Question about Honeywell L4064B2236 Fan/Limit Control Heater

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Need a replacement for a Honeywell L4064B1865 4 limit switch.

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I have a bad fan/limit control Honeywell L4064A 2188.What would sbe a suitable replacement part number?


take original honeywell model # go to honeywell site and look for original part # and it will give you cross reference #s

Nov 05, 2013 | Honeywell L4064B2236 Fan/Limit Control...

1 Answer

Honeywell s9200


YOU MUST HAVE THE 2 TERMINAL GOING TO THIS LIMIT MIXED UP AND SHORTING OUT. CAN YOU TELL ME WHAT IT IS INSTALLED IN OR DO YOU HAVE THE WIRING DIAGRAM TO REFERENCE?

Oct 20, 2012 | Honeywell S9200U1000 - Hot Surface Control...

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Honeywell S9200 causes transformer death when limit switch attached


If jumping 1 to 7 is blowing the fuse it sounds like a bad board.Not familiar with those but as you said, normally closed limit would be the same as a jumper. Check your dip switches first but I'm thinking bad board/direct short.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

May 24, 2017 | Honeywell Heating & Cooling

1 Answer

Gas furnace with Honeywell smart valve code error 6:2, replaced the following: pressure switch, smart valve, ignitor flame sensor and control board. Cleaned out the condensate line. Still getting 6:2 flash...


Hello, it sounds like your Furnace might be shutting off due to your high limit switch.A limit switch will open when the furnace overheats due to low airflow, . check air filter, clean blower wheel, and check to make sure the blower wheel is running at proper speed and not dragging sometimes cause by a weak capacitor. Anything that restricts airflow will cause a limit switch to open.

Mar 08, 2011 | Honeywell Heating & Cooling

1 Answer

Need wiring diagram for honeywell limit control switch


http://www.inspectapedia.com/heat/Fan_Limit_Switch_Installation.htm#Wiring Go here, it is a super site for just about everything home related.

Dec 24, 2010 | Honeywell L4064B2236 Fan/Limit Control...

1 Answer

My honeywell Thermostat reaches the heating temp. but the fan will not stop running.And yes the fan is set to auto.It just keeps running and running and running.It stays the same temp but will not shut off...


I want to give a simple explanation before I go any further. On the heating side of a unit even though tthe temp has satisfied the thermostat, the fan will run until it cools down the plenum where the air flows from the air handler. There is a bimetal switch called a fan limit that operates the blower when the plenum reaches the temp set on the fan limit switch. Now if your fan keeps running even after the plenum chamber has cooled down, then you could have a fan limit switch that is stuck in the run position and must be replaced in order to correct the problem.

Dec 07, 2010 | Honeywell CT87B ROUND HEATING&COOLING...

1 Answer

I have a 30 year old fedders furnace and the furnace fan runs continuously. I was told by several people that the problem was probably a defective fan limit switch. But because its an older furnace with...


Hi,
The switch will be the silver/gray box just above the burner in the supply plenum...
There really is nothing you can do to fix that if it is bad... the switch runs off of a bimetal spring and that has just plum worn out...

The main thing you need to check is the insertion depth of the bimetal spring...then you can buy a replacement at any HVAC supply house...

Chances are that what you have is a Honeywell product and you can download anything you need from the honeywell site...

I tell you how to do it in this tip...

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heatman101

Sep 03, 2010 | Heating & Cooling

1 Answer

I have an older model heil quaker natural gas furnace. the wiring to the blower limit switch has dry rot and melted thru causing a short. is this common? can i just rewire or may there be other problems


Test to make sure the limit switch is still working prior to the rewire. Use an Ohm meter and test for continuity. If good, use some good quality 14 or 12 guage wire to rewire. If the unit has an in-line fuse, you will need to replace that as well.

Mar 27, 2010 | Honeywell Heating & Cooling

1 Answer

Settings for switch


Shut off 80-90, on around 130-140, high limit (if you can set) 160.

Jan 28, 2009 | Honeywell L4064B2236 Fan/Limit Control...

1 Answer

Honeywell manual fan switch broken


The fan limit switch is basically like a thermostat. When the plenum heats up to a certain degree it turns on the fan to start heating your house, and turns off when the fan off when the plenum gets around 80-90 degrees so that you’re not pumping cold air in to house. It also acts as a safety switch if the fan does not come on the plenum will get way to hot so this fan limit will kick the furnace off before that happens. As far as that little white button it should always be on auto you can try to use needle nose pliers to get it back into the auto position, or if you have the broken piece you can try to glue it back on. The white button goes in and out it does not turn or anything just make sure you turn the power off first and if u can’t fix it replace.

Oct 13, 2008 | Honeywell L4064B2236 Fan/Limit Control...

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