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5. Failed Direct Spark Ignition (DSI) ignitor/flame-probe assembly.
6. Failed microprocessor controller (computer).
P. No heat (for GAS MODEL ONLY)...ignitor sparks, burner goes on and off right away...
1. DSI ignitor/flame-probe is out of adjustment...reposition closer to the flame area.
2. Sail switch is fluttering...
a. Lint screen is dirty.
b. Restriction in exhaust ductwork.
3. Insufficient make-up air.
4. Failed ignitor/flame-probe assembly.
5. Failed DSI module.
6. Failed gas valve.
Q. No heat (for STEAM MODELS ONLY)...
1. Fault in lint chamber sensor bracket hi-heat (limit) protector thermostat.
2. Failed microprocessor controller (computer).
3. No (external) compressed air to steam damper (80 PSI [5.51 bar] is required).
4. Failed steam damper 24 VAC pneumatic solenoid switch.
5. Failed piston.
6. Steam damper stuck closed.
7. Airflow control valve restricting incoming compressed air.
R. No heat (for ELECTRIC MODELS ONLY)...
1. Fault in sail switch circuit...
a. Sail switch is out of adjustment and/or faulty (failed).
b. Sail switch is not closing or fluttering...
1) Check blower motor (impellor/fan) and rotation direction.
2) Restriction in the location exhaust system.
2. Failed oven hi-limit.