SVC 810 Tankless Troubleshooting Manual
6
Implementation
Date
Models
Affected
Modification/Upgrade New Parts Board
Programming
Flame rod and igniter on
right hand burner swapped;
added a ‘target’ for the
spark to hit
Burner No
Improved burner cover plate Burner cover
plate
No
New programming chip –
all RTG74 models. The new
burner plate cover modified
the air flow characteristics.
This means the chip
programming had to
change.
Programming
Chips; this is
when the 2
chips in a bag
started.
Yes
December 5,
2006
‘dash two’
model
RTG 74 chassis only Yes Yes
Removed transformer. 120v
AC is the primary power
source to board
No Yes
Manifold pressure changed No Yes
Programming chip changed
to reflect new manifold
pressures
Programming
Chips
Yes
Moved gas inlet connection
to outside the chassis for
easier replacement
No No
RTG 53/2-42 chassis
New igniter | New wire
harness for igniter | New
location
Yes Yes
July 1, 2008 RTG 66 Direct Vent model only;
altitude configured via dip
switch settings; inlet gas
pressure check port added
Many Yes
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