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4. Insufficient make-up air.
5. Poor air/gas mixture at burner - yellow or poor flame pattern... Burner orifices not aligned properly in
burner tubes (for GAS MODELS ONLY)
6. Lint drawer/screen is not being cleaned on a regular basis or often enough.
7. Extractors (washer) not performing properly.
8. Sail switch is fluttering... restriction in exhaust (for GAS MODELS ONLY).
9. Failed microprocessor controller (computer)... temperature calibration is inaccurate.
10. Failed microprocessor temperature sensor... calibration is inaccurate.
11. Failed burner hi-limit (for GAS MODELS ONLY).
12. Failed 225° hi-limit (thermostat).
13. Steam damper system is not functioning properly (for STEAM DRYER ONLY) ...
a. Steam damper sticking closed.
b. Leak in pneumatic system.
14. Undersized load, dryer requires a minimum load size of approximately 125 lbs for maximum
drying efficiency.
U. Excessive noise and vibration...
1. Dryer is not leveled properly.
2. Impellor (fan and blower) out of balance ...
a. Excessive lint build up on impellor (fan and blower)... check air jet.
b. Failed impellor (fan and blower).
3. Loose motor mount.
4. Failed idler bearings or tumbler bearings.
5. V-belts either too tight or too loose.
6. Tumbler (basket) drive wheels are worn or are loose.
7. Set screws of tumbler drive shaft bearings are loose.
8. Failed motor bearing.
9. Drive wheel trantorque is loose.