Component
Alarms/Issues
Base Unit
• System does not start.
• Power LED off
Base Unit
• Poor radio reception
and Antenna
• Power LED and channel
LED blink
Thermostat
Battery icon displayed
Display T-75
Display is off
Radio transmission icon
is displayed, but the
channel status (LED on/
off) changes only if the
thermostat is close to the
antenna.
Table 10-1: Troubleshooting Solutions
Uponor Climate Co ˘ ntrol™ Zoning System Installation Guide
Causes
No voltage
Ensure base unit powered
correctly.
• Antenna mounted inside
Change the location of the
metal cabinet
antenna.
• Antenna out of position
or wire disconnected
• Interference
• Short circuit on a
• Use another channel (if an
connected actuator
unused one is remaining).
• Short circuit on the
• For replacement of the
actuator terminal/wiring
base unit, see Section 3.
error
• Thermostat batteries
• Replace the batteries.
getting low
• Batteries dead or wrong
• Replace the batteries.
type.
• Batteries installed
incorrectly.
• Transmitter working,
• Contact an installer.
but with reduced signal
• Find a new position
intensity
for thermostat and/
• New installations in the
or antenna to prevent
house create interference.
interference.
Solutions
Notes
See Installation Report to
contact an installer.
When the error is
resolved, the thermostat
screen displays the room
temperature and the battery
icon
disappears.
45
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