Honeywell MAGICSTAT 3355 Owner's Manual page 34

Cooling will not come on.
(Continued)
The house is too warm or too cool.
SYSTEM ON indicator is lit, but no
heat is coming from the registers.
If temperature setting is lower than the current
temperature, and the display shows COOL, move the
system switch from COOL to OFF for ten minutes. After
ten minutes, return the switch to the COOL position. If the
air conditioner comes on, compressor may have reached
its high limit temperature protection and shut down. If the
air conditioner does not come on after the ten minutes and
the display shows COOL, contact Honeywell Customer
Assistance at 1-800-468-1502.
If 2- or 4-wire installation, verify R-Rc jumper is installed.
Press PRESENT SETTING key to check the current
temperature setting.
If desired, change the temperature setting. See page 16.
Allow time for the furnace to heat up and the fan to come
on before checking for heat at the register. (Check to
make sure system on-time is set correctly according to
page 18 and 19.)
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69-1012