Rheem 64DV - Page 85

84 | P a g e S V C 8 2 0 ( P ) P o c k e t M a n u a l
84
76 – Error Code
Explanation: Communication fault with remote
control. Remote control is not communicating with
control board.
Diagnostic Checks:
 Remote control
Visually inspect remote
control wiring for damaged or
loose connections.
Is wiring OK?
YES
Tighten loose connections or
replace damaged wiring.
NO
Unplug unit and remove
remote control wires from
bottom of unit. Plug unit in
and operate.
Did unit go to main burner?
YES
Replace control board.
NO
Turn Power OFF then ON.
While water is flowing & unit
is attempting to ignite; check
DC volts across Green &
Black wires at connector C:
4 – 6 DC Volts
YES
Replace remote control
wiring.
NO
Replace remote control