Questions & Answers for: furnace summer switch

...furnace isMGF75-3 installed in1999.Summer Fan not used for a couple of years.Appreciate any help before I call for veryexpensive help just to come by. Thank you. Just curious, there sometimes is a ...

furnace to sit over the summer and have the condensate drain trap dry out. This drain will drain the condensation from the blower and discharge to drain. If there is no water in the trap, it can allow

...summer, or auto and on. You should also have a fused switch to the furnace, wiring runs black to the switch thru the fuse and to the furnace black wire. White wire is straight to furnace from ...

...summer switch on my furnace model FG6RA 072C-12A there isn't a summer switch - the thermostat will switch the operation from heat/winter operation to cool/summer operation. I.E. "Cool" for Summer ...

...furnace blower and recondensing fan together in the middle of summer with thermostat turned off or disconnected. This is an internal furnace problem which is becoming annoying as the frequency of ...

I have a RTH2310 and it ran ok with A/C all summer but does not turn on the furnace now The furnace may not be getting power. It could have been turned off when switched over from heating to cooling.

...summer/winter switch located on Dayton Fuel Trimmer furnace model 3E438A.? Fan runs constantly, not enough heat. The typical 'summer/winter' switch is an added switch associated with OLD heating ...

...furnace function normally otherwise? Might just be a stuck fan switch. Make sure the thermostat hasn't been set on Fan ON setting or summer air circ. on older furnaces. Find the fan switch and tap it ...

...OUT, BUT FURNACE KEEPS RUNNING Check flame sensor or thermocouple clean sensor . check afc and limit switch fan is not shutting off on cool down temp. check summer switch is not in the on

summer fan on my Heil Ultimate II furnace? typically that is at the thermostat. If the installer ran wire to the thermostat to have the fan run. If not you need to have a service company run wire from