22
Procedure
Status
Corrective Actions
4. Shield cad cell from external
light.
Indicator light turns off.
Indicator light stays on
Eliminate external light source
or permanently shield cad cell.
*Replace cad cell with new cad
cell and recheck.
*If indicator light does not turn
off, remove cad cell lead wires
from R7184B and recheck.
*If indicator light turns off,
replace cad cell bracket
assembly. Refer to
TRADELINE® Catalog for
bracket part numbers.
*If indicator light does not turn
off, replace controller.
5. On warm air systems,
jumper thermostat (T to T)
terminals on R7184B. (On
hydronic systems, jumper limit
terminal and L1 or R7184B).
IMPORTANT:
First remove one thermostat
lead.
Burner starts
Burner does not start
Trouble is in thermostat or limit
circuit. Check thermostat or
limit wiring connections.
Disconnect line voltage power
and open line switch.
Check all wiring connections.
Tighten any loose connections
and recheck.
If burner does not start,
replace R7184B.
Condition: burner starts
6. Reset oil primary control by
pushing in and releasing red
reset button.
Indicator light stops flashing
Indicator light continues to
flash at 1 Hz rate.
Verify that control is not
restricted mode (see footnote
a). If not in restricted mode,
replace R7184.
7. Listen for spark after burner
turns on (after a 2 second
delay.
Ignition is off
Ignition is on
Ignition is on, but no oil is
being sprayed into the
combustion chamber.
Spark ignitor could be
defective. Check for line
voltage at ignitor terminals. If
line voltage is present, replace
R7184B.
Go to step 8.
Wait for Valve On Delay to
complete (R7184B). Check oil
valve wiring, pump and oil
supply.
8. Check indicator light after
flame is established, but
before oil primary control locks
out.
Indicator light is on until the
control locks out and starts
flashing during lockout.
Indicator light stays off.
Replace R7184B.
Go to step 9.
TROUBLE SHOOTING GUIDE
Содержание IHS 1500
Страница 25: ...IHS 1500 Wiring Panel 24 ...
Страница 26: ...25 REPLACEMENT PARTS ...
Страница 27: ...26 18 19 20 21 REPLACEMENT PARTS ...
Страница 29: ...IHS 1500 OIL WIRING SCHEMATIC Page 1 28 ...
Страница 30: ...29 IHS 1500 LPNG WIRING SCHEMATIC Page 2 ...