Sierra Products EasyFire B manual Battery Operation Troubleshooting, Quick Testing

Battery Operation Troubleshooting -

Battery operation requires a fully charge 12VDC battery capable of sustained 2 amp/hr. loads while maintaining a

m inim um of 11.2 VDC. This voltage is required for proper system operation. Most battery operation problem s can be traced to a battery in pour condition.

Quick Testing

Rem ove battery from heater and charge overnight with autom otive type battery charger. Test battery with autom otive load tester. Replace if required. Testing connections from term inals on rear of heater back to the harness. If all connects are secure a m ain control board will be required.

Additional detailed inform ation is contained in the installation and repair m anuals. Please refer to these for in depth troubleshooting guides and harness replacem ent.

Component Adjustments and Replacement:

Main Control Board - Main control board is located in the lower right pedestal (3801/5001) or lower right rear - 4001 insert and right switch plate for the 5001U. The control board is held in place with several phillips screws.

Fan speed adjustm ents are accom plished by turning the LOW and HIGH fan pots on the lower right corner. These adjustm ents are made in the corresponding run mode. Factory settings are based on fan voltage as read across the m otor term inals 6.8VDC LOW , and 9.0VDC HIGH.

A GREEN LED light flashes on the control board to confirm AC or DC power is present.

Switch Board - Switch board is attached to access panel with several phillips screws. Harness plugs into bottom of switch.

Sensors - Access for sensors is through the rear panels or T-2 through the switch panel on freestanding units. Both the T-1 and T-2 sensors are the sam e sensor type mounted differently. T-1 is mounted on the exhaust side of the com bustion fan housing. It is held in place with a tie wrap. T-1 sensor allows for cabinet air to drawn through the high tem p plastic holder. W hen door is open or flue blocks the flow reverses. T-2 sensor is attach to a alum inum block and attached to the manifold. W ire harness connections should be secure and not pulled tight.

Additional inform ation is available on line@ www.sierraproductsinc.net/pages/custom er_service

Technical Custom er Service - 909-399-3355x29

P/N 140814 EF B Model TS February 2009

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