f.The Hot Surface Ignitor will turn on and after approximately four (4) seconds the Hot Surface Ignitor will shut off. The Gas Valve will be energized and a burner flame should be evident for approximately severn (7) seconds and then shut off.
g.The HSI Module will attempt two (2) additional ignition trials after which the HSI Module will LOCKOUT and the “red” indicator light will flash 3 blinks, wait one (1) second, and then keep flashing 3 blinks continuously until the HSI Module is reset manually.
h.Functional check of the HSI (Hot Surface Ignition) Module is complete.
2.HSI SYSTEM OPERATION (Flow Chart)
Hot Surface Ignitor
Starts
To
Glow
HSI Module Enters
Internal Routine Check
L.E.D. Indicator
Stays On Approx. 4 Seconds
Computer
Calls
For Heat
If L.E.D. Indicator
If L.E.D. Continuously
Blinks Twice in Succession
Stays On Continuously
There Is a Fault In The
Replace HSI Module
Heat Sensing Circuit
Approx. 4 Seconds Later
Gas Valve Opens
Approx. 4 Seconds Later Hot Surface Ignitor Shuts Off
Ignition Evident?
(FLAME VERIF IED)
YES NO
Open and Close Main Door
Restart Dryer
HSI Module LOCKOUT
Module L.E.D. Will Continuously
Blink 3 Times In Succession
| HSI Module Will Wait |
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| Flame Not | ||
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| And Then Go Into Retry Mode |
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| Established | ||
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| HSI Module Will Attempt To Retry Twice |
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| After Retrys | ||
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Normal Heating Cycle
Flame Out
FLAM E NOT VERIFIED
HSI Module Will Wait
HSI Module Will Attempt To Retry 3 Times
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