HAMPTON BAY HB-7611-02 Guía Para El Uso Y Cuidado página 10

Troubleshooting - Wired Doorbell
Problem Possible Cause
The doorbell does
not sound.
The doorbell
sounds but does
not play the entire
tune or the "TUNE"
button does not
work.
The transformer may
not be working properly.
The push button may
not be working properly.
The doorbell may not be
working properly.
The push button diode
is not installed cor-
rectly or is not working
properly.
The transformer may
not be working properly.
Solution
Test transformer voltage output with a volt meter. Set
the volt meter to read A/C voltage. Voltage should read
between 18 - 22 volts A/C on the low voltage side of the
transformer when the doorbell is NOT playing. If the volt
meter reads below 18 volts, replace the transformer.
Remove the push button that is not working from the
door frame. Disconnect the wires from the terminals and
touch the bare wires together. If the doorbell sounds, the
push button is defective. Replace the push button.
Disconnect the wire from the terminal marked "TRANS".
While someone presses the push button at the front
door, quickly touch the "TRANS" wire to the terminal
marked "FRONT". You will see a small spark if the push
button, wiring, and transformer are operating properly.
Repeat the steps for the "REAR" terminal and the rear
push button. If the wiring between the transformer and
the push button(s) checks out properly, replace the
doorbell.
Verify the diode is attached securely to the main push
button; see step 5 under Installation - Wired Doorbell.
The doorbell may not function properly if a diode is
installed on more than one push button. Note: Some
push buttons have a pre-installed diode. An additional
diode should not be installed if the push button has a
pre-installed diode. If the musical tune still does not
sound completely, replace the diode (Type 1N4001-50V-
1A, available at a local electrical component supplier).
If the diode is connected to the "FRONT" door push
button and the doorbell does play the entire tune,
the doorbell is not receiving enough power from the
transformer. Test the transformer voltage output with a
volt meter. Set volt meter to read A/C voltage. The volt-
age should read between 18 - 22 volts A/C on the low
voltage side of the transformer when the doorbell is NOT
playing. If the volt meter reads below 18 volts, replace
the transformer.
10