Troubleshooting Charts
Some manufacturers include troubleshooting charts in their furnace manuals. A typical gas furnace troubleshooting chart for a Thermo Pride gas furnace (Thermo Products, LLC) is illustrated in Figure 11-52. These troubleshooting charts are organized in a yes/no for- mat, guiding the technician through a list of steps that eventually leads to the specific operating problem and its remedy.
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