Question about Mitsubishi Diamond WD-65831 65" Projection HDTV

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Says room temp to high. temp is 68. A bad temp sensor?

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Likely or a bad fan inside ether way there two of the same as there cooling elements the tv might be overheated due to a fan or ventalation inside or just a bad sensor.

Posted on Sep 23, 2009

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Posted on Jan 02, 2017

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WHY DOES MY FURNACE SHUT OFF BEFORE REACHING TEMP


Hi Demetrio
Furnaces turn on and off based on what they're told by your thermostat. The thermostat, in turn, will control the furnace based on:
  1. The temperature AT the thermostat.
  2. What the internal heat sensor thinks the temperature of the air is.
So, if your idea of 68 degrees is what the thermostat thinks is 71 degrees (thermostat reads three degrees high), then when the air by the thermostat gets to about 65 degrees (by your account), it'll think it's 68 degrees and shut the furnace off.

Also, if the thermostat is, say, near a source of local heat, like a lamp, a big piece of electronics, a fireplace, or that place that you habitually set down your coffee, then the air right next to the thermostat may be warmer than the rest of the room, and fool it into thinking it's at it's target.

The sensor is usually inside the housing for the thermostat. If it hasn't been dusted in a while, then it can be hard for air to get inside to affect the sensor, though this would generally cause it to lag on readouts and run the temperature higher than you wanted.

If you have a digital readout, and the system is saying , hey, target is 68, and the readout gets to 66 and the system cuts off the furnace.... my only other guess is that the unit may have features that are trying to prevent overshoot - i.e. by the time the temp at the thermostat actually gets to 68, most of the room is more like 73. That'd depend on your particular thermostat. At that point, you may want to call customer service with the manufacturer and tell them the issue. There may be ways to adjust the unit to get behavior closer to what you seek.

Good Luck!

DH

Jan 25, 2016 | Heating & Cooling

2 Answers

Heater temp is 78 the water temp 68 how do I reset heater temp to match pool temp.


Sounds like a faulty temp sensor. Check it for debris, clean it good and see if that does it. If not try replacing it.

Jun 02, 2015 | Pool & Spa

1 Answer

Remote is inaccurate


did you change the batteries ?

Dec 07, 2013 | Mitsubishi Heating & Cooling

1 Answer

Mr.Steamer Commercial Steambath CU750A temp is to high it is out of control


There are only 3 likely causes. The first and most likely is the room sensor inside the shower. This is a resistive type sensor that communicates the temperature in the room to the controller via ohm ratings. There is an equivalent ohm rating for every degree of temperature it correlates to and that is how the temperature controller knows what temp it is in the room. Often in commercial steam rooms clients tend to spray cold water on the sensor which causes damage and alters the ohm rating to the point where the sensor is relaying incorrect room temps to the controller, causing high or low temperatures. Normally when the room is hot, it causes the alloy metal of the sensor to be hot. When cold water is sprayed on it, it immediately bring down the temp of the alloy and the thermal shock warps the metal causing the resistance values to change. Set your multi-meter to ohms and remove the sensor wires from the back of the controller. You will do your ohm reading on the sensor wires. Check the actual room temperature with a thermometer. At room temp 77 degrees you should be getting 10,000 ohms, at 100 degrees you should get 5827 ohms, and at 120 degrees you should get 3759 ohms. Note as the temp goes up the ohms go down, this should help you determine if your sensor is good. The other possibility is your steam solenoid valve is stuck in the open position. Simply check if there is voltage running to the solenoid. If there is no voltage but the room is filling with steam your solenoid is stuck open and needs to be replaced. The last is the controller, and by process of elimination if the sensor and steam solenoid are good then the controller may be the issue.

Feb 02, 2012 | Mr Steam Mr. Steam Commercial Steambath...

3 Answers

My GE Profile electric oven keeps shutting off on me, it shows a "F3" code on the screen. What does this mean?


Sorry to read about your problem, I hope this helps you out.

your F3 means: Oven temperature sensor open you cannot reset this type of problem.

Check oven temperature sensor, should be ~1100 ohms at room temperature. If too high or low, replace oven temperature sensor

I tried to help you. Please help me and Rate/Vote on my response. We take the time to answer your question. take the time to rate us.Thanks and good luck

Jan 02, 2011 | GE Profile JTP18 Electric Single Oven

1 Answer

I have a Rinnai 556F Heater and I set it to a specific Temperature and a temperature higher is always flashing. What is wrong?


The temp you are looking at may be an error code. 72 Room sensor, 68 Over heat, 76.80 Room sensor short, etc. What is the exact code??

Tom

Oct 14, 2010 | Rinnai RHFE-556FAIII 21,500 BTU Ductless...

1 Answer

Heater shuts off as soon as the room is warm


I take it once the temp is set to 71, and the ambient temp reaches 68 or so, it shuts off, never to come on again?

If that is true the thermostat in the unit is damaged, worn out or in need or replacement, but try a couple tricks.

First, if there are access panels to clean, clean it per the manual, it could be that a dirty filter or air inlet is confusing the thermostat.

Next, unplug the unit for at least 5 minutes, try it again.

Next set the unit on it's highest temp and blower setting, let it rip for 20 minutes, shut it down, unplug and remain unplugged for 5 minutes.

Next set the unit at 71 HIGH MODE.

see if we have a mode switch problem or thermostat if it works on high mode, it is not the thermostat, but I imagine it is, but I am curious as to if it once goes off, it never again comes back on?

Will

Dec 01, 2008 | Bionaire BCH-4138 Ceramic Compact Heater

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