INSUFFICIENT COOLING - continued - TM-9-4120-423-14-P0317

TM9 4120-423-14&P

INSUFFICIENT COOLING - Continued

(e)

Measure temperatures of air going into (return) and out of (discharge) evaporator

section. Discharge should be 20Ε plus or minus 5Ε F lower than return air

temperature.

TEST OR INSPECTION

Step 9. Check liquid line solenoid valve L2 coil. (See WP0093).

CORRECTIVE ACTION

Replace coil only, if found bad.

TEST OR INSPECTION

Step 10. Check pressure equalizing solenoid valve L1 coil. (See WP0093).

CORRECTIVE ACTION

Replace coil only, if found bad.

TEST OR INSPECTION

Step 11. Check temperature control A1. (See WP0061).

CORRECTIVE ACTION

Replace if found bad.

TEST OR INSPECTION

Step 12. Check temperature-sensing probe A1-RT. (See WP0019).

CORRECTIVE ACTION

Replace if found bad.

TEST OR INSPECTION

Step 13. Check mode selector switch S1. (See WP0059).

CORRECTIVE ACTION

Replace if found bad.

TEST OR INSPECTION

Step 14. Check solenoid L2 valve body action. (See WP0093).

CORRECTIVE ACTION

Replace solenoid valve if found bad.

TEST OR INSPECTION

Step 15. Check solenoid L1 valve body action. (See WP0093).

CORRECTIVE ACTION

Replace solenoid valve if found bad.

TEST OR INSPECTION

Step 16. Check evaporator expansion valve. (See WP0078).

CORRECTIVE ACTION

Replace if found bad.

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