Honeywell Electronic Programmable Thermostat User Manual
Page 13
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Heating will not come on.
■
Check the system fuse or circuit breaker and replace or
(Continued)
reset, if necessary.
■
If display is blank or displays
bAt Lo, install fresh
batteries.
■
If temperature setting is higher than current temperature,
and SYSTEM ON indicator is lit, contact your local
dealer.
Cooling will not come on.
■
Check that switch on thermostat is set to COOL. Allow a
minimum of five minutes for time-guard protection to
expire.
■
Check the system fuse or circuit breaker and replace or
reset, if necessary.
■
If display is blank or displays
bAt Lo, install fresh
batteries.
■
The thermostat has a built-in time delay on cooling. Allow
at least five minutes after changing the setting before the
air conditioner starts.
■
Make sure outdoor disconnect is engaged (on).