Robertshaw SENSE SMART 2000 - LOCKED Appears; No Heating;Cooling; Thermostat No Display

41
Symptom Problem Solution
LOCKEDappears
on LCD and
heangorcooling
will not operate.
This is not a fault.
Outside air temperature too high
torequireheang.
Outside air temperature too low
to require cooling.
Heangand/orcoolingdisabled
toconserveenergy.Theheang
orcoolingfunconcanbe
disabled when the outside
temperature is warm or cool
enough to not warrant the use of
the A/C system.
Fan speed
changes
frequently.
This may not be a fault. Your thermostat is choosing the
mostenergyecientfanspeed
forthecurrentcondions.
Tryselecngaspeedmanually
withthefanbuon.
Thermostat has
no display.
Checkaircondioningmainfuse. Reset home fuse.
Call Technical Services.
Faultywiring,fuseorthermostat. Call Technical Services.