Rheem 64DV - Page 30

S V C 8 2 0 ( P ) P o c k e t M a n u a l P a g e 29
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FINAL CHECK: Water flow sensor in water volume
control valve.
Check connector ‘S’ between the Red and Black
wires. With the unit ON and no water flow, you
should read 11-17 DC volts. If not, replace the control
board. IF you have voltage, then.......
With the water flowing, measure 2-5 DC volts
between the Brown and Black wire. (This is
measuring water flow thru the control). IF you have a
reading and no main burner, replace the control
board. If you do not have a reading, remove any
debris from water volume control valve.
Single Unit Installations ONLY:
All DIP1 switches must be in the ‘OFF’ position
(DOWN).
DIP 1
Manifold (Multiple) Unit Installations
ONLY:
Go to 03 - Error Code to verify proper DIP1 setting.
Water Flow Sensor:
Connector Location
On Page 14