Question about Honeywell Programmable Thermostat Heater

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HONEYWELLTL8230A1003 THERMOSTAT, THE SCREEN GOES BLANK THEN ON F

INSTALLED THE THERMOSTAT PER INSTRUCTION, NO CONNECTION FOR THE GROUND WIRE. AFTER TURNING ON AND PROGRAMING TIME AND DAY AND BEFORE COULD READ INSTRUCTIONS FOR SET UP ON THE TEMPERATURE CHANGES THE SCREEN WOULD GO BLANK AND BACK ON REQUIRING RESETING OF DAY AND TIME.ETC. UNABLE TO USE TO DETERMINE IF HEATER WORKS. IT IS FOR ELECTRIC BASEBOARD HEATING.

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  • don_nancy76 Feb 02, 2009

    THERE WAS NO GROUND WIRE ON THE THERMOSTAT OR ANY PLACE TO CONNECT THE GROUND WIRE COMING OFF THE HOUSE WIRING TO THE THERMOSTAT. AND YES THE WIRING IS SET UP AS DESCRIBED AND THE WIRES WERE TESTED USING A CURCIT TESTER FOR BEING THE POWER SOURCE. INSTRUCTIONS WERE FOLLOWED TO THE LETTER. THANKS.

  • Mark Egan May 11, 2010

    The inner most black and white wires are to be connected to the power side, and the outer most are to be connected to the heater side of the circuits.

    Are you sure you got connected in this way?

    The green ground wire should connect to any ground wires that are in the box. Those ground wires should be a 3rd conductor of both the power side cabling, and the heater side cabling. It's not that important at this point, and is there for protection grounding for prevention of shock.

    Also make sure you've gotten good connection of all wiring connections.
    Reply back and I'll help you solve this.

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Well, it's an be only one of three things then (in order) -

1) Bad wiring connection, particularly the middle pair of white and black wires connected to the supply wiring, or
2) One of the breakers or fuses has tripped or blown, or
3) Bad thermostat.

If 1 is OK, check 2 (double check if breakers, sometimes they don't look tripped when they are), and lastly, take the stat back and get another one.

The ground is secondary, and it is assumed your living in a house where 14-2, 12-2, or 10-2 with ground was NOT used. If it was, hook up the ground. If not, it's OK. The grounding requirement was added to the NEC after your house or whatever was built. It is not electrically active or needed for this circuit.

Reply back what your findings are. Will be glad to help!

Posted on Feb 03, 2009

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