GE RAK148P1 Manuel D’Utilisation

Troubleshooting tips.

No display

Check for 24 VAC at thermostat; display
is blank when 24 VAC is not present.

System fan does not

Verify that wiring is correct.

come on properly

All thermostat buttons

Verify that 24 VAC is present; unit

are inoperative

locks out when 24 VAC is not present.

Thermostat turns on and

Adjust temperature differential (see

off too frequently

Setting a New Temperature Differential).

Program schedule activates Check time (AM/PM) set on
at the wrong time

thermostat (see Programming).

Thermostat does not

Verify that it is in Program mode; PROG

follow program

displays solid; check time (AM/PM);
check if in Hold mode (PROG flashing).

“PROG” flashes

Press Hold button to remove from

(in Hold mode)

Hold mode.

Fan runs continuously

Check Fan Auto/On switch. If set to
ON position, fan will run continuously.

Room temperature is

Verify that wall hole is plugged

not correct

with putty or insulation.

Compressor doesn’t run

There is a 3 minute time delay and a

or turn off immediately

3 minute minimum run time for the

when changing function

compressor when it turns on/off.

or setting

Fan doesn’t run or turn off

This is normal. On some models, the

immediately when changing fan may have a 3 minute minimum
function or setting

run time/off time delay.

“LO bat” displays on screen

Replace batteries with 2 fresh “AA”
alkaline batteries.

Display reads “12:00 PM”

Set clock/time.

Problem not listed above

Press the Reset button once. Reset
button function: time, day and mode
changed to last saved settings (saved
after power loss or when exiting
program setup; configuration and
program settings are unchanged).

Problem

Solution