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ELECTRIC MODELS...
1. Not enough make-up air.
2. Restriction in the exhaust ductwork.
3. Lint screen is dirty or
is not being cleaned often enough.
4. Blower (impellor/fan) is rotating in the wrong direction only (for 3-phase [3ø] models only).
5. Failed electric element(s).
6. Sail switch is fluttering...
a. Restriction in the exhaust ductwork.
b. Sail switch is not adjusted properly.
STEAM MODELS...
1. Low steam supply...
a. Steam trap is too small.
b. Supply line is too small.
2. Low steam pressure.
3. Insufficient make-up air.
4. Lint screen is dirty or is not being cleaned often enough.
5. Restriction in the exhaust ductwork.
6. Dirty steam coil...
a. Fins are clogged with lint.
7. Steam damper system is not functioning properly...
a. Steam damper is sticking closed.
b. Leak in the pneumatic (air) system.
8. Extractors (washers) are not functioning properly.
9. Failed microprocessor controller (computer)...temperature calibration is inaccurate.
10. Failed microprocessor temperature sensor...calibration is inaccurate.
11. Microprocessor temperature sensor covered with lint.