Fridgemate MK1 to run serving fridge?

[CoopsOz]

A couple of months back I bought a Fridgemate MK1 off a member to run my keg fridge. I finally got some time to set it up with the intent to set my serving fridge at a constant 4 degrees.

I have run into a problem and hopefully somebody here can assist. The issue I'm having is I can set my min temp to 4 deg but I can't get my max temp down below 19 deg, the unit simply does not seem to go that low on F3. I would have thought I would set min to 4, max to 5 with a differential of 1. Are these things only designed for fermentation fridges? I have an STC running my ferment fridge so I might have to swap them around.
Cheers.

 

[bum]

I get my fridge down below your target temps with a FridgeMate when I CC. Do you have F4 set to 2 by any chance? Needs to be 1 for cooling.

 

[CoopsOz]

Thanks for the suggestion bum, I just double checked and F4 is at 1. What are your settings? Maybe I have my differential or compressor timer all out of whack.

 

[bum]

F0 is 1 and F1 is 9 (which I believe are the recommended settings - I wouldn't have drifted far from those).

I wonder if you could PM that member and see if they recall any irregularities with that unit? Sounds like you've got it set up okay to me.

 

[CoopsOz]

After fekking around with it all day, I'm convinced the unit is cactus. If I set it up in heating mode, the relay immediately closes and the fridge stays on indefinitely. As soon as I set it to cooling mode (and wait the timeout period), absolutely nothing happens. The guy I bought it off was using it as his fermenter controller so would never have known it was a dud.

Looks like I'll be waiting a month to get my self another STC1000.

 

[PeteQ]

Where do you live Coops? Maybe someone local to you could sort you out with one...

Cheers