Honeywell T8601D 사용자 설명서

69-1410—2    G.H.  12-02 

www.honeywell.com/yourhome

Honeywell

Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North

35 Dynamic Drive

Golden Valley, MN  55422

Scarborough, Ontario
M1V 4Z9

a

Select models.

Cooling does not 
come on.

No power to the thermostat. • Check that C terminal is connected to the system transformer.

• Check for 24 Vac between R and W terminals.

—If missing 24 Vac:

—

check if the circuit breaker is tripped—reset the circuit 
breaker.

—

check if the system fuse is blown—replace the fuse.

—

check if the power switch on the HVAC equipment is in 
the Off position—set to the On position.

—

check wiring between thermostat and HVAC equipment—
replace any broken wires and tighten any loose connec-
tions.

—If 24 Vac is present, proceed with troubleshooting.

Thermostat minimum off 
time is activated.

• Wait up to five minutes for the system to respond.
• Enter Installer Setup number 33. Reconfigure minimum off time (if 

required).

System selection is not set 
to Cool.

Set system selection to Cool.

Cool setpoint is above 
room temperature.

Check cooling setpoint. Set cooling setpoint to desired temperature.

System on 
indicator 
(flame=heat, 
snowflake=cool) 
is displayed, but 
no warm or cool 
air is coming from 
the registers.

Fan operation set for 0 
(conventional heat) when it 
should be set for 1 (electric 
heat).

Enter Installer Setup number 2 and reconfigure the fan operation.

Conventional heating 
equipment turns on the fan 
when the furnace has 
warmed up to a setpoint.

Wait a minute after seeing the on indicator and then check the 
registers.

Heating or cooling 
equipment is not operating

Verify operation of heating or cooling equipment in self-test.

Outdoor 
temperature not 
displayed.

a

Option not activated.

Enter Installer Setup number 24 and set to 1.Thermostat must have 
OT terminals and a C7089B1000 installed.

Outdoor 
temperature 
display is 
incorrect.

a

 

Outdoor temperature 
sensor is connected 
incorrectly.

Refer to C7089B1000 Outdoor Temperature Sensor Installation 
Instructions and check wiring between the thermostat and sensor.

Wrong sensor.

Replace sensor with C7089B1000 Sensor.