Rheem 64DV Troubleshooting Manual page 92

S V C 8 2 0 ( P ) P o c k e t M a n u a l P a g e
In 10 second intervals; cycle
unit 3 times by turning unit:
ON-OFF; ON-OFF; ON-OFF
Does 0Y status in
maintenance mode indicate
presence of flame after 5
seconds?
Disconnect wires at flame
rod(s). While viewing burner
chamber through sight glass:
In 10 second intervals; cycle
unit 3 times:
ON-OFF; ON-OFF; ON-OFF
Does 0Y status in
maintenance mode indicate
presence of flame after 5
seconds?
Remove & clean burner
assembly.
On remote control, go to maintenance mode 0Y table.
For maintenance mode instructions go to page 21.
All maintenance mode '0Y' readings should be done immediately
IF Flame Rod(s) is detecting flame, maintenance mode will
NO
NO
after turning the unit OFF.
display:
Indoor Units: 05
Outdoor Units: 01
Unit appears to be OK.
Operate unit.
IF 80 – Error Code appears:
Replace control board.
Clean flame rod(s).
IF 80 – Error Code appears
after cleaning flame rod(s):
Replace flame rod(s).
91
91