Owner's Manual
27
Heat & Glo • PRIMO48, PRIMO48ST, PRIMO60, PRIMO60ST, PRIMO72, PRIMO72ST Owner’s Manual • 9/20
Symptoms
Possible Causes Corrective Action
IntelliFire Plus System
1. Main Closes/ Pilot open, 5 seconds later
pilot sparking with power vent ON. If condi-
tion persists for 60 seconds, 8K-1 locks out
with 3 LED alarm.
A. Pilot Rectifi cation Failure 1. Verify that black wire on IPI wire harness is prop-
erly grounded to the fi replace chassis.
2. Verify that pilot is not being compromised by draft
such that it fails to rectify. With the glass as-
sembly in place, verify that the pilot fl ame is en-
gulfi ng the fl ame sensing rod on the left side of
the pilot hood. With a multi-meter, verify that the
current in series between the module and the
sense lead is at least 0.14 microamps.
3. Verify that line inlet pressure is within range on
rating plate and correct pilot orifi ce is in pilot.
4. If #1-4 are correct, replace IPI module.
2. Pilot and Main shut down and 8K1-PVI
locks out with 4 LED alarm.
B. Blocked Flue/Insuffi cient Draft 1. Verify the tefl on pressure tube is connected be-
tween power vent blower impeller housing and
vacuum switch.
2. Verify that wiring within PVI is correct and that the
blower operates during the ignition command.
3. Verify that the venting is connected and sealed
properly.
4. Verify that the vent termination is not blocked.
5. If #1 thru #4 are complete, connect black and red
wires to bypass vacuum switch. If malfunction
is corrected, lock-out system until the vacuum
switch can be replaced.
6. Verify 3/8 in. barrier glass gap is maintained and
not obstructed.
3. Main Closes, 5 seconds later pilot sparking
with power vent ON. If condition persists
for 60 seconds, 8K-1 locks out with 3 LED
alarm.
C. Shorted Pilot Sense 1. Verify that the white sensor lead is properly con-
nected to the S-terminal on the module.
2. Check for soot deposits on the pilot sense rod,
adjacent shielding, or logs. If so, clean aff ected
parts.
3. Verify that the white sense lead from the pilot
is not damaged or melted within the fi rebox or
valve compartment. Replace pilot if damage ex-
ists.
4. Main Closes, 5 seconds later pilot sparking
with power vent ON. If condition persists
for 60 seconds, 8K-1 locks out with 3 LED
alarm.
E. Disconnected Pilot Sense 1. Verify that white sensor lead is properly connect-
ed to the S-terminal and the orange ignitor lead
is connected to the I-terminal on the module.
5. If given ignition command in both ON
and REMOTE modes, system immediately
locks-out with 3 LED alarm. Does not spark or
attempt to ignite.
F. Pre-Existing/False Pilot Flame 1. Check for pre-existing pilot fl ame. If so, the valve
is defective and should replaced.
D. PVI-SLP-B Power Vent Troubleshooting