Carrier EACA Specifications download pdf (Page 26)

TROUBLESHOOTING

CAUTION:

• These procedures should only be attempted by a qualified HVAC

technician or electrician.

• Risk of personal injury could occur by attempting to troubleshoot or

repair this unit by untrained persons.

• Exercise the usual precautions when working with high voltage.

• When the circuit has been de-energized, always discharge any

residual current in the secondary with an insulated handle

screwdriver.

• Always ground power supply and ionizing-collecting cell when

bench testing.

Recommended Service Tools

Indication of Electrical Trouble

• Screwdriver, 8" common with insulated handle (plastic)

• Screwdrivers Phillips #1 and #2 with plastic insulated handles

• Needle nose pliers

• Multimeter

• High voltage probe

The air cleaner is equipped with a Red CELL ENERGIZED light for indicating

proper unit operation. When the unit is in normal operation (with the HVAC

system fan running, access door in place and rocker switch in the ON

position) and the Red CELL ENERGIZED light is not lit, the problem is a

shorted secondary. Although failure of the indicating light itself should not

be overlooked, this condition is unusual and rather remote.

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Carrier EACA Specifications Page 26