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Rinnai Air Handler: Set Furnace Model after replacing the control board

Updated · by Aurora Star Tech Inc.

Set Furnace Model after replacing the control board on a Rinnai air handler: After a control board replacement the System menu Furnace Model entry must be set to CAH050E.

Homeowner with a air handler problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Applies to: CAH050E, CAH050CE hydronic air handlers

How to fix set furnace model after replacing the control board: step by step

  1. Open the Installer menu with the password: down, center, up, center.
  2. Go to System menu > Furnace Model.
  3. Set it to CAH050E.
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

If the unit shows an error code, look it up: Rinnai Air Handler codes

Source: Rinnai Canadian Air Handler Installation and Operation Manual (600000023), 8.3 Controller Input Options p.40; menus p.41-42; sequence of operation p.36. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency Furnace Repair

647-657-2977