30
Heating will not come on
(continued)
. ■ Check the system fuse or circuit breaker and replace
or reset if necessary.
■ Check for correct wiring and good connections.
■ Jumper wires R and W. If heat does not come on,
contact your heating dealer.
■ If display is blank or says "bAt Lo," install fresh
batteries.
■ If temperature setting is higher than current tempera-
ture, and SYSTEM ON indicator is lit, contact
Honeywell Customer Assistance at 1-800-468-1502.
Cooling will not come on. ■ Check that switch on thermostat is set to COOL.
■ Check the system fuse or circuit breaker and replace
or reset if necessary.
■ Check for correct wiring and good connections.
■ Jumper wires Rc and Y. If cooling does not come on,
contact your cooling dealer.
■ If display is blank or says "bAt Lo," install fresh
batteries.
■ The thermostat has a built-in time delay on cooling.
Allow five to ten minutes after changing the setting
before the air conditioner starts.
■ 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.
The house is too warm or too cool. ■ Press RUN PROGRAM key to check the current
temperature setting.
■ If desired, change the temperature setting. See
page 14.
SYSTEM ON indicator is lit, but no ■ Allow time for the furnace to heat up and the fan to
heat is coming from the registers. 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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