July 3, 201610 yr Does anyone possibly have a wiring diagram for the above system which is one the back of a panel powering a solar pump? The board is labelled pmpver4.pcb MicroCare. It seems to have got rainwater into the housing and one of those little flat goodies with 2 or 3 legs and a heatsink seems to have popped (don't know what it's called). There or 3 of these in a row, 2 have 3 legs and the popped one looks like it only has 2 legs. Unfortunately I can't read any of the writings on the component. Much appreciated
July 4, 201610 yr 11 hours ago, dax021 said: Does anyone possibly have a wiring diagram for the above system which is one the back of a panel powering a solar pump? The board is labelled pmpver4.pcb MicroCare. It seems to have got rainwater into the housing and one of those little flat goodies with 2 or 3 legs and a heatsink seems to have popped (don't know what it's called). There or 3 of these in a row, 2 have 3 legs and the popped one looks like it only has 2 legs. Unfortunately I can't read any of the writings on the component. Much appreciated I currently have one at home which I need to repair - also got some water in. There are two FETs (3 legs) and a diode (2 legs) (all 3 TO220 package components) in a row - I will get the part numbers tonight. Those might not be the only components which need to be replaced though.
July 4, 201610 yr Author Hey, thanks superdiy, much appreciated. I can read the writing on the middle FET, IRF540N, IOR P2030, 4K6L - is this the same as a 45N15? Can I go to an electronics shop and ask for a BYV29 and they'll give me right part to swap out the blown one? Everything else looks ok, as in no obvious damage, except one track burnt with the diode. Should be easy enough to repair. I just hope that's all that's wrong. Allpower quoted me R700 to replace the board
July 5, 201610 yr 11 hours ago, dax021 said: Hey, thanks superdiy, much appreciated. I can read the writing on the middle FET, IRF540N, IOR P2030, 4K6L - is this the same as a 45N15? Can I go to an electronics shop and ask for a BYV29 and they'll give me right part to swap out the blown one? Everything else looks ok, as in no obvious damage, except one track burnt with the diode. Should be easy enough to repair. I just hope that's all that's wrong. Allpower quoted me R700 to replace the board The IRF540N is similar to the 45N15, if they've used IRF540's in your unit than it is not a problem. You local electronics supplier might or might not have the diodes, I can't tell, but otherwise you can try one of the bigger suppliers e.g. Mantech R8.79 ex VAT RS R9.71 ex VAT each per pack of 5
July 5, 201610 yr 5 hours ago, superdiy said: IRF540N Extremely common N-channel MOSFET, made be International Rectifier (hence the IR prefix) :-)
July 6, 201610 yr Author Thanks to both of you. I will source one of those BYV29's, plug it in and see what happens
July 8, 201610 yr Author Unfortunately out of warranty. Only been used for a couple of months, but was in storage for at least 2 years prior to using
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