2. Install filter power line kit (PN 6A00171G01) or high quality line filter for
input power.
9.3.26 COe Temp Low
Combustion sensor heater temperature low, < 554 °F (290 °C).
Potential cause
Sensor housing exposed to high wind and/or extreme cold temperatures.
Recommended action
Install sensor housing flange insulator (PN 6P00162H01).
Potential cause
High noise or voltage fluctuations in power supply.
Recommended actions
1. Check power supply for line noise or voltage fluctuations.
2. Install filter power line kit (PN 6A00171G01) or high quality line filter for
input power.
9.3.27 SB Temp Low
Sample block heater temperature low, < 302 °F (150 °C).
Potential cause
Sensor housing exposed to high wind and/or extreme cold temperatures.
Recommended action
Install sensor housing flange insulator (PN 6P00162H01).
Potential cause
High noise or voltage fluctuations in power supply.
Recommended actions
1. Check power supply for line noise or voltage fluctuations.
2. Install filter power line kit (PN 6A00171G01) or high quality line filter for
input power.
9.3.28
Line Freq Error
AC power line frequency out of usable range, < 45 Hz or > 66 Hz.
Potential cause
High noise or voltage fluctuations in power supply.
Manual
Troubleshoot
00809-0500-4880 December 2022
Rosemount OCX8800A 231
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