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3. Low and/or inconsistent gas pressure (for Gas Models Only).
4. Insufficient make-up air.
5. Poor air/gas mixture at burner - yellow or poor flame pattern...adjust gas burner air adjustment shutters (for
Gas Models Only).
6. Lint drawer/screen is not being cleaned on a regular basis or often enough.
7. Extractors (washer) is 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 225º F (107º C) 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 250 lbs (113.40 kg) for maximum
drying efficiency.
U. Dryer stops during cycle, microprocessor controller (computer) displays “FILL” and keyboard
(touchpad) is locked out with “HEATER FAULT” reset button flashing...
1. Dryer is in “HEATER FAULT” ...
a. Only one of the burners are igniting ...
1) Defective gas valve
2) Faulty Direct Spark Ignition (DSI) module.
b. Gas valve status relays have a broken connection between relays and gas valves or relays and Programmable
Logic Controller (PLC).
c. Broken connection between Programmable Logic Controller (PLC) to heat or status relay.
V. Excessive noise and vibration...
1. Dryer is not leveled properly.
2. Impellor (fan/blower) out of balance ...