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