Vendo 81 cycles every 5-10 mins

[Zach]

My 81 cycles about every 5-10 mins, is this normal? I feel like my electirical bill will be through the roof here soon. It gets ice cold and thermostat is on the lowest setting. It only runs about a minute or so then shuts off like it should but just seems like that's a lot of cycles. Any ideas?

[Slapshot42]

Did you use a thermometer to check the "cut in" and "cut out " temps?

You could have a bad thermostat . ..

Cut in is usually 33, and Cut out is 38.  A compressor will usually cycle 2-3 times in hour but can be dependent on few variables like proper insulation, door seals, gaskets, or how much product is in the machine .

[johnieG]

Cut In = the "on" temperature. ( how warm it gets before the compressor turns on.)
Cut Out = the "off"  temperature ( how cold it gets before the compressor turns off.)

If your thermostat is an air temperature sensing type & accidently is in contact with the evaporators metal housing
Or is touching a cold line, it could cause the unit to "short-cycle" as you've described. perature ( how cold it gets before the compressor turns off.)

[Zach]

The sensing probe is mounted to the side of the evap, that probably is the problem 

I am using this stat: http://www.ebay.com/itm/Dixie-Narco-soda-vending-machine-thermostat-cold-control-for-refrigeration-Ranco-/192193943559?

The machine has all new seals, liner and insulation so I don't think that is the issue.

[Slapshot42]

Cut In = the "on" temperature. ( how warm it gets before the compressor turns on.)
Cut Out = the "off"  temperature ( how cold it gets before the compressor turns off.)

If your thermostat is an air temperature sensing type & accidently is in contact with the evaporators metal housing
Or is touching a cold line, it could cause the unit to "short-cycle" as you've described. perature ( how cold it gets before the compressor turns off.)

I knew I mixed that around.  Terminology aside should of got the idea.  Yes, did you use a thermometer which would be the first step...

[Slapshot42]

The sensing probe is mounted to the side of the evap, that probably is the problem 

I am using this stat: http://www.ebay.com/itm/Dixie-Narco-soda-vending-machine-thermostat-cold-control-for-refrigeration-Ranco-/192193943559?

The machine has all new seals, liner and insulation so I don't think that is the issue.

To insure accuracy it's nice to own a $20 thermometer .  FunTronics sell them they are a handy tool when setting temps , etc.

[Zach]

I think I have one somewhere and if not I'll get one, I figured if the beer was cold then we are all good but apparently not 

[Zach]

Looking at the back of the stat, what are the two screws for? They look like an adjustment for maybe the cut in and cut out?

[MoonDawg]

        Luckily your thermostat has adjustment screws. If you want, you could try adjusting the "cut in" to a warmer temperature.

[Zach]

Unmounted the probe from the condenser and it cycles 3 times an hour! Thanks for the help gents!