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a) Lint drawer screen is dirty.
b) Restriction in exhaust ductwork.
c. Ignitor does not spark and Direct Spark Ignition (DSI) module locks out (“red” light emitting diode
[L.E.D.] indicator light is on) ...
1) Fault in high voltage (HV) wire ... break or loose connection.
2) Failed ignitor probe assembly.
3) Failed DSI module.
G. Dryer operates but is taking too long to dry...
1. Exhaust ductwork run is too long or is undersized ... back pressure cannot exceed 0.3 inches (0.74 mb)
water column (W.C.).
2. Restriction in exhaust ...
a. Exhaust back draft damper is sticking partially closed.
b. Restriction in ductwork ... check ductwork from dryer ALL the way to the outdoors.
3. Insufficient make-up air.
4. Impellor/fan/blower (3-Phase [3Ø] Models Only) rotating in the wrong direction.
5. Lint drawer screen is dirty or is not being cleaned often enough.
6. Inadequate airflow ...
a. Impellor (fan/blower) failure.
GAS MODELS
1. Low and/or inconsistent gas pressure (Gas Models Only) ... Natural Gas pressure must be between 3.5
inches (8.7 mb) and 4.0 inches (9.9 mb) of water column, and liquid propane (L.P.) pressure must be
between 10.5 inches (26.1 mb) and 11.0 inches (27.4 mb) of water column.
2. Poor air/gas mixture (too much gas or not enough air) at burner ... yellow or poor flame pattern ...
a. Not enough make-up air.
b. Restriction in exhaust ductwork.
c. Gas pressure too high.
d. Impellor/fan/blower (3-Phase [3Ø] Models Only) rotating in the wrong direction.
e. Burner orifice size, drill material size (D.M.S.) too large for application (i.e., high elevation).