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I. No heat)...no voltage at heating unit (i.e., Gas Model - Hot Surface Ignition [HSI] module,
Electric Model - electric oven contactor, or Steam Model - steam damper system pneumatic
solenoid)...
GAS MODELS ...
1. Fault in hot surface ignition system ...
a. Hot surface ignitor glows but no ignition and HSI module "LOCKS-OUT" ("red" L.E.D. [light
emitting diode] indicator flashes) ...
1) Flame probe assembly is out of adjustment or has failed.
2) Severe air turbulence.
3) Failed HSI module.
4) Failed gas valve.
b. Hot surface ignitor glows, but burner goes off right away ...
1) Flame probe assembly is out of adjustment or has failed.
2) Sail switch is fluttering ...
a) Lint screen is dirty.
b) Restriction in exhaust duct work.
c. Hot surface ignitor does not glow and HSI module "LOCKS-OUT" ("red" L.E.D. indicator
flashes)...
1) Fault in hot surface ignitor wiring...break or loose connection.
2) Failed hot surface ignitor.
3) Failed HSI module.
ELECTRIC MODELS ...
1. Failed oven contactor/coil.
2. Failed electric heating element(s).
STEAM MODELS ...
1. Air Operated System...
a. No (external) compressed air (80 PSI required) to steam damper solenoid.
b. Failed steam damper pneumatic solenoid.
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