Tip & How-To about Refrigerators

Highly Efficient Refrigerators

AS A WARNING TO SHOPPERS!!!!!!! You should stay away from high efficiency refrigerators!! They gain that efficiency by reducing the cooling capacity. That means the tiny compressors run more of the time, thus shortening their lifespan. Also, the walls of heat exchanges are much thinner, leading to leaks and clogs. Ask any fridge repairman. All this leads to breakdowns after only a few years of service, because they are so fragile. Buy a home warranty if your fridge is one of these and is approaching 5 years old. Or at least warrant that machine. Been there. Done that. Twice.

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I have an LG French door refrigerator Model LFX28978 ST/00. I noticed that there is ice in the ice tray but it is not dumping it.I turned it off and on and it moves freely, but does not dump the ice.


Sorry to tell you that LG makes the worst refrigerators of all time. The control panels have CONSTANT problems. I suggest you buy a home warranty that covers refrigerators.I had the big 31 CF Kenmore (made by LG). Sears came out THIRTEEN times trying fix it. They replaced the coils twice, the control panel twice and the refrigerant-line fluid filter 3 times. Finally they gave me $1000 to throw it away.
AS A WARNING TO SHOPPERS!!!!!!! You should stay away from high efficiency refrigerators!! They gain that efficiency by reducing the cooling capacity. The walls of heat exchanges are much thinner, leading to leaks. Ask any fridge repairman. All this leads to breakdowns after only a few years of service, because they are so fragile..

May 15, 2017 | LG Refrigerators

1 Answer

Lincoln MKT - air conditioner won't stay cold


It could be any of a number of things:

  • Low refrigerant. An A/C system requires a certain amount of refrigerant to cool properly. If low, it works less efficiently and does not cool well.
  • Dirty condenser -- The condenser is the heat exchanger mounted in front of the radiator. It cools the high pressure refrigerant vapor after it exits the compressor so it can condense into a liquid. If the condenser is full of leaves, bugs and road debris, air flow through the unit may be blocked to the point where little cooling occurs. Cleaning the condenser should cure the problem.
  • Inoperative condenser cooling fan. The condenser often has its own separate electric cooling fan. This fan should come on and remain on when the A/C system is operating. If the fan motor, motor relay or wiring is defective, the fan may not be working.
  • Air or moisture contamination -- For the refrigerant inside the system to do its job properly, it must not be contaminated with air or moisture. Air reduces the cooling efficiency of the system while moisture can freeze and form ice that causes blockages in orifice tubes and metering valves. Air and moisture contamination may be the result of unrepaired leaks in the system, or failing to vacuum purge the system prior to recharging it with refrigerant.
  • Blockages -- Debris, rust or debris in the system may plug up the orifice tube or metering valve that admits refrigerant into the evaporator. If this vital point becomes obstructed, the flow of refrigerant may be restricted or blocked causing a loss of cooling -- and possible compressor damage as well in systems that rely on oil circulating with the refrigerant for lubrication.
  • Mechanical problem -- These include things like metering valve failures, compressor wear, a compressor clutch that fails to engage, bad pressure switches, etc.
  • Jul 16, 2011 | Air Conditioning and Heat for Lincoln MKT

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