Most likely its the
pressure switch. You
probably will have
to replace soon but
let's see if you can
adjust for now.
Turn off main power
and open the access
panel. Strapped to
the back of the
control box is a
steel tube. That's
the heater.
On the left backside
of the tube, screwed
into it is the
pressure switch. You
will see 2 wires
coming out of it.
If it has a gray
shell, remove and
discard. If there is
a piece of tape or
metal clip holding
the black adjust
wheel, remove and
discard. Turn the
wheel one full turn
clockwise. That
should do it. IF
not, try another
turn, no more.
If the wheel doesn't
turn easily or this
doesn't solve the
problem, replace. Go
to:
You need switch
#2000-064.