Error Code - Rheem 64DV Troubleshooting Manual

62 | P a g e S V C 8 2 0 ( P ) P o c k e t M a n u a l
Explanation: Outlet thermistor malfunction.
Diagnostic Checks:

Outlet thermistor
Reinsert connector R .
Operate unit.
IF Error Code 33 appears:
Replace control board.
CONTROL
BRACKET
62
33 – Error Code
Turn Power OFF.
Remove connector R :
Measure resistance between
#3 wire (Black) & #4 wire (RED):
7K – 23K OHMS
Remove control board
bracket to access outlet
thermistor Molex near
blower motor
(How to Remove: Section 1).
Continue diagnostics
on next page.