Tuesday, 15 June 2021

Fuse F1 blows on PC board

Hello guys

i have a f59-5186 (1102285201) board on my 500K btu hayward heater that is only 2 years old and blows the fuse 3 amp (automotive type fuse) not the slow blow and i can not figure out if this fuse runs the panel only or other boards. Once blown the heater is dead. Sometimes it will not blow for hours. I ordered a new board but i just wanted to know if someone has run into this before on this low nox heater.
As an update i replaced the board and still blows the fuse. I will...


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