Remove flame control cover (1) and circuit board (2) by removing two screws (3).
To remove rigid conduit (4), tag and disconnect wires (5) in control box (6) and remove nut (7A)
from connectors (7). Remove rigid conduit (4) from control box (6).
To remove lower conduit, remove inspection plate (10), and gasket (13) to disconnect wires.
Remove lower conduit, loosen nuts (11) and slide conduit (4) out.
To remove upper conduit (9), loosen nuts (11) on connectors (8) at both
ends of conduit (9).
Loosen screws, remove cover (14) and remove leads (26) from high limit switch (15). Unscrew nuts securing
conduit to limit switch. Remove high limit switch (15) and slide conduit (9) out.
To remove short conduit (12), remove inspection plate (10) and gasket (13) from tee (8A) and
remove wires. Loosen nuts (11) on connectors at both ends of conduit Remove ground cone (8) from tee (8B).
Remove knob (22), nut (23), and cover (24) from operating control (25).
Disconnect wires from common and normally open terminal.
Loosen four screws (17) and remove cover (18) from electrode holder (20).
Disconnect lead from terminal. Unscrew electrode holder (20) from tank. Remove electrode
holder (20) from electrode (19). Remove nipple (21) from electrode holder (20).
Unscrew tee (8B) from nipple (8C) and remove operating control (25) from tank.
To remove flexible conduit (16), tag and disconnect wires (27). Remove nut (28) and push
connector (29) out. See figure on page 4-38.
Unscrew connector (30) at other end of conduit and pull wires through.