American Dryer Corp. Hot Surface Ignition System ADG-530 - Manual (Page 10)

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 there is a system fault and most likely the fault is the HSI
Module itself.
b. HSI MODULE “RED” L.E.D INDICATOR LIGHT - this light is located on the top left side of the
HSI Module (refer to the illustration on page 2 or page 5 of this manual). This DIAGNOSTIC
INDICATOR simplifies the operational and troubleshooting procedures of the system.
c. FLAMEOUT - burner flame shut down by the HSI Module due to lack of flame verification. This
condition occurs only after ignition has been evident but is lost. The HSI system will immediately
attempt to relight the burner for a total of three (3) times before going into LOCKOUT. Once in the
LOCKOUT MODE the HSI Module must be reset manually.
d. TRIAL FOR IGNITION (T.F.I.) - the period after the Hot Surface Ignitor shuts off and before the
gas ignites.
e. LOCKOUT - when the flame is lost or the gas is not ignited after three (3) tries. The “red” L.E.D.
(light emitting diode) indicator light flashes 3 blinks (i.e., LOCKOUT) continuously until the HSI
Module is reset manually.
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