King Electric F802GFCI Electronic Programmable - Manual (Page 6)

6
PROBLEM SOLUTION
Thermostat works but no heat
from the system
1. Check wiring connections
2. If GFCI is tripped, reset thermostat with on/standby switch.
3. Check resistance on floor warming system, see floor heating system manual.
No display
1. Check wiring connections
2. Check circuit breaker or other protection "upstream" of thermostat
GFCI is tripped
1. Check wiring connections
2. Reset thermostat by switching On/Standby.
3. Check resistance of the floor heating system, see floor heat system manual.
Heating occurs at wrong times 1. Check that the current time and schedule time are properly set to AM or PM.
Er 1 (Only at start up) Floor sensor not correct type or out of range. Check floor sensor resistance.
Er2 Floor sensor short-circuited. Check or replace sensor
Er3
Floor sensor not attached and thermostat in floor heating control mode, connect
the sensor
Er4 Er5 Internal sensor is faulty. Replace thermostat or switch to floor sense mode
SAVE THESE INSTRUCTIONS
TROUBLESHOOTING
KING ELECTRIC MFG CO · 9131 10TH AVENUE SOUTH · SEATTLE, WA 98108 · PH:206 762 0400 · FAX: 206 763 7738 · www.king-electric.com
DANGER
! !
ELECTRIC SHOCK OR FIRE HAZARD
READ ALL WIRE SIZING, VOLTAGE REQUIREMENTS AND
SAFETY DATA TO AVOID PROPERTY DAMAGE AND
This thermostat is designed with a Ground Fault Circuit Interrupt (GFCI) that cuts power to the floor heat if
current leak to ground occurs. A red light on the side will illuminate and GFCI TRIP will show on the display.
To reset, turn the thermostat to standby and then back on. If unit continues to trip, turn unit off and call a
qualified service professional.
A monthly test is recommended for the GFCI. To test the GFCI turn the thermostat up so it begins heating. Press
the GFCI button on the right side of the heater. The red light should illuminate, a GFCI Trip should be on the
display, and an audible click sound should have been heard. Turn the thermostat to standby and then on again.
If the GFCI is still tripped or none of the indicators happen replace the unit immediately.
F802GFCI
Thermostat
GFCI INSTRUCTIONS AND MONTHLY TEST
TROUBLESHOOTING TABLE