To Replace Pc Board (Controller) - Barnstead FB1300 Operation And Repair Manual And Parts List

M S
AINTENANCE AND ERVICING
Warning
Disconnect furnace from power
supply before servicing.
24
4. Install new solid state relay and recon-
nect wires.
5. Replace bottom cover and turn furnace
upright.
6. Reconnect furnace to power supply.
To Replace PC Board
(Controller)
1. Turn furnace upside down and remove
bottom cover.
2. Disconnect wires from PC Board.
Identify or mark wires disconnected to
ensure proper placement and connec-
tion when re-installing.
3. Remove PC Board from bottom cover.
4. Install new PC Board and secure.
5. Reconnect wires identified in step 3 to
new PC board.
6. Replace bottom cover and turn furnace
upright.
7. Reconnect furnace to power supply.