I have a Heat Timer ETP control panel, which controls a gas boiler for
an apartment building. It's not working that well and was wondering
if the circuit board can be cleaned? If not, what is the replacement
model for this Heat timer control panel?
Yes you can clean the board. You will need:
5 parts Muratic Acid
2 parts Distilled Water
1 part Boric Acid
1 part Vinegar
Soak the board for 24 hrs in this solution completly submerged.
Rinse with tap water
Flush with pure Rubbing Alcohol
Finish with a light belt sanding with 80 grit paper and the board
should be good to go.
Cleaning the circuit boards is easy. Just make sure it is powered up and
turned on, and scrub the back of the circuit board firmly and completely
with OO steel wool. (the side of the circuit board where all the soldered
connections are). It is quite normal for the soldered connections on the
board to get oxidized and not conduct as well.
Let us know how it goes, and post some pics!
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