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FAQs

  • AC2030TN (Plug-In/No Battery) Troubleshooting
  • Which conversion kit do I need?
  • How to find the model & serial number on unit?
  • Can I repaint my furnace cover?
  • Can I purchase a new cover for my furnace?
  • What is the warranty?
  • Can you send me a brochure on your products?
  • What color is the furnace?
  • Where do I locate clearance and installation details?
  • Can “Vent-Free” heaters be installed in California?
  • Are your products approved for sale in Canada?
  • Does the blower increase efficiency?
  • What accessories are available for my Williams furnace?
  • Can the furnace be converted from LP to natural or natural to LP gas?
  • I have an older model furnace, where do I find a current model number?

Troubleshooting

  • Gravity Top Vent Limit Switch Tripping Troubleshooting Guide
  • Where do I locate troubleshooting information?
  • Which conversion kit do I need?
  • What is causing my Direct-Vent heater pilot to go out?
  • How do I light my pilot?
  • Why is My Vent Switch Tripping?

How-To Videos

  • How do I light my pilot?
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  • How to Correctly Wire the Thermostat for Monterey Models
  • My Monterey wall furnace will not turn on, how do I get it working?

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  • What is the difference between a central furnace and a Williams’ furnace?
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Can I purchase a new cover for my furnace?

Yes. If your model number is 2509821, 2509822, 2509621(A), 2509622(A), 3509821, 3509822, 3509621(A), 3509622(A), 5009821, 50029822, 5009621(A) or 5009622(A), your cover model number is 4915.

If your model number is 1403621, 1403622, 1403821, 1403822 your cover model number is 4309.

If your model number is 2203621, 2203622, 2203821, 2203822, 3003621 or 3003622, your cover model number is 4313.

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