Troubleshooting Tips - GE RAK148P2 Owner's Manual & Installation Instructions

Troubleshooting tips.

Problem
No display
System fan does not
come on properly
All thermostat buttons
are inoperative
Thermostat turns on and
off too frequently
Program schedule activates Check time (AM/PM) set on
at the wrong time
Thermostat does not
follow program
"PROG" flashes
(in Hold mode)
Fan runs continuously
Room temperature is
not correct
Compressor doesn't run
or turn off immediately
when changing function
or setting
Fan doesn't run or turn off
immediately when changing fan may have a minimum run time/
function or setting
" " displays on screen
20
Solution
Check for 24 VAC at thermostat and
batteries; display is blank when 24 VAC
is not present and batteries are bad.
Verify that wiring is correct.
Verify that 24 VAC is present; unit will not
operate when 24 VAC is not present.
Adjust temperature differential (see
Configuration Mode - Setting
Temperature Differential, Stage 1
and Stage 2 sections).
thermostat (see Programming).
Verify that it is in Program mode; PROG
displays solid; check time (AM/PM);
check if in Hold mode (PROG flashing).
Press Hold button to remove from
Hold mode.
Check Fan Auto/On switch. If set to
ON position, fan will run continuously.
Verify that wall hole is plugged with
putty or insulation to prevent airflow
from the wall cavity.
Adjust Temperature Offset (see
Configuration Mode - Room
temperature offset section).
There is a 3 minute time delay and a
3 minute minimum run time for the
compressor when it turns on/off.
This is normal. On some models, the
off time delay.
Replace batteries with 2 fresh "AAA"
alkaline batteries.