ProFire PF2100 Troubleshooting Manual

FLAME DETECTION
Please consult this guide for any questions regarding Flame Detection or Flame Quality. For futher info please call our toll free number listed below. If you need additional information on
setting up your Pro re system please visit our website for our full selection of troubleshooting guides, quick start guides and product manuals.

SYSTEM IS NOT DETECTING FLAME

1
Does the ame quality drop from 100%
(Pilot) when the main comes on?
YES
Does the system stay running
with the ame arrestor open?
YES
Clean the arrestor and look
for other air restrictions
TROUBLESHOOTING GUIDES | FLAME DETECTION
2
NO
3
The draft from the main
NO
could be pulling the pilot
ame away from the
ame rod.
4
Reposition the ame rod.
With the system powered and in idle
mode, set a Multi-Meter to read AC
voltage and measure across the ION +
and ION - terminals. The voltage will
Take note of the maximum voltage
5
Measure the AC volatage from the ame
rod to ground if the rod is accessible. If it
is not accesible remove the wire from the
ame rod and measure on the connector.
Is the voltage measured at the rod close to
the voltage measured across the ION + and
ION - terminals?
6
Set the Multi-Meter to measure DC voltage
across ION + and ION - with the system in
manual mode.
Is the reading across ION + and ION -
around +5VDC?
7
Put the system into Auto Mode and
monitor the voltage on the Multi-Meter.
While sparking the voltage will jump
around, ignore this.
Take note of the voltage after the sparking
while the ame is present.
Did the voltage drop below +5V when the
ame was present?
8
The system is sensing ame, just not
enough.The DC voltage should drop to
-5VDC or lower (-8VDC is better) for
stable ame detection.
9
Adjust the ame rod positioning to try
to decrease the voltage while the ame
is present.
Ensure that the pilot ori ce is correct
for the gas used. (#54 for natural gas)
Ensure that there is a metal-on-metal
connection from the pilot nozzle to
the housing and a ground wire from
the housing to the 2100
Ensure that the ignition rod is fully
immersed in the ame
uctuate a bit due to the ame test.
NO

Is the voltage greater than 25VAC?

YES
NO
YES
NO
YES
NO
YES
The problem could be related to ame anchoring.
To verify this place a grounded rod in the ame.
Did placing the grounded rod in the ame improve the DC voltage reading?
YES

Try replacing the pilot nozzle

YES
Set the system up to use separate rods
for ame detection and ignition
TROUBLESHOOTING GUIDES
QUESTION ARE IN WHITE RECTANGLES
?
YES
YES, ALWAYS MOVES DOWN
Remove the wire from ION + and
measure the AC voltage between the
ION + and ION - terminals again.
Is the voltage above 35VAC?
YES
Is the wire run length from the
burner to the PF2100 longer than 25'
YES
The length loading on the wire is too high.
Using ignition wire for ION + will allow the
signal to be run up to 50'. Using separate
rods for ame detection and ignition can also
reduce the ION + load by bypassing the coil.
Is the same rod being used for
both ame detection and ignition?
YES
Measure the AC voltage on the ION +
wire where it connects to the coil.
Is it close to the same voltage that
was measured across the ION +
and ION - terminals?
YES
Replace the coil.
Remove the wire from ION + and
measure the DC voltage between
the ION + and ION - terminals again.
Is the voltage across the ION + and
ION - terminals around +5VDC?
YES
Check the ION + wire for nicks or other faults.
The system is not seeing the ame at all.
The circuit from the rod through the ame
to the nozzle to ground is not being
completed.

Check the grounding to the pilot nozzle.

Check for cracked ceramic on the ame rod.
Recheck the ori ce size
NO and increase the pilot
pressure
NO
NO, ALWAYS MOVES TO THE RIGHT
It is possible that the
NO
terminal card is faulty
Something is loading the
signal. Ensure that the
NO
wire type is not shielded.
Look for partial ground
shorts or nicked wires.
THERE ARE TWO RODS
Check the ION + wire for
NO
shorts to ground or nicks.
Check the ION + wire for
NO
shorts to ground or nicks.
It is possible that the
NO
terminal card is faulty
www.pro reenergy.com
1- 855 -PRO-FIRE