Wayne EH - Page 12

12
8. Check cad cell sighting
for view of flame.
- Disconnect line
voltage power and
open line switch.
- Unplug cad cell and
clean face with soft
cloth. Check
sighting for view of
flame. Place cad
cell back in socket.
- Reconnect line
voltage and close
line switch.
- Start burner,
Burner locks out.
 Go to step 9
Burner keeps running, until “call
for heat” is satisfied.
 System is okay.
9. Check Control & Cad
cell.
- Remove cad cell
wires from
connectors on
primary and leave
lead wires open.
- Apply power to
device
- Place jumper
across cad cell
terminals after
burner motor turns
on.
Burner doesn’t run.
 Replace primary control.
Burner runs.
 Control is okay, replace cad cell.