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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)
HSI M odule Ente rs
Internal Routine Check
L.E.D. Indicator
Stays On Approx. 4 Seconds
Hot Surface Ignitor
Starts
To
Gl ow
If L.E.D. Indicator
Stays On Continuously
Replace HSI Module
If L.E.D. Continuously
Blinks Twice in Succession
There Is a Fault In The
Heat Sensing Circuit
Approx. 4 Seconds Later
Gas Valve Opens
Approx. 4 Seconds Later
Hot Surface Ignitor Shuts Off
Ignition Evident?
(FLAME VERIFIED)
-- ---- -- -- ---- -- ----
YES NO
Normal Heating Cycle
Flame Out
FLAME NOT VERIFIED
HSI Module Will Wait 15-17 Seconds
And Then Go Into Retry Mode
HSI Module Will Attempt To Retry 3 Times
Flame Not
Established
After Retrys
HSI Module LOCKOUT
-------------------------- ------
Module L.E.D. Will Continuously
Blink 3 Times In Succession
Computer
Calls
For Heat
Open and Close Main Door
Restart Dryer
HSI Module Will Wait 15-17 Seconds
And Then Go Into Retry Mode
HSI Module Will Attempt To Retry Twice