When I select a cycle, but before starting it, I note that both the DRY and COOLING status indicators are lit. After starting the cycle the DRY indicator blinks and the COOLING indicator stays lit. I never hear the burner light. Dryer was last used yesterday when the wife noted the second load did not seem to dry correctly.

Does this indicate a specific fault, or should I just start down the testing path of flame sensor, igniter, high-limit switch etc?

Thanks,
PW

Simon,
Finally had time to take it apart and test.

Findings:
Igniter: ~200 ohms
Thermostat and high-limit thermostat: ~20 ohms each
Gas valve coils: ~1900 ohms each

FLAME SENSOR: a big fat OPEN - infinite ohms

I noticed when I removed the flame sensor that it rattled.
I don't think it should rattle, but I've never shaken one before.

OK - off to order a flame sensor.

My wife is not happy that a relativey new dryer (about 18 months)
already needs to be repaired!!!

PW