What Can cause a pcboard to fail?
PCboards fail because of power outages,
surges, and brownouts. Lightning is a
common cause of pcboard failure. The
spike or surge of volts can destroy the
board. Also the relays on the board can
fail or even connections. It's most
common to replace the board than to try
to fix or work around features of the
board and make the board unsafe or
unreliable. Also just use and time can
wear out a board.
How Do I tell which board I have?
Basically, you ID a board by the chip on
the board OR a label stuck on the board. It will have number/letters
on it. Example will be F106XXXXX or
H276XXXX or 6600-XXX. The critical numbers
on boards beginning with a LETTER are the
first 4 numbers/letters. For boards that
are all numbers, you need all the
numbers to IF they match
what you have. If you chip also includes a "Ver.
XX" on the chip, just make sure you have
a newer version or date.
Is it easy to install a new board?
boards are much like replacing a pcboard
on your computer. All you have to do is
be systematic with your approach. Even
after replacing many boards since 1995,
I still disconnect as few wires as
possible noting which I am removing,
swing the old board out, install the new
board, and move wire by wire from old to
new. As a safety step, always touch the
control box to ground out any static
charge you might have before touching a
What if my new board have parts or
is common. As boards are upgraded, the
OEM will move relays or connections.
They are labeled. IF you are connecting
a wire to a relay, just look at the old
relay and match the spot on the new
relay that is the same. IF you are in
doubt, contact us before you proceed.
What are jumpers?
Most PCboards have jumpers. They are
the manual way to tell the board how
this board to operate your model. Since
boards can work in a number of
configurations, it's important to make
sure these jumpers are adjusted correct
for your model. The easiest way is to ID
this jumpers on the old board and match
the new board to equal. Most boards have
small little black pieces that jump the
wires either together or separates them.
Thus a "jumper". A few boards require
cutting wires instead of jumpers. If it
doubt, contact us before installing and
turning on power. Do this wrong can harm
the board permanently and is not covered
under any warranties.
What is the filter timing?
Help On Jumpers,