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If You Have A Problem - Honeywell CT3611 Owner's Manual

Seven day programmable heat pump low voltage (20 to 30 vac) thermostat and wallplate
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IF YOU HAVE A PROBLEM

If...
Display does not appear.
Temperature settings will not change
(example; cannot set the heating higher
or the cooling lower).
Heating does not come on.
Cooling does not come on.
System on indicator(
cool) is lit, but no warm or cool air is
coming from the registers.
69-1081—3
Table 3. Solution Guide.
Make sure the thermostat is mounted and latched on the wall plate.
Mount and latch the thermostat on the wallplate if it is not.
Make sure terminal C is connected to the system transformer common.
Make sure circuit breaker is not tripped—reset the circuit breaker.
Make sure the wiring between the thermostat and HVAC equipment has
no broken wires—replace any broken wires.
Make sure the temperature setpoints are:
40 to 90°F (4.5 to 32°C) for heating.
45 to 99°F (7 to 35°C) for cooling.
Make sure the heating setpoint is above the room temperature.
Make sure the circuit breaker is not tripped, and reset it if necessary.
Make sure the power switch at the equipment is in the On position, and
set it to On if it is in the Off position.
Wait five minutes for the system to respond.
Set the system switch to Heat.
Make sure the cooling setpoint is below the room temperature.
Make sure the circuit breaker is not tripped, and reset it if necessary.
Make sure the system switch at the air conditioner is in the On position,
and set it to On if it is in the Off position.
Wait five minutes for the system to respond.
Set the system switch to Cool.
Wait five minutes after seeing the flame or snowflake and check the
= heat,
=
registers again. If no there is no hot or cool air coming from the registers,
refer to Heating does not come on or Cooling does not come on. If all of this
has been checked, contact your local heating and cooling contractor.
Then...
18

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