Mitsi inverter problems

[billywizz]

Just wondered if anyones been having problems with single phase PUHZ-RP125VKA units i.e. Inverter boards failing after install then failing again after replacement even with mods to protect against supply problems?

[Thermatech]

No knowledge of any problems

90% all inverter problems at new installation are due to power supply problems.
Make sure the Neutral is 100% because any poor neutral connection at the isolator / power distribution board / main incomming board can make a 'floating Neutral'
You can measure this by measure N to Earth. Any voltage wetween N&E can be due to floating N & can make problems for any circuit boards but inverter circuit dont like this sort of power supply problem.