Question about Mitsubishi Mr. Slim MXZ30TN Air Conditioner

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My rc aircon when set to heating cannot sustain the heat & cuts off before it reaches the selected room temp, THe cooling works OK still. Is it the thermostat or something else

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Check the evaporator coil and make sure it is clear of all dust and debris. run the t stat up to the highest setting and see if the heat cuts off then.

Posted on Aug 27, 2010

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Posted on Jan 02, 2017

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I have a 1996 2.2 renault laguna and my heating keeps cutting out


On a car that old the most likely thing is the heater matrix is blocked and needs replacing, you can't clean them.
If the engine is reaching normal running temp then reach down the back at where 2 hoses run through the bulkhead. Check them for heat. If hot then change the matrix.
If you have aircon then as a past laguna owner I can tell you its a really bad task. There's no room at all.
Sorry.

Feb 16, 2016 | Renault Cars & Trucks

1 Answer

Why does the unit keep on switching off after running for 2 minutes


Do not know what brand or model your aircon unit is? Sounds as if the temperature you want your unit to run at has already been reached. You need to follow these steps:
- select the temperature you want
- select the icicle icon for cool or thermometer icon for hot.
- select "auto" for your unit to cut in, or to cut off to keep your desired room temp.
For example - hot day 26 degrees and you want the temp in the room to drop to 19 degrees - the unit will shut off once it reaches 19 degrees if it is set to "Auto". Hope this gives you some clues to get it working. Please tick my this helped me box if my tips work. Good luck Gerri.

Nov 27, 2015 | Heating & Cooling

2 Answers

Is it normal for my furnace to have burner cycle once or twice


That sounds normal. When the bonnet reaches a preset temperature the burner turns off then when it cools down a bit the burner turns back on. Clean filters etc will help to keep the burner on longer in a cycle.

Aug 24, 2014 | Heating & Cooling

1 Answer

Wiring honeywell th8320u1008


Be sure you are looking at the letters set up for heat pump. Orange should be "O". Remove jumper between w2 and e. Then be sure you have the settings correct in the tstat for a heat pump with back up heat. Good Luck!!

Mar 28, 2017 | Heating & Cooling

1 Answer

The ac is not working properly. It goes from cold air, to hot air. I charged the ac with R134 coolant, but is not helping. What is the problem?


If your unit is cooling and heating ok make sure the mode your on is not an automatic mode as this makes the unit change between heating and cooling to maintain set temp select either cooling only mode or heating only mode this means once set temp is reached unit will stop until it notices a rise or drop in temp and will come on again in your set mode

Jul 03, 2011 | Heating & Cooling

2 Answers

I had the aircon thermostat on cold then my friend just transfered it to warm without turning the aircon off because it was too cold. in the afternoon when i tried to use the aircon theremostat to...


Problem is the thermostat.The heat/cool selector switch might not be making try back and fourth from heat/cool to make a good contact.In heat mode make sure the temp is set LOWER than your cooling temp.If it is too cold in the future just RAISE the cooling temp up and not the heat/cool switch.

Jun 04, 2011 | Heating & Cooling

1 Answer

My Trane thermostat (TCONT600AF11MAA) is supposed to have 1.5 degrees of heat pump "rest" above the desired setting before turning on the heat pump. The thermometer reading does not change yet...


Friend! All thermostat is calibrated to cut in and cut off at the end of - or + 1 degree end.
Example: If you set 23 degree, it will cut off in 21 degree and cut in @25 degree. So accordingly you set the temp.
Secondly, don't set temp near to your room temp.Minimum difference should be 3 degree. If your room temp 12 degree, set at least 15 degree for heat and if room temp 28, set at least 25 degree for cool.
Hope it's helpful?

Jan 02, 2011 | Heating & Cooling

1 Answer

I want to put room temp on 30c but the default 24c


If you want the room at thirty C, it would appear you want the aircon to heat. To do this it would need to be a heatpump model which is capable of heating. If this is true, then it is a matter of changing the mode setting from cooling (default 24) to heating which would default at 30. Hope this helps. Look for a button with three or four icons, one should resemble an ice crystal (cooling) another should look like a radiating sun.

Jun 09, 2009 | LG Heating & Cooling

1 Answer

Installed a honeywell rth7500 series thermostate, no air


Heat/cool wires crossed. RC- is red cool make sure the batteries are good and room temp is higher than cool setting. good luck

May 29, 2009 | Honeywell Electronic Programmable...

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