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XI. Basic Service and Troubleshooting
11.5 Filter Change Indicator Light Flashing
If the unit is properly functioning and the Filter Change indicator light is flashing,
the default filter change timer has expired, and the filter should be replaced.
Possible Cause
Solution
Filter change cycle timer expired
Replace filter and reset timer
11.6 Fan Speed Cycle Error
If the unit does not properly cycle through all three (3) fan speed settings, or
the unit shuts off when cycling through the fan speed settings, the issue may
be the result of one of the following causes.
Contact the manufacturer for the Control Panel reset instructions. If that does
not resolve the issue, the unit will require service by the manufacturer or a
professionally licensed electrician.
Possible Cause
Solution
Control Panel program error
Control Panel reset procedure
Display Board malfunction
Replace Display Board
