What does Rheem code 44 mean?
Rheem furnace code 44 means a pressure switch was closed when the control expected it to be open on the supported control family. Confirm the model number and diagnostic chart inside the furnace door before replacing parts.
What causes Rheem code 44?
- A pressure switch stuck closed
- A pinched or incorrectly connected pressure hose
- Shorted pressure-switch wiring or a control fault
Can I troubleshoot Rheem code 44?
- Turn furnace power off for five minutes and do not bypass or jumper the pressure switch.
- Check only the outdoor vent openings for obvious snow, ice, leaves, or nests before restoring power once.
How much does Rheem code 44 cost to fix?
A pressure switch replacement typically costs between $175 and $650 nationally.
When should I call a technician?
Call a technician if the code returns; the switch, hose, wiring, and inducer draft need testing.
Sources and model scope
Fault codes vary by model and control board. Confirm the diagnostic chart inside your furnace panel or the official manual before acting.
Scope used here: Rheem/Ruud RGFG-family controls using the documented two-digit diagnostic table.
- Rheem Manufacturing Company: RGFG Series Gas Furnace Installation Instructions and Diagnostic Codes
92-24161-104-06 · Rheem/Ruud RGFG-family furnace controls; confirm the unit model and its door chart before applying a code meaning.
Compiled by Warmlo Editorial · Reviewed August 2026
This is general information, not professional advice. Gas, electrical, and combustion repairs can be dangerous — when in doubt, call a licensed technician.