Manual# I27028 ii Rev. 2 – 11/22/2017
CHAPTER 8 - TROUBLESHOOTING ............................................................................................. 7-1
7.1 Troubleshooting Guide ......................................................................................................... 7-2
7.2 Checking the Power Distribution System ............................................................................. 7-5
7.3 Checking the Heating Elements ........................................................................................... 7-5
7.4 Checking the Gas Modulation Valve .................................................................................... 7-6
7.5 Checking the Airflow Switch ................................................................................................. 7-6
7.6 Checking the High Temperature Limit Switch ...................................................................... 7-6
7.7 Checking the Flame Rod Sensor ......................................................................................... 7-7
7.8 Checking the Humidistat (Optional) ..................................................................................... 7-7
7.9 Checking the Thermocouples .............................................................................................. 7-7
7.10 Troubleshooting Using the PLC ........................................................................................... 7-7
7.11 Terminal Block Wiring Instructions ..................................................................................... 7-10
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