# My engel wont run on 12volt but will on 240 volt

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Posted on Jan 02, 2017

You will not find any service manual. You can try www.engelaustralia.com but I doubt it will help you. By the sounds of it your 12vdc oscillator is gone, it is usually a K3320 or similar on the old boards. On the new boards you would have to replace the board. G luck

Posted on Apr 20, 2009

SOURCE: dryer wont get hot

check thermal fuse

Posted on Jan 21, 2010

SOURCE: what is the cprimary load

Ohm's law tells us that: volts = amps x resistance and watts =volts x amps. Watts (300) = volts (240) x Amps (?); or 300 / 240 = 1.25 Amps That means the inverter can supply up to 1.25 Amps to a 240 volt load.

The primary is 12 volts, this is just 1/20th of the secondary 240 volt output. Since the best you can ever get is 100% efficiency -this means you'll need to supply 20 times the current. 1.25 Amps (at 240V) x 20 = 25 Amps (at 12V). As a check, from above Ohm's law that states Watts=Volts X Amps we get: 12VDC x 25Amps = 300Watts. Check!

Some side notes. The Ohms law used above is for DC circuits and purely resistive loads on AC circuits. I do not know what your 1.25 A @ 240VAC load is - but I suspect it won't be purely resistive. Also, since we're working with an electronic inverter as opposed to a transformer and DC rectifier there are some things that push losses higher. You might need to provide a 30 Amp 12 VDC source voltage in order to provide the 1.25A @ 240VAC output. Lastly, I wouldn't not run the output at maximum for long periods of time - or at all. 1 Amp @ 240VAC would be much better.

Posted on Mar 09, 2011

Perhaps a blown fuse.

Posted on Jan 13, 2015

Depends on how often and long the unit is left open, rule of thumb, fridge 4 deg C, freezer - 18 deg C.

Posted on Mar 03, 2016

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http://www.engelaustralia.com.au/products_details.asp?productid=21365

While the below is not an eclipse, it is suggestive.

The only requirement needed for running your "E" or "F" series Engel Fridge - Freezer (The later Models) on a 240 volt generator is to ensure the generator you are using is A.V.R. Automatic Voltage Regulated. Please refer to your generators user manual. If it is an older generator with A.V.R., it doesn't hurt to add an in line spike protector or surge arrestor.

Engel Website

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### What is the cprimary load on a 12volt to 240 volt 300watt inverter

Ohm's law tells us that: volts = amps x resistance and watts =volts x amps. Watts (300) = volts (240) x Amps (?); or 300 / 240 = 1.25 Amps That means the inverter can supply up to 1.25 Amps to a 240 volt load.

The primary is 12 volts, this is just 1/20th of the secondary 240 volt output. Since the best you can ever get is 100% efficiency -this means you'll need to supply 20 times the current. 1.25 Amps (at 240V) x 20 = 25 Amps (at 12V). As a check, from above Ohm's law that states Watts=Volts X Amps we get: 12VDC x 25Amps = 300Watts. Check!

Some side notes. The Ohms law used above is for DC circuits and purely resistive loads on AC circuits. I do not know what your 1.25 A @ 240VAC load is - but I suspect it won't be purely resistive. Also, since we're working with an electronic inverter as opposed to a transformer and DC rectifier there are some things that push losses higher. You might need to provide a 30 Amp 12 VDC source voltage in order to provide the 1.25A @ 240VAC output. Lastly, I wouldn't not run the output at maximum for long periods of time - or at all. 1 Amp @ 240VAC would be much better.

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