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Can't pull oil (distance/lift)
What is going on
Possible causes and checks for: can't pull oil (distance/lift).
Likely causes
- Single-stage pump limited to
- In. Hg, two-stage
- In. Hg
- Beyond that booster pump + reservoir
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Source: General HVAC service practice — verify per model. 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.