros" who have forgot to intall it

Apr 14, 2014 | Ramsond 12,500 BTU 1 Ton Ductless Mini...

1 Answer

Newly installed, the outside unit will not run but the fan on inside will run

checkto see if your getting 24voltsat the condensers control wire and chech for power voltage

Jan 08, 2013 | Ramsond 12,500 BTU 1 Ton Ductless Mini...

2 Answers

I have a Mitsubishi heat pump that runs well but the outdoor unit does not defrost what could be the problem.

Why does my heat pump ice up in Winter?
Heat pumps naturally ice-up in the winter. It is normal for the entire coil to be covered in a white frost and even light ice, during cold weather conditions. However, it is bad for the entire unit to be encased in ice. This indicates ductless heat pump problems which should be addressed quickly to save energy and avoid serious damage to your ductless unit. These systems should periodically go into a defrost cycle. This keeps the unit running efficiently. If the coils are blocked by ice, proper heat transfer between the coil and the outside air will not occur.
How does the defrost mode work?
When the mini split heat pump goes into defrost, the reversing valve inside of the outdoor unit is energized, switching the system from heat to the air conditioning mode. The outdoor coil becomes the hot, the indoor coil becomes cold, and both - the outdoor and indoor fans shut off. This allows the outdoor coil to melt accumulated ice. When the built-in micro-computer analyzes that all ice have been melted, the heat pump heating system goes back to heating mode.
sanyo-mini-split-defrost.pngA cloud of water vapor may be seen rising over the outdoor unit and a "whoosh" sound can be heard as the refrigerant reverses direction. The entire process usually takes up to 10 minutes (depending on conditions).
How often does the system goes into defrost mode?
Ductless mini-split heat pumps have different ways of determining when to go into defrost. The built-in microcomputer determines outdoor temperature, refrigerant pressures, and several other factors. In colder temperatures the system will go into defrost more often than in warmer.
If a ductless mini split heat pump is severely iced-up in the winter it is possible that it isn't defrosting (though there could be many other causes). Let the manufacturer certified technician check your system

Oct 29, 2011 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer


The expansion valve or the capillar tubes are inside the condenser and the gas (freon) is already expanded right outside the condensing unit all the way to the evaporator and beacause the diferential of temperature between this copper line (which is not high pressure anymore) and the outdoor air , there's condensention that freezes up.

Oct 15, 2009 | GE Quiet-Aire Ductless Split System Air...

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I am concerned the wiring diagram provided for a Ramsond 12000 btu split system 240 volt is wrong. (1 2 3 N L L N) I assumed the L's were slots for the hot legs.

Those terminals on a ductless split are reserved for the communication wires from the out door to indoor unit. L L N should be line 1, line 2, and neutral (ground) there should be a 1 2 3 N terminal block in the indoor unit also, those terminals would most likely be for the communication between the two units.

May 17, 2009 | GE Quiet-Aire Ductless Split System Air...

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