CNBOU 1KW inverter blown resistor

[tsumasuko]

hi all,
i have a CNBOU 1KW inverter for repairing. there is a blown resistor that cannot read the value. i need help who someone have same product and eligible to tell me what is the value of this resistor.

thanks for any help.

[beatman]

It looks like the aishi capacitors are bulged?Try to search for service manual with the model name or the board printed code or a member have the same machine and can help.Other option is to cut carefully with knife the resistor in the middle and measure the two halfs and from both numbers you have about the whole resistor number.

[Phil1977]

Out of all the components in the inverter it´s very improbable that the resistor has caused it´s own death. Even if you find the right value you will have to do more failure analysis.

[tsumasuko]

yeah there are some parts broken. you saw these 2 caps and 2 more on the other side are bulged. replaced already. also find 2 mosfets(40N60) failed out of 4.

this burnt resistor stay in between 12V input and PWM (SG2525) control board. looks like fuse resistor. i tried 4.7 ohm/3W but nothing happened. no short circuit by the way. ordered pwm chip and i will try again.

[tsumasuko]

Hi all,

i am here for quick update.
 Instead using a guessed resistor i just added 160mA resettable fuse and changed the other broken parts that i mentioned. now its working fine. thanks for helping..