HVACopedia

Rheem · Furnace

58 Water sense circuit open

Medium severity R95P

What the control is telling you

The electronic water level sensor circuit is open.

Applies to: R95P (R95PA040-115)

Likely causes

  • Water level sensor unplugged or wire broken
  • Faulty water level sensor

Test and repair steps

  1. Check the water level sensor connection at the collector box and its wiring back to the IFC.
  2. Repair broken or loose wiring.
  3. Replace the sensor if the circuit is still open. (Manual gives only the meaning; steps are from general sensor-circuit checks.)

Settings for these units

Save it for the next call

Star this code in the HVACopedia app and keep the whole library on your phone for jobs with no signal.

Open the app

Source: R95P: Diagnostics and Fault Codes table, p.87 (PDF p.91). Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

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.