Ranco K50-p1354 thermostat, replacement question

[Daab]

my Lec U.224W under counter freezer. its Ranco K50-p1354 thermostat had stuck in the on position and I have googled and eBay searched for a Ranco K50-p1354 thermostat but come up with no results. Can I use similar thermostats such as K50-p1454 which is available to buy on eBay. The thermostat im looking for has 3 power terminal connections a positive on terminal 3 and negative on terminal 4 and also an earth connection and I noticed that some Ranco thermostats have 4 power terminal connections for use in fridge freezers. If i cant find a exact replacement can i use an alternative to the Ranco K50-p1354 thermostat?
really would apreachiation your help on this one thanks for replies in advance.

Ranco K50-p1354 photos

https://ibb.co/KjpPkjB
https://ibb.co/Yb5Mby7
https://ibb.co/XyK4C5s

lec freezer label information
https://ibb.co/BCN1pWr

[electrofix]

[USER=”2″]kwatt[/USER]

you any idea of a stat for this

Dave

[kwatt]

Not a hope now of a genuine one, it’s an old original LEC made in Bognor by the look of it and, R12 not used since the 1980’s.

The only chance would be a universal one probably a VS5/W5 like this:

https://shop.ukwhitegoods.co.uk/a011000-freezer-thermostat

Then trying to figure out how to rewire it to suit.

K.

[Daab]

I have been looking around. Yesterday I didn’t know anything about freezer thermostats but by the power of the internet it gives power to the needs of many I ended up here.

Does anyone know. What is the difference between a Ranco K50-p1354 and K50-p1454.

I can’t find a replacement for the Ranco K50-p1354 thermostat fitted to my freezer but i have found the 454 one available online. Both have two power terminals and an earth on its metal case. Both are very closely numbered and look identical to each other. Should I give the 454 thermostat a try. Whats the difference between them? The lec freezer u.224w I have runs a R12 compresser just to give a bit more information. The freezer is cosmeticly immaculate and I realise its very old but it would be a waste to tip it for the sake of something that would costs only a few quid to fix it.

listing for the 454 thermostat
https://www.ebay.co.uk/itm/Ranco-K50-P1434-Thermostat-Fridge-Freezer-Genuine-Ranco-OEM-/274717571587

.

[electrofix]

can tell its old R12 is the gas that got banned for destroying ozone

any stat you put in, as long as its for a freezer, and as long as the capillary gets to where it needs to be then it should work

cant say what the difference between the 2 stats are unless you can find data sheets, but if the one your putting in works in the correct temp range then ok

Dave

[Tony R]

Any freezer thermostat will do the job, only question is related to the power connections and lights on the freezer, if there is a red warning light then a thermostat with a rise in temperature signal will be required, if no warning light a standard thermostat for a freezer will be required, this has not been made clear in the original posts description of the terminals on the failed thermostat or if it has a rise in temperature warning light. A Ranco VF3 is the standard (no signal ) and the Ranco VS5 is with signal on rise ( warning light )

[Daab]

This is getting a little confusing for me as I am a novice concerning freezers. The lec freezer I have I think comes from the 80s. I have come to understand with its R12 compresser. Don’t want to throw it away as it’s In imaculate condition. It has no built in power or warning display lights. It’s thermostat has two power terminals and one earth terminal on its metal case. I’ve noticed a lot of similar looking thermostats with 3 power terminals but as i said the one in the this freezer has only two power terminals.

I am unable to find the exact numbered thermostat but there is one available to buy and its got the exactly the same number except for one didget ending in 454 instead of 354. Seems to be closely related. The others that have been mentioned the VS5/W5 have 3 power terminals. i have one with two. is this better option for an 80s r12 compresser with no power lights? I guess I shouldn’t buy one that uses 3 power terminals when the one fitted only uses two.

Does someone know how I can definitely find out how to discover for sure the right thermostat. Not going to throw this lec freezer away it would be a complete waist to chuck it without trying to fix it first. The Ranco K50-p1454 thermostat tube is much thicker at its end. the orginal 354 on my lec has a tube that has the same thickness all along its length.

Both the 454 and one fitted to my lec 354 have the longer length control knob metal stem where othes look a bit too short. I’m going by what I see. not what i know about freezers. Hoping that someone will understand what I’m going on about. a bit like a nutty professor lol.

https://www.ebay.co.uk/itm/Ranco-K50…-/274717571587 454 two power terminals listing

the offending article itself, photo
https://ibb.co/47ysNFW

[electrofix]

just to double check something
is this just a freezer or has it got a fridge

if no fridge then your ebay link describes the stat as a fridge freezer stat and if that is the case its meant to work in the fridge section

Dave

[Tony R]

You need the Ranco VF3 vari fix thermostat, two terminals, power in on one and power out to compressor on the other and it makes no difference which way round you put the wires on.

[Daab]

electrofix wrote:just to double check something
is this just a freezer or has it got a fridge

if no fridge then your ebay link describes the stat as a fridge freezer stat and if that is the case its meant to work in the fridge section

Dave

It’s a freezer not a fridge freezer.

[Daab]

Tony R wrote:You need the Ranco VF3 vari fix thermostat, two terminals, power in on one and power out to compressor on the other and it makes no difference which way round you put the wires on.

This unit is a freezer only not a fridge freezer. Just thought I’d say. Im learning as I go along. By the time ive finished I’ll be able to build my own freezer from the ground up just from chatting and learning from you good folks on here lol. Internet must be one of the best inventions ever.

[Daab]

is it a bit unusual that when I search for a lec freezer model U.224W, the one I have. I receive no results for this Model. This freezer was great until now. Its very old but compaired to my 4 year old beko fridge which has a door that has become very rusty on its door. But the lec enamel is still spotless after all these years. Still looks like knew why it would be a waist to recycle it to the tip.

[electrofix]

i know that
had a gec coldspace refrigerator till about 4 years ago. must have been 40 years old at least. ran on R12. no problem with compressor or refrigeration just door seals and the like let it down

they used to make things to last in those days

Dave

[Daab]

now I’m begining to get the right kind of feeling for thermostats

I read some info here introducing me to the difference between them all.

https://www.eliwell.eu/en/vs5-freeze…-vs5-1236.html

Dave, some one I last visited 13 years ago had a late 80s fridge freezer and a washing machine from the early 80s. After not seeing him for the past 13 years I went to see him at flat. He still has the same washer and fridgefreezer. I don’t get it. How is it possible a washer machine can last so long and still looks like knew and works flawless. He told me he has always washed the very heavy stuff by hand and has only washed with light loads in the machine. But still the washer has never once gone wrong and still works after all this time. Thats incredible and has to be some kind of miracle and maybe some kind of record too boot. Both washer and fridgefreezer are brands i have never heard of before.

As a kid in 1978 my mother had an tub top loading washing machine with an electric operated clothes mangel which you feed the clothes through to squeeze out the water. It’s was from the late 1940s. Would definitely be inside a museum now for sure.

[electrofix]

you have to look at historic cost to understand. The Hoover automatic washer was around £450 in the 70,s and a tradesman earned £45 a week

now move forward to today and do the same maths and you have a machine in the thousands. they could afford to over engineer so it lasted. paintwork was enamelled so the paint lasted. I think only Miele does that today

Dave

[Author]

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