GE RAK148P1 User Manual download pdf (Page 20)

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

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GE RAK148P1 User Manual Page 20