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Allied Furnace: Priming the condensate trap

Updated · by Aurora Star Tech Inc.

Priming the condensate trap on a Allied furnace: The trap must hold water before the first run so condensate drains properly. Pour 10 fl oz (300 ml) of water into the trap, or prime it by firing the burners.

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Applies to: First start-up

How to fix priming the condensate trap: step by step

  1. Light the unit following the lighting procedure.
  2. Set the thermostat to call for heat and let the burners fire for about 3 minutes.
  3. Set the thermostat to end the heat call.
  4. Wait for the combustion air inducer to stop.
  5. Call for heat again and let the burners fire for about 3 minutes.
  6. End the heat call and wait for the combustion air inducer to stop.
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: Allied Furnace codes

More commissioning tips for furnace

Source: Allied 92G1UH installation manual, p. 46. 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.

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