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-   -   Frig and freezer (https://www.forestriverforums.com/forums/f113/frig-and-freezer-28653.html)

B47 09-04-2012 06:14 PM

Quote:

Originally Posted by herk7769 (Post 247469)
No idea. What is the make and model? I will look it up.

The book I keep all that information in is in the RV at the storage facility. I will get it and let you know.

There has to be some connection between the cold setting button and the thernistor IMO.

Thanks

Herk7769 09-04-2012 06:36 PM

1 Attachment(s)
Here is the latest Dometic Manual.

It shows temperature "lights" but not buttons.

I will keep looking.

B47 09-04-2012 08:47 PM

Quote:

Originally Posted by herk7769 (Post 247480)
Here is the latest Dometic Manual.

It shows temperature "lights" but not buttons.

I will keep looking.

Herk - don't spend anymore of your time on this. Ours does have the lights and I guess they simply tell how cold the frig is at any one time.

The manual doesn't say anything about the thermsistor, just a thermostat.

Thanks again.

Herk7769 09-04-2012 09:03 PM

Quote:

Originally Posted by B47 (Post 247555)
Herk - don't spend anymore of your time on this. Ours does have the lights and I guess they simply tell how cold the frig is at any one time.

The manual doesn't say anything about the thermsistor, just a thermostat.

Thanks again.

The thermistor is the thermostat. It varies the resistance of the circuit based on its temperature. At a pre-selected resistance the fridge turns on the heat. Sliding the thing up and down causes that resistance to be met sooner or later; thereby selecting the temperature to be maintained.

Think of a mercury switch in an old style thermostat. As the temperature rises the mercury expands and tilts the spring loaded glass vial over and closes contacts that route power to the heater or air conditioner. Sliding a lever adjusts the tilt one way or the other making that "topple" occur sooner or later.

B47 09-04-2012 09:13 PM

Quote:

Originally Posted by herk7769 (Post 247565)
The thermistor is the thermostat. It varies the resistance of the circuit based on its temperature. At a pre-selected resistance the fridge turns on the heat. Sliding the thing up and down causes that resistance to be met sooner or later; thereby selecting the temperature to be maintained.

Think of a mercury switch in an old style thermostat. As the temperature rises the mercury expands and tilts the spring loaded glass vial over and closes contacts that route power to the heater or air conditioner. Sliding a lever adjusts the tilt one way or the other making that "topple" occur sooner or later.


That is the reasoning I said in my #19 post. I bet I am not the only reader here that didn't know what a thermistor was until reading here today.

The manual could show a picture of the thermistor in the section where it speaks about adjusting the temperature.


Some of these manuals you get - but that is another subject entirely (read my rand about the outdoor kitchen refrig thermostat location sometime and you will see what I am talking about).:(

Thanks -

tntrac 09-27-2012 08:39 PM

If I parked the truck (truck is turned off) on the street and have the propane on and the frig is using propane, will the frig draw a lot of juice from the 12v battery on the trailer?

VinceU 09-27-2012 09:13 PM

Quote:

Originally Posted by tntrac (Post 257883)
If I parked the truck (truck is turned off) on the street and have the propane on and the frig is using propane, will the frig draw a lot of juice from the 12v battery on the trailer?

No, the fridge doesn't use much DC, however with the battery turned on other parasitic loads will be connected. Usually most can last a few days without charger on.


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