Error Code - Rheem 64DV Troubleshooting Manual

60 | P a g e S V C 8 2 0 ( P ) P o c k e t M a n u a l
Explanation: Heat exchanger thermistor malfunction.
Diagnostic Checks:

Heat exchanger thermistor
Turn Power OFF. Remove connector R :
Mid-Efficiency Units ONLY: Measure resistance between
High-Efficiency Units ONLY: Measure resistance between
Reinsert connector R .
Operate unit.
IF Error Code 32 appears:
Replace control board.
60
32 – Error Code
#3 wire (Black) & #5 wire (YELLOW):
#3 wire (Black) & #5 wire (GREEN):
7K – 23K OHMS
Remove control board
bracket to access heat
exchanger thermistor Molex
near
blower motor
(How to Remove: Section 1).
Continue diagnostics
on next page.