PIP inverter repairs and hardware modifications

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elik745i
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Re: PIP inverter repairs and hardware modifications

Post by elik745i » Sun, 29 Sep 2019, 18:59

Hi guys, I have problem with my 5KVA MUSTpower inverter, had just worked 1 year and got broken. I think the problem is with charger board, but not sure as it keep switching on and off the charger board every 40 seconds or so, when it is on charger board delivers power to the load and to the battery, but after about 5-6 seconds relay swiches off and stopping power delivery from solar panels. here are youtube video I took, where you can see settings and internals. Must power can't help, they have got very poor support!
Please help!
https://www.youtube.com/watch?v=DOiTCSANW-c
https://www.youtube.com/watch?v=mhqg2_rrprQ
https://www.youtube.com/watch?v=uoOaQV64_Vk
https://www.youtube.com/watch?v=8_WUvNWtmFY

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coulomb
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Re: PIP inverter repairs and hardware modifications

Post by coulomb » Sun, 29 Sep 2019, 22:34

elik745i wrote:
Sun, 29 Sep 2019, 18:59
Hi guys, I have problem with my 5KVA MUSTpower inverter,
It's a MustPower PH1800 series, perhaps a PH18-5048 PLUS. This seems to be a clone of the early PIP-4048MS, with firmware modified to allow feed-in to the grid and 5 kW output.
had just worked 1 year and got broken.
It's a clone, so you don't know what you'll get. MustPower do seem to be one of the larger clone manufacturers, but still.
Must power can't help, they have got very poor support!
Unfortunately, you don't get great support even from a regular reseller. That's the nature of these cheaper machines. The Voltronic Power manufactured units do seem to last reasonably well, as long as they don't get too hot for too long.

Sorry, I don't know how much if any of our limited Voltronic Power based knowledge will translate to these clones. They do look extremely similar internally, but that doesn't mean much.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

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