Honeywell MagicStat 28 Programming And Installation Instructions page 33

The house is too warm or too cool.
SYSTEM ON indicator is lit, but no
heat is coming from the registers.
Make sure outdoor disconnect is engaged (on).
If temperature setting is lower than current tempera-
ture, and SYSTEM ON indicator is lit, move system
switch from COOL to OFF for 10 minutes. After 10 min-
utes, return switch to COOL position. If air conditioner
comes on, compressor may have reached its high
limit temperature protection and shut down. If air
conditioner does not come on after the ten minutes
and the SYSTEM ON indicator is lit, contact
Honeywell Consumer Services at 1-800-468-1502
If 2- or 4-wire installation, verify that R-Rc jumper is
installed.
Press RUN PROGRAM key to check the current
temperature setting.
If desired, change the temperature setting. See
page 14.
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 pages 16 and 17.)
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