Novar Savvy Service Manual - page 11
DOC. #TD-0240 11/30/06
11
Savvy
®
Service Manual
NO
YES
If voltage is incorrect with wires connected
to the terminals & correct with wires
disconnected from terminals
NO
YES
Meter
Terminals 60 to 61 and 62 to
61 with the wires connected and again
with the wires disconnected:
With the wires connected:
Terminals 60 to 61 should be 2.7 VDC
Terminals 62 to 61 should be 18.2 VDC
With the wires disconnected:
Terminals 60 to 61 should be 0.0 VDC
Terminals 62 to 61 should be 18.0 VDC
Savvy
Outdoor Temperature Sensor Faults
Troubleshooting Chart
Reconnect the wires at the
disconnect the
wires from the Outdoor Temperature Sensor, and
meter the wires.
– to shield should be 0.0 VDC
+ to shield should be 18.0 VDC
Is the voltage correct?
Savvy,
Use the HOA switch to put the lights in
override, power off the
lift the
electronics assembly off its base,
and meters Terminals 60 to 61 and 62 to
61 for Ohms.
Are the terminals shorted?
Savvy,
Savvy
Replace the Outdoor
Temperature Sensor.
The wire is bad.
Trace and repair it.
Replace the
base and
electronics assembly and
make sure the replacements
operate properly.
Savvy
Replace the
and
make sure the replacement
operates properly.
Savvy
If voltage is incorrect both with wires connected
to & disconnected from the terminals
NOTE! The sensor is polarity-sensitive and
will read open fault if the polarity is not
correct. The LED is not polarity-sensitive; it
indicates power is present.