Owner's Manual

Heat & Glo • PRIMO48, PRIMO48ST, PRIMO60, PRIMO60ST, PRIMO72, PRIMO72ST Owner’s Manual • 9/20 26
C. PVLP-SLP and PVV-SLP Power Vent Troubleshooting
Symptoms
Possible Causes Corrective Action
IntelliFire Plus System
1. Main Closes/ Pilot open, 5 seconds later
pilot sparking with power vent ON. If
condition 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
properly 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 assembly in place, verify that the pilot
fl ame is engulfi ng the fl ame sensing rod on
the left side of the pilot hood. With a multi-
meter, verify that the current in series be-
tween 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 #1-3 are correct, replace IPI module.
2. Pilot and Main shut down and 8K1-PVI
locks out with 4 LED alarm.
A. Blocked Flue/Insuffi cient Draft 1. Verify the tefl on pressure tube is connected
between power vent impeller housing and
vacuum switch.
2. Verify that wiring within Power Vent is correct
and that the power vent 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 mal-
function 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. Gap must be 5/8 in. if
Passive Heat option is installed.
3. Main Closes, 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. Shorted Pilot Sense 1. Verify that the white sensor lead is properly
connected 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 dam-
age exists.
4. Main Closes, 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. Disconnected Pilot Sense 1. Verify that white sensor lead is properly con-
nected to the S-terminal and the orange ig-
nitor lead is connected to the I-terminal on
the module.
5. If given ignition command in both ON
and REMOTE modes, system immedi-
ately locks-out with 3 LED alarm. Does
not spark or attempt to ignite.
A. Pre-Existing/False Pilot Flame 1. Check for pre-existing pilot fl ame. If so, th-
valve is defective and should replaced.
6. PRIMO48/PRIMO48ST (NG only):
Pilot extinguishes
A. Air from power vent moves more
quickly through the smaller size appli-
ances.
PVLP-SLP:
1. Open power vent baffl e no more than 1/2
inch.
PVV-SLP:
1. Install fl ue restrictor at no more than the 1-1
setting.