6.Dryer operates, probe sparks, but gas does not flow.

A.Dryer gas shut-off valve is closed

B.Failed gas valve (open coil in valve)

C.Loose wiring connection from DSI module to gas valve (Check voltage at gas valve)

D.Failed DSI module

7.Dryer operates, probe sparks but there is no ignition even though gas is evident.

A.Gas pressure is too low...Check manifold pressure and take necessary corrective action

B.Failed gas valve

C.Ignitor probe is out of adjustment (readjust within gas flow)

D.Lint accumulation in burner tubes

8.Dryer operates but is taking too long to dry.

A.An inadequate exhaust duct work system

B.Restriction in exhaust system

C.Insufficient make-up air

D.Poor housekeeping...Dirty or clogged lint screen

E.Washing machine extractors are not performing properly

F.An exceptionally cold/humid or low barometric pressure atmosphere

G.The supply gas may have a low heating value, check with local gas supplier

H.Failed temperature sensor (temperature calibration is incorrect)

I.Failed microprocessor (computer) controller

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American Dryer Corp AD-170 service manual Dryer operates, probe sparks, but gas does not flow