Aprilaire Premium Digital Humidifier Control Safety And Installation Instructions Manual page 15

SYMPTOM
Humidifier or Humidifier Control "chatters" or clicks On and
Off rapidly
TROUBLESHOOTING PROCEDURE
• Check for steady 22 VAC to 30 VAC across the "R" and "C"
terminals of the Humidifier Control with a voltmeter.
• Check, with a voltmeter, that the HVAC signal across the
"W/G" and "Cf" terminals of the Humidifier Control is a
steady 22 VAC to 30 VAC.
• Make sure that the Outdoor Temperature Sensor wiring is
not running alongside other wires carrying high voltage
(120 VAC or higher). (Automatic Mode Only)
RESEARCH PRODUCTS CORPORATION
P.O. BOX 1467 • MADISON,WI 53701-1467
Call 800/334-6011 • FAX 608/257-4357
10008419 1.09
B2204686B
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