Maytag MDG-30 - Manual (Page 44)

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a. Lint screen dirty.
b. Restriction in exhaust duct work.
3. Insufficient makeup air.
4. Failed ignitor and flame-probe assembly.
5. Failed Direct Spark Ignition (DSI) module.
6. Failed gas valve.
N. Heating unit is not operating (no heat) and heat indicator dot is on
1. Fault in sail switch circuit
a. Sail switch is out of adjustment or has failed.
b. Sail switch damper is not closing or is fluttering
1) Lint screen is dirty.
2) Restriction in exhaust.
2. Fault in burner hi-limit circuit or thermostat.
3. Fault in lint chamber sensor bracket hi-heat protector thermostat.
4. Failed Direct Spark Ignition (DSI) module.
5. Failed DSI (Direct Spark Ignition) ignitor and flame-probe assembly.
6. Failed microprocessor controller (computer).
O. Dryer operates but is taking too long to dry
1. Exhaust duct work run too long or is undersized, back pressure cannot exceed .3 inches water column
(W.C.).
2. Restriction in exhaust
a. Exhaust back draft damper is sticking partially closed.
b. Restriction in duct work, check duct work from dryer all the way to the outdoors.
3. Low or inconsistent gas pressure.
4. Insufficient makeup air.
5. Poor air and gas mixture at burner, yellow or poor flame pattern; adjust gas burner air adjustment shut
ters.