OBD Guide

B2783

Electric Compressor Discharge Temperature Overheat

B2783 is an OBD-II diagnostic trouble code meaning: Electric Compressor Discharge Temperature Overheat. Common causes: electric compressor malfunction, insufficient refrigerant level. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Reduced air conditioner efficiency
  • Periodic shutdown of the air conditioner
  • Unusual noises from the compressor
  • Burning smell from the ventilation system

Causes

  • Electric compressor malfunction
  • Insufficient refrigerant level
  • Air conditioner radiator dirty
  • Discharge temperature sensor malfunction
  • Problems with the wiring harness or connectors

How to Fix

  1. Check the refrigerant level and top up if necessary.
  2. Clean the air conditioner radiator from dirt
  3. Check the operation of the electric compressor
  4. Check the discharge temperature sensor and its circuit
  5. If necessary, replace the compressor or sensor

Related codes

FAQ

What does the B2783 code mean?

B2783 is an OBD-II diagnostic trouble code that indicates: Electric Compressor Discharge Temperature Overheat

What causes a B2783 error code?

The most common causes of B2783 include: Electric compressor malfunction; Insufficient refrigerant level; Air conditioner radiator dirty; Discharge temperature sensor malfunction.

How do I fix a B2783 diagnostic trouble code?

To fix B2783: Check the refrigerant level and top up if necessary.. Clean the air conditioner radiator from dirt. Check the operation of the electric compressor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2783?

Limited driving only, diagnose soon

How much does it cost to fix B2783?

The estimated repair cost for B2783 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat