Fridge thermostat problem.

[Hoolie]

I'm reluctant to use one of these electronic gizmos because at 3W they use about 0.25 amp continuously. That's 10% of the current used by the fridge when it's running. But if the fridge is only on, say, a third of the time then the device is taking around 30% of the amp/hours of the fridge!

Nice to have but I'm sticking with a mechanical thermostat!

 

[sailaboutvic]

I'm reluctant to use one of these electronic gizmos because at 3W they use about 0.25 amp continuously. That's 10% of the current used by the fridge when it's running. But if the fridge is only on, say, a third of the time then the device is taking around 30% of the amp/hours of the fridge!

Nice to have but I'm sticking with a mechanical thermostat!

The point here is the OP can't get his fridge to work on a mechanical thermostat firstly
second the 20ma that they use will save the OP x amount of amps his useing now with a Mechancal thermostat , not only is the fridge running much more then need be but still he has no contro over the temperature.
But lastly when as we do have 500AH batteries bank 20ma is not going to make any different one way or another .
If you had one battery of 100AH maybe then it would , but then you wouldn't be on the boat long enough to have the fridge running that long any way ,

 

[Mistroma]

Mike still got your old one , I save it to a see you again as at last I got the type that does both , on and odd at set temp

Thanks for that Vic, glad you got a more permanent solution. Just hang on to it as a spare. I'd bought it to control MPPT temp. via fan and a second one as emergency spare for fridge. I've never needed to MPPT fan and found my 2nd one a few days after we met so still have it as a spare.

One you now have looks good (even with Chinese labels). Version I bought on eBay worked wonders for our old 24V fridge at home (prob. 25 years old). We are heading towards Kythnos in a few days so might run into you in Cyclades. Drop in for a beer if you see us.

You are correct about 20mA, it isn't going to take much of an improvement to save approx. 0.5Ah per day. Temperature usually varies quite a lot with most mechanical thermostats and you end up having it too low so that it's OK during the spikes. Anyway, it's better for food in fridge not to be at a high temp. longer even if you save nothing in power.

 

[sailaboutvic]

Thanks for that Vic, glad you got a more permanent solution. Just hang on to it as a spare. I'd bought it to control MPPT temp. via fan and a second one as emergency spare for fridge. I've never needed to MPPT fan and found my 2nd one a few days after we met so still have it as a spare.

One you now have looks good (even with Chinese labels). Version I bought on eBay worked wonders for our old 24V fridge at home (prob. 25 years old). We are heading towards Kythnos in a few days so might run into you in Cyclades. Drop in for a beer if you see us.

You are correct about 20mA, it isn't going to take much of an improvement to save approx. 0.5Ah per day. Temperature usually varies quite a lot with most mechanical thermostats and you end up having it too low so that it's OK during the spikes. Anyway, it's better for food in fridge not to be at a high temp. longer even if you save nothing in power.

Mike we on Mikonos , we was hoping to move to day West forecaster was or a nice NW4 to5 instead its more like tops of 6 gusting well into 7 and all that can be seen out of the bay is BIG white horses haha . hoping to morrow will be better , next stop Syros