Check Heat Circuit (Zone)

System detected a problem in the components generating heat in the zone.

Possible causes

Burnt heat solenoid valve
Damaged electric heating elements (if applicable)
Open control circuit
Air damper failure

Recommended actions

Test heat solenoid via manual diagnosis
Verify heating circuit fuses
Measure circuit continuity
Check hot gas valve operation

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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

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