Rheem 64DV - Page 66

S V C 8 2 0 ( P ) P o c k e t M a n u a l P a g e 65
65
Locate & separate Blue
Molex (located near blower
motor). Check resistance
across White wires on female
end of Molex:
2K – 72K Ohms
7K – 23K Ohms
YES
Clean scale build-up ambient
thermistor. Reassemble and
operate unit. IF Error Code
34 appears:
Replace ambient thermistor.
NO
Reconnect Molex. Check
resistance on connector R
between #3 wire (Black) and
#7 wire (Blue):
2K – 72K Ohms
7K – 23K Ohms
YES
Replace wiring harness for
connector Ron control
board.
NO
Reinsert connector R.
Operate unit.
IF 34 - Error Code
appears:
Replace control board.
Blower Motor
Molex Connectors