Step | Action | Yes | No | ||||||
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DEFINITION: The low and the high side pressures are both higher than normal.
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1 | Were you sent here from the air conditioning (A/C) System Performance Test? | Go to Step 2 | |||||||
2 |
Are the cooling fans ON and operating properly? | Go to Step 3 | Go to Step 5 | ||||||
3 | Visually inspect for the following conditions:
Do any of these conditions exist? | Go to Step 4 | Go to Step 6 | ||||||
4 | Repair the air flow restriction. Is the action complete? | Go to Step 9 | -- | ||||||
5 | Repair the fault to the cooling fan operation. Refer to Cooling Fan Inoperative . Is the repair complete? | Go to Step 9 | -- | ||||||
6 |
Caution: Refer to Moving Parts and Hot Surfaces Caution in the Preface section. Feel the liquid line on both sides of the thermal expansion valve (TXV). Are the temperatures on both sides of the TXV similar? | Go to Step 7 | Go to Step 8 | ||||||
7 | Replace the damaged or faulty TXV. Refer to Thermal Expansion Valve Replacement . Is the action complete? | Go to Step 9 | -- | ||||||
8 |
Is the action complete? | Go to Step 9 | -- | ||||||
9 |
Are the readings within the specified ranges listed in the A/C Performance Chart? | Go to Step 10 | |||||||
10 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK |