12 | 028-0229-05
November 2015
T
ROUBLESHOOTING GUIDE
Symptom
Possible
Cause
Corrective Action
No display on the Room
Controller
Absent or
incorrect supply
voltage
1. Check power supply voltage
between C & RC to be from 19-30
VAC
2. Check for tripped fuse or circuit
breaker
Overloaded
power
transformer
Verify that the transformer used is
powerful enough (enough VA’s) to
supply all controlled devices including
the Room Controller
Keyboard menu does not
access all functions
Keyboard
locked
Change configuration parameter
LOCKOUT to value
“0” to access all
levels of the menu
Temperature setpoints
revert to original value
after a certain time
period
Temporary
setpoint option
selected
1. The Room Controller needs to be in
Permanent setpoint mode for the
new setpoint to be kept and memory
and used all the time
2. Go to the Set temperature menu.
3. The last prompt is setpoint type. Set
it to Permanent setpoint
