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KeepRite · Air conditioner

47 No 230 V at the unit

High severity KeepRite *CA/*CH Two-Stage Communicating

What the control is telling you

Indoor unit is powered and there is a call, but no line voltage is reaching the contactor.

Applies to: KeepRite *CA7/*CA9 AC and *CH6/*CH9 HP two-stage communicating

Likely causes

  • Disconnect open
  • Line voltage wiring not connected

Test and repair steps

  1. Check the disconnect is closed.
  2. Check 230 V wiring to the unit and the breaker.

Settings for these units

Models that show this code

8 models in KeepRite *CA/*CH Two-Stage Communicating

*CA624*CA636*CA648*CA660*CA924*CA936*CA948*CA960

Other codes on the same units

  • 31 High pressure switch open
  • 32 Low pressure switch open
  • 45 Outdoor control board failure
  • 46 Brown-out (low voltage)
  • 53 Outdoor air temperature sensor fault
  • 55 Outdoor coil sensor fault
  • 56 Air and coil sensors disagree
  • 71 Low stage thermal cutout

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Source: KeepRite_ICP_KeepRite_Tempstar_Heil_split_A_C_HP_R_410A_R_22_service_421_08_5400_04.txt - section Table 17 Troubleshooting (two-stage). 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.