Rheem 64DV Troubleshooting Manual page 75

74 | P a g e S V C 8 2 0 ( P ) P o c k e t M a n u a l
Blower Motor Diagnostics:
Test DC voltage across
Black and Red wires
on connector G :
144 – 192 DC Volts
Hold down MAX button.
Test DC voltage across
Black & White wires
on connector G :
12 – 18 DC Volts
Hold down MAX button.
Test DC voltage across
Black & Blue wires
on connector G :
4 – 10 DC Volts
Control board and blower
motor are OK.
CHECK GAS SUPPLY AND
VENTING.
IMPORTANT: While performing voltage checks, DO NOT touch
multimeter leads across BLUE & White wires. Damage may occur
Upper Right-Hand Corner of Control Board
MIN
74
Indoor Models ONLY
NO
NO
NO
to blower motor and control board.
Remove & reinsert G .
Operate unit again.
IF Code 61appears:
Replace control board.
Remove & reinsert G .
Operate unit again.
IF Code 61 appears:
Replace control board.
Remove & reinsert G .
Operate unit again.
IF Code 61 appears:
Replace blower motor.
MAX