discover a comprehensive directory of free and low cost camps check out our comfortable cushions check out the new remote control Jockey Wheel Lithium Batteries Learn more about Sat Phone Sales Learn more about our special Townsvile rates Learn more about our CPAP machines designed for caravans
Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: Waeco Powersupply


Guru

Status: Offline
Posts: 1152
Date:
RE: Waeco Powersupply


Another potential fault in the powersupply is failure to start up. This can be caused by R2 100K 2Watt metal film resistor(10c part) It can go high in value or open circuit. Its used to kick start the SMPS at turn on.



__________________
D.L.Bishop


Senior Member

Status: Offline
Posts: 460
Date:

Very true, I have a lot of bits if you were looking for anything ,, Just give me a pm ....

__________________

Land Rover Discovery Chipped TD5 Manual ,Air Springs, Anti Sway. T.C.
Auto level. Van, Roadstar 21.6 Voyager 4000 all sola powered.



Guru

Status: Offline
Posts: 1152
Date:

Hi Bob, Unfortunatly this isn the first time people have been charged that mutch to just replace the powersupply board. I suspect that it wouldnt cost mutch to repair the board.



__________________
D.L.Bishop


Senior Member

Status: Offline
Posts: 460
Date:

Yes also saw that and wondered why some one would spend that amount getting it fixed when a new board would be much less than that..
Have a box full of bits just like that, they just need going over .....
Not many people will pull the back off their fridge and solder bits to it and change wires....
Have let the smoke out of a few at times..big smile..
Have a good easter ......
Bob

__________________

Land Rover Discovery Chipped TD5 Manual ,Air Springs, Anti Sway. T.C.
Auto level. Van, Roadstar 21.6 Voyager 4000 all sola powered.



Guru

Status: Offline
Posts: 1152
Date:

Waeco Ps2.JPGWaeco Ps bypass.JPGTo bypass the 240v powersupply if nolonger working Remove Red+ wire from the DC socket & White + wire from the circuit board which comes from the powersupply. Run a thick red wire from the DC socket+ to the Circuit board + where the White wire was. The fridge should run on 12V now.



__________________
D.L.Bishop


Guru

Status: Offline
Posts: 1152
Date:

Waeco Ps2.JPGWaeco Ps4.JPGWaeco Ps5.JPGWaeco Ps6.JPGWaeco Ps10.JPGWaeco Ps14.JPGOn another Forum i noticed a person was charged $460 to get his Waeco fridge repaired as it wouldnt run on 240V. It had been running on aYamaha digital sinewave generator, this should not have been a problem. this got me thinking as i have a 3yr old CF-40 Waeco, what could go wrong with these powersupplys? I removed mine from the fridge & checked it out. First thing i noticed is a very small relay to automaticly change from 240V to 12V, its actually switching 24V from Powersupply to 12VDC, its ratings are240VAC 7Amp, to use it in a low voltage situation you can atleast halve its rating. This Relay is a potential cause of problems & dry solder joints on the board. If the 240V side of the power supply has been subject to over voltage there is a fuse soldered to the board worth checking. Next part that may fail in this situation is the 240V bridge rectifier ($5). Q1 is a IRFPC50 mosfet may also be damaged ($15) this is the most expensive part in the powersupply. There is also one capacitor that may fail C4 100Uf 35V. On the 24VDC side of the powersupply is 2 Caps that may cause problems eventualy if they dry out C16/19 2200Uf 35V. This powersuply is out of a 3Yr old CF-40 Waeco.



__________________
D.L.Bishop
«First  <  1 2 3 4 | Page of 4  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us
Purchase Grey Nomad bumper stickers Read our daily column, the Nomad News The Grey Nomad's Guidebook