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8
TEST EQUIPMENT
The following pieces of test equipment will be required to troubleshoot this system with
minimal time and effort.
1. HSI (Hot Surface Ignition) TROUBLESHOOTING TERMS (definitions)
a. INTERNAL CONTROL FAILURE - HSI module red L.E.D. (light emitting diode)
indicator light stays on continuously. This indicates
MANOMETER
Used to measure gas pressure in inches of water column (W.C.)
Available from ADC - Part No. 122804
MULTIMETER/VOLTMETER
For measuring voltage and/or amperage