Rheem RIWH09AVFJ Design & Technical Manual page 78

 SW6: Memory backup setting (only for wired remote controller)
Set to "ON" to use batteries for the memory backup.
When batteries are not used, all of settings stored in memory will be deleted if there is a pow-
er failure.
SW6
OFF
ON
NOTE: Never turn it on in the case of simple remote controller.
Memory backup
Invalidity
Validity
- 72 -
Factory setting
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