American Standard 340 Thermostat User Manual


 
22
Pub. No. 12-5026-01
69-1609
Symptom Possible Cause Action
System on indicator
and is lit, but
no warm or cool air
is coming from the
registers.
Heating/cooling
equipment turns on
the fan when the
equipment has
reached the
setpoint.
Wait a minute after seeing the flame or
snowflake and then check the registers.
System on indicator
or is flashing
Minimum off timer is
in effect.
Wait five minutes until the minimum off timer
is complete.
Troubleshooting (Contiuned)