All installations and services must be performed by qualified service personnel.
FILTER MAINTENANCE PROCEDURE
The filter is located inside front door of the CMA. Remove filter retaining rod and remove dirty filter. Clean the filter by vacuuming, rinsing with tap water, hosing or dipping in an ordinary detergent solution. After cleaning, replace the completely dry filter and retain with retaining rod. If the filter has a mesh, the mesh side of the filter must be towards the furnace.
FILTER REPLACEMENT
Should the filter require replacement, replace with like size and type filter as originally supplied with furnace.
IMPORTANT: Remind homeowner of importance of monthly filter inspections during the heating season to ensure efficient and
VIII. TROUBLESHOOTING
NOTICE: BEFORE TROUBLESHOOTING, FAMILIARIZE YOURSELF WITH THE START UP AND CHECKOUT PROCEDURE.
ALL INSTALLATION AND SERVICES MUST BE PERFORMED BY QUALIFIED HEATING CONTRACTORS.
To assist you in troubleshooting this furnace, it is equipped with an integrated ignition control with diagnostics. These diagnostics evaluate what control system has experienced a failure and will activate a flashing light on the control in different sequences to help pinpoint the failure which has occurred.
Note – check diagnostic code through view port prior to removing access door.
DIAGNOSTIC FEATURES
The 50A65 control used on this furnace continuously monitors its operation and the operation of the system. If a failure occurs, the LED light on the control will flash a code. If the failure is internal to the control, the light will stay on continuously.
In this case, the entire control should be replaced, as the control is not field- repairable.
If the sensed failure is in the system (external to the control), the LED will flash in the following
1 flash, then pause | system locked |
2 flashes, then pause | pressure switch stuck closed |
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