White Rodgers 1F85RF-275 Przewodnik Instalacji Pobierz pdf (Strona 19)

Possible Cause

1. Improper system sizing or improper

heating and cooling distribution

between areas.

2. An uneven change in occupancy

level, sun load or conditioned space

activities (cooking, washing dishes,

showers, etc.) between the areas.

1. Possible short in wiring.

2. Possible short in thermostat.

3. Possible short in heat/cool/fan

system.

4. FAN Switch set to Fan ON.

1. The location of the thermostat and/or

the size of the Heating System may

be influencing the cycle rate.

1. Thermostat thermometer setting

requires adjustment.

1. Voltage spike or static discharge.

1. The desired setpoint conflicts with the

setpoint of the COOL mode.

1. The desired setpoint conflicts with the

setpoint of the HEAT mode.

Symptom

Temperature Difference

between Thermostat

and Remote Location

Heat, Cool or Fan

Runs Constantly

Furnace

(Air Conditioner)

Cycles Too Fast

or Too Slow (narrow or

wide temperature swing)

Thermostat Setting &

Thermostat Thermometer

Disagree

Blank Display and/or

Keypad Not Responding

Heat Setpoint will

not Respond to the

Temperature Up Key

Cool Setpoint will

not Respond to the

Temperature Down Key

Forgot Keypad

Lockout Code

Why won't my 2nd or

3rd stage come on?

Corrective Action

Selecting a high or low priority for the thermostat or

sensor location during program periods can help even out

minor temperature imbalances between the thermostat

and remote sensor locations. This is also useful for

scheduled or predictable events like occupancy level or

sun load during particular times of the day. If the tempera-

ture difference remains large after assigning priorities,

system modification or zoning may be necessary to

balance the temperature distribution.

Check each wire connection to verify they are not shorted

or touching together. No bare wire should stick out from

under terminal screws. Try resetting the thermostat as

described above. If the condition persists the manufac-

turer of your system or service person can instruct you

on how to test the Heat/Cool system for correct operation.

If the system operates correctly, replace the thermostat.

Digital thermostats normally provide precise temperature

control and may cycle faster than some older mechanical

models. A faster cycle rate means the unit turns on and

off more frequently but runs for a shorter time so there is

no increase in energy use. If you would like to increase

the cycle time, choose SL for slow cycle in the menu,

step 4. If an acceptable cycle rate is not achieved as

received or by choosing slow cycle, contact a local

service person for additional suggestions.

The thermometer can be adjusted +/- 3 degrees. See

Temperature Display Adjustment in the Configuration

Menu section.

Use the Reset Operation at top of previous page.

Change system mode to COOL. Raise the Cool setpoint.

Return to HEAT mode and set desired temperature.

Change system mode to HEAT. Lower the Heat setpoint.

Return to COOL mode and set desired temperature.

With the thermostat in any mode, press and at the

same time to enter the configuration menu at the point

where the lockout code is to be entered. Press and

and SYSTEM button at the same time to reset the lockout

code, unlock the keypad.

Your thermostat is designed to determine the optimum

time to activate the second stage. Simply raising the

temperature in heating or lowering it in cooling will not

always force the thermostat to bring the second stage on

quickly. There is a time delay from 0-30 minutes depend-

ing on the performance of the first stage of the system.

TROUBLESHOOTING

Communication Problem Solving

Problem solving steps are assuming that the thermostat and wireless remote sensor are together as a kit and are set up at the factory to

operate together. If a thermostat or sensor is being replaced the thermostat and sensor must have Learning Mode, or binding, run to associate

the sensor with the thermostat. See Learn Mode Option on page 11 of Installation Instruction.

Symptom

No Communication

between Sensor and

Thermostat

Possible Cause

Antenna wire installed improperly

24VAC not being provided

Configuration Menu items changed that

prevent communication.

Corrective Action

Antenna wire must be installed into the wall

Check thermostat wiring and RC/PS switch position. If

terminal C has a wire connected, RC/PS switch must be

in RC position, if terminal C does not have a wire

connected, RC/PS switch must be in PS position.

Reset thermostat by pressing , , and SYSTEM keys

at the same time. Be sure that thermostat has remote

enabled. Begin Learn mode on remote sensor. Begin

Learn mode on thermostat. Thermostat will indicate LER

and OK within one minute.

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