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6 | TROUBLESHOOTING
This section is designed to help you troubleshoot the PF2100. A list of common issues and solutions,
reference tables containing Shutdown Messages, Alarm Codes, and Warning Messages, and step-by-step
guides for troubleshooting specific issues are included in this section.
If you are having trouble with your PF2100 System, please consult the following resources in this order:
1. Consult this section for solutions to see if one matches your
needs.
2. Consult the support section of our website at
www.profireenergy.com.
3. Contact us on our support line at 1-855-PRO-FIRE (776-3473).
6.1 | Common Issues & Solutions
Under each issue is a list of possible solutions.
EXPANSION CARDS
Cannot Write Setpoints via Modbus
1. Check that the system has the latest firmware. Firmware older
than v1.8.005 did not support this feature.
2. Check that the Modbus Card has the latest firmware.
Firmware older than v4.0 did not support this feature.
FLAME DETECTION
System Has Visible Flame But Cannot Detect It
1. The flame rod, pilot assembly and the gap between them
should be fully engulfed in flame. If not, adjust the rod
positioning.
2. Check that the flame detection wiring does not exceed the
recommended maximum length.
3. Check that the Ion+ wire is securely connected as per the
appropriate wiring diagram.
4. Check that the ground connection between the PF2100 and
the pilot assembly is secure.
5. Put the PF2100 into Manual Mode and use the Review Menu
to check the flame quality level.
6. Consult the instructions in the Flame Detection
Troubleshooting Guide for further details on Flame Detection.
SHUTDOWN
System Shuts Down with a High/Low Voltage Message Shutdown
1. Make sure that the system voltage setting matches the power
supply’s nominal voltage.
2. Check that the system has the latest firmware. Firmware older
than v1.8.005 was prone to shutdown on transient voltage
spikes and dips.
3. Make sure that some other load is not causing the supply to
drop periodically. Remove other devices from the supply or,
monitor the supply voltage with a data logger.
4. Make sure the power supply is rated appropriately for the
valves and other peripheral devices attached to the PF2100.
System Shuts Down On High Temperature ESD
1. Check that the HT ESD setpoint is not set too close to the
operating temperature of the system. Measurement accuracy
and process control overshoot can cause the system to
shutdown if they are too close.
System Shuts Down On an Open TC Error
1. Check the thermocouple connections inside the PF2100.
Note that both the Process and High Temp thermocouples are
required.
2. Check for breaks in the thermocouple wiring.
System Shuts Down On TCS Not Being Equal
1. Press the Up and Down arrows together.
2. Press the Up arrow until you get to a screen with 4
temperature readings, DH, TH, TP and TA.
3. If the TH and TP readings are close but DH is different, follow
these steps:
4. Go to the calibration menu.
5. Step through the menu to Cal High Temp = xxxC.
6. Press the Up arrow once.
7. Press OK.
8. Go back to the screen with the temperature readings and
make sure the issue is corrected.
SOLAR POWER
Solar Output Voltage is 12V when 24V is Expected
1. Check solar panel wiring. They should be wired in parallel
rather than in series.
Expected Battery Life is Not Achieved
1. The PF2100 is not set up by default to use low power valves
with a PWM setting of 20%.
2. The PF2100 is not set up to put the display to sleep when not
in use.
3. The solar panel is undersized.
4. The solar panel is shaded or not located in full sun.
The Battery is Not Being Charged at All
1. Check the Solar Charger for damage or defective parts. Look
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