47
11/6/2018
© 2015 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
PC Board Removal
Disconnect power supply to the unit.
1. Remove screw from the top of P.C. board.
2. Pull the P.C. board up off of the plastic peg in
the bottom of the unit.
3. Pull P.C. board out cabinet, disconnect all
wiring harness connections on board. Take
care not to stress the connections when
unplugging them. Press in on the latch to
release each connector before unplugging it.
A small screw driver can be used to push in
on these latches.
NOTE:
Keep the old board for data transfer to
new board. A cable will be supplied with new
P.C.B to allow data transfer.
If the micro processor on the old board is
damaged, you will need to manually program
each of the 14 parameters, instructions
provided with new board.
1
2
