Troubleshooting Tips - GE RAK147P1 Owner's Manual And Installation Instructions

Troubleshooting tips...

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Problem
No display/faint display
Keypad buttons do
not work.
Thermostat will not
call for heat.
Thermostat will not
call for cooling.
Fan does not turn on
with the system.
Possible Causes
Supply voltage not correct.
Thermostat is damaged.
Power wiring to unit is incorrect.
No power to the unit.
Thermostat is damaged.
Thermostat setpoint is satisfied. • Raise the temperature setpoint more than 2° above
Unit wiring is incorrect.
Unit is 'OFF.'
Thermostat setpoint is satisfied. • Lower the temperature setpoint more than 2°
Unit wiring is incorrect.
Unit is 'OFF.'
Short cycle delay still active.
Fan failure.
What To Do
• Using a voltmeter, check the supply voltage to the
thermostat. Voltage operating range for the thermostat
is 18-30 VAC/VDC. If measured voltage is out of this
range, troubleshoot the supply voltage to the unit.
• Replace with a new thermostat. Check the supply voltage
to the unit before connecting second thermostat (see
above).
• Refer to Figures 1 & 2 in the Installation Instructions for
correct wiring.
• Make sure the display is working correctly. If not,
follow step one above.
• Replace with a new thermostat. Check the supply
voltage to the unit before connecting second
thermostat (see above).
current temperature.
• Refer to Figures 1 & 2 in the Installation Instructions for
correct wiring.
• Make sure the FLAME icon is displayed and blinking.
If not, push the MODE button until it is displayed.
below current temperature.
• Refer to Figures 1 & 2 in the Installation Instructions for
correct wiring.
• Make sure the SNOWFLAKE icon is displayed and
blinking. If not, push the MODE button until it
is displayed.
• Wait 4 minutes. The unit's short cycle timer is in
operation.
• Place a jumper between the R and G terminals.
The fan should come on. If it does, replace the
thermostat.
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