Carrier furnace manual reset limit switch

 · Pictures: Part of the trouble shooting manual showing the #13 and #33 errors. The limit switch. Old limit switch stuck in the open position. Manual override of the limit switch - NOT RECOMMENDED. Limit switch model. Carrier furnace type. .  · The limit switches are around the burner housing. There should be three of them, two should have a reset button on them that you can press. One likely will not, as it is an auto reset one. Here is what they look like. They may be brown in color and not 5/5.  · For some models, the controller will unlock the furnace after one or two hours. If this does not work for your furnace, you will have to manually reset the furnace limit switch. Here is how it’s done: Begin by shutting off the power to your furnace and/or close the gas valve.

The limit switches are around the burner housing. There should be three of them, two should have a reset button on them that you can press. One likely will not, as it is an auto reset one. Here is what they look like. They may be brown in color and not have a RED reset button on them as it may be brown. safety switch furnace control board vent elbow main limit switch (behind gas valve) blocked vent switch flame sensor gas manifold gas burner blower and motor manual reset limit switches capacitor/ power choke a fig. 2 − 80% afue two−stage furnace components important facts (do’s and don’ts) do: read and understand this manual. The flame roll-out switch activates when the furnace heats to a predetermined high temperature limit. Once the flame roll-out switch has been tripped, it must be reset before the appliance can produce heat again. Wait 30 minutes before attempting a furnace reset to allow the motor to cool down.

−Do not touch any electrical switch; do not use any phone in your building. MAIN LIMIT SWITCH occurs, turn off the manual gas valve to the furnace. My unit has four high limit switches, two of which have manual reset buttons. If any open up the whole series is open and it will cut off 24V AC power to. 21 ກ.ພ. After consulting the error code section in the manual that came with the furnace it specified a "Limit circuit lockout" error.