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My fridge upgrade (Read 2559 times)
 
Jan 8th, 2017 at 10:51pm

jclures   Offline
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I have had a bit of a side track on my camper. I thought I might try and get my 60ltr Trailblazer working again. The original fridge unit died years ago and fitting in a new factory unit was I thought a bit high. I nearly could have brought a new fridge.
I at the time fitted a new after market compressor but if was always to big for the job being a 5.5cc unit It did work but was problematic on really hot days.
I thought it was time to have another go, so I went looking on the internet for a new 2.5cc to a 3.5cc 12v compressor, I found one on AliExpress, it cost me $218au landed at my door.

https://www.aliexpress.com/item/BD25H-12V-24V-DC-Compressor-mini-compressor-for-...

...

I have now fitted the unit, I had a bit of research to do regarding the variable motor speeds, to which with a few resistors and a switch it now has a two speed system. Something the older units never had.

I had to get some help with the silver soldering as this needs two hands, I can get into enough problems getting Bonnie to help with normal soldering. Smiley

All now fitted and gassing it up.

...


I now have a fridge giving me nice cold beer again. Smiley

...

I am now planing on fitting in a digital thermostat to replace the old stile unit to give it more control over the temps. I will leave the older thermostat where it is though in case the digital unit ever fails.

I also have to work out what resistors I need to give it more battery control, either high or low battery level usage.
 
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Reply #1 - Jan 9th, 2017 at 4:34pm

Derek   Offline
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Full credit to you John.  Had it of been mine it would have been in the dump ages ago.  I have always envied people who can get in and fix things.
 

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Reply #2 - Jan 19th, 2017 at 1:19pm

jclures   Offline
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Derek A new Trailblaza still costs $1573 plus freight to get it here. So a little perseverance on my behalf was worth a go as the fridge cabinet is still like new.  Smiley
 
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Reply #3 - Jan 21st, 2017 at 1:20pm

jclures   Offline
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I am fitting in a new Digital LED Thermostat Relay, this should replace the old thermostat. Although I am still leaving the old  unit in place just in case this unit gives me any trouble.

...

I had to extend the probe wire length, hoping it should not affect the performance of it.
I have fitted it into the old mounting I already had, and I now have it running.

...

I have a ambient temperature of 31c, the fridge is .2c, and the Digital LED Thermostat Relay is set at - .5c to 1.5c.
When I have taken the power of the fridge then re powered it the digital LED Thermostat Relay remembered the settings.
 
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Reply #4 - Jan 25th, 2017 at 10:47am

Derek   Offline
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Looking good John
 

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