Check Economizer Valve Circuit

Failure in the economizer valve circuit affecting efficiency.

Possible causes

Economizer valve coil open
Damaged control wiring
Output relay problem
Blocked valve

Recommended actions

Verify economizer coil resistance
Inspect connectors and wiring
Test activation via test menu
Check pressures to verify actual opening

Can't find your code? Talk to an expert

$150

One-on-one phone session with a Low Temp refrigeration tech. Emergency temporary assistance only.

Email (opcional)

Teléfono (opcional)

¿Tienes un cupón?

I understand this is emergency temporary remote guidance only, no repair is guaranteed, I assume all risks, and Low Temp Service is not liable for cargo, engine, electrical, mechanical or accident damages. I accept the Terms & Conditions.

Have a question? Ask the community

Thousands of refrigeration mechanics read and answer for free. Post your case in under 1 minute.

Other Thermo King codes

00No Alarms Exist 02Check Evaporator Coil Sensor (Zone)03Check (Control) Return Air Sensor (Zone)04Check (Control) Discharge Air Sensor (Zone)05Check Ambient Temp Sensor 06Check Coolant Temp Sensor

View all Thermo King codes

Need a professional diagnosis?

Low Temp Service — refrigeration experts in Florida.