HVACopediaAllied · Furnace troubleshooting
Winterize and clean the condensate trap
What is going on
Condensate trap care on the Allied, for winterizing or routine cleaning. Before opening anything, turn the furnace power off. A trap can hold dirty water and sludge, so have a pan ready under it and avoid spills onto the electrical parts.
Likely causes
- Sludge or debris building up inside the trap
- Water left standing in a trap that can freeze
- Clean-out cap not reinstalled tightly after service
Check in this order
- Turn off power to the furnace first.
- Place a shallow pan under the trap.
- Remove the trap clean-out cap and drain the water.
- Inspect the trap for debris or growth, and clear it.
- Reinstall the clean-out cap and make sure it is snug.
- Restore power and watch for leaks on the next run.
Applies to: Condensate trap maintenance
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Source: Allied 92G1UH installation instructions manual, p. 51. Written in our own words; check the manual for your exact model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.