Rinnai V65e - Diagnostic Codes

Value Series Manual 33
To Display Diagnosc Informaon
To display the most recent diagnosc codes press and hold the “On/O” buon for 2 seconds on the MC-91-2
controller. While holding the “On/O” buon press the up buon. The last 9 diagnosc codes will ash one
aer the other. To exit this mode press the “On/O” and up buon as before.
To enter or exit the maintenance monitor informaon mode press and hold the down buon for 2 seconds and
without releasing it press the ON/OFF buon.
To obtain the water ow rate press the up or down buons unl “01” displays. The water ow rate will then
appear. For example “58” means 5.8 gal/min.
To obtain the outgoing water temperature press the up or down buons unl “02” displays. The temperature
will appear in degrees Fahrenheit.
Diagnosc Codes
This water heater is designed to display diagnosc codes. If there is a potenal operaon concern refer to the
code and remedy on the next page.
Data Unit No.
Water ow rate 0.1 gal/min 01
Outgoing water temperature Degrees Fahrenheit 02