How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Craig Your Own Question
Craig, Electrical Technician
Category: Appliance
Satisfied Customers: 4529
Experience:  33 years experience electrical troubleshooting industrial equipment and control systems.
Type Your Appliance Question Here...
Craig is online now
A new question is answered every 9 seconds

I have a Gibson Furnace model # GL1RA072C-12B. The thermostat

This answer was rated:

I have a Gibson Furnace model # XXXXX The thermostat batt had split and i replaced with new triple A batts. Furnace blower is continuous. Furnace code indicates "limit Circuit open or External Load on "W". How do i fix this. Where is the limit cuircuit.

The blower motor is controlled by the 'fan switch' it's on the side of the furnace duct and feeds the fan relay. It's a thermostat for sensing the heat before turning on the blower. It's bad and runs the fan continuously. Replace the fan switch.
Craig and 2 other Appliance Specialists are ready to help you