Board repair on Aquastat L8148E

mwbsmith

My Buderus furnace shut down and I found that jiggling the damper plug would get it to come back on. From other people's comments in various places, I determined that the solder on the board must be cracked.
I pulled the board and it was indeed cracked. I carefully put little droplets of fresh solder around the five pins behind the damper plug, put everything back together and it fired up without issue. However, there is a piece of cardboard that was on the back of the board that I just found, that I forgot to put back in place. Is that particularly important or just to keep dust out?
Is that a safe fix (can't see why it's not) or is a new board in order?

Thanks!

Paul S_3

Not safe...manufacture states no altering of product....anything can happen....buy another aquastat relay not that expensive

QasimMohmood

The cardboard in the back is there to protect the backside of board from shorting out against the metal. Put the cardboard back in.

mwbsmith

Paul S.: Any recommendation for a vendor?

Paul S_3

Online try supplyhouse.com....where u located

mwbsmith

NC

Paul S_3

I dont know vendors out there but any plumbing supply should stock that control...at least up here they do