Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
Fan limit switch on old furnace.
Options
Tonylc4
Member Posts: 2
in Gas Heating
I have an old furnace, any one have an idea what type of fan switch I can replace this one with. Problem is the fan switch won’t come up unless I put in Manual then back to auto.
0
Comments
-
for starters look at the max temp on the ratings plate on the furnace and set the limit stop to that, then try moving the on stop up a bit and the off stop down a bit. if you have to replace it, you can get a combination fan/limit control from honeywell/resideo or white rodgers or robertshaw. you will need to pull it out and measure the probe length. The modern resideo control has a white knob for the manual control instead of that rocker. They are available from supplyhouse.com.1
-
-
Thank you! Ch4man0
Categories
- All Categories
- 85.6K THE MAIN WALL
- 3K A-C, Heat Pumps & Refrigeration
- 51 Biomass
- 423 Carbon Monoxide Awareness
- 71 Chimneys & Flues
- 1.9K Domestic Hot Water
- 5.2K Gas Heating
- 92 Geothermal
- 149 Indoor-Air Quality
- 3.2K Oil Heating
- 60 Pipe Deterioration
- 850 Plumbing
- 5.8K Radiant Heating
- 375 Solar
- 14.5K Strictly Steam
- 3.2K Thermostats and Controls
- 51 Water Quality
- 38 Industry Classes
- 55 Job Opportunities
- 18 Recall Announcements