Air Conditioning (A/C) Diagnostics - Pressure Zone D

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Step

Action

Yes

No

DEFINITION: The low side pressure is lower than normal and the high side pressure is higher than normal.

  • A restriction in the A/C system.

  • Debris in the A/C system.

1

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Document Tags

Document Title: Air Conditioning (A/C) Diagnostics - Pressure Zone D

system

debris

performance

test

step

conditioning

surfaces

liquid

line

expansion

device

cold

following

side

components

compressor

discharge

hose

condenser

abrupt

temperature

listed

location

warm

evaporator

inlet

tube

core

outlet

accumulator

suction

recover

refrigerant

recovery

recharging

remove

replace

repair

complete

weight

recovered

restricted

orifice

replacement

present

inspect

shop

towel

observe

collected

large

perform

procedure

port

damage

install

system performance

step surfaces

evaporator core

compressor suction

suction hose

system refrigerant

recovered refrigerant

device restricted

expansion orifice

orifice tube

tube replacement

hose replacement

debris collected

collected shop

large debris

perform following

repairs complete

suction discharge

discharge lines

replacement discharge

system performance test

cold expansion device

step surfaces following

expansion device location

components evaporator inlet

inlet tube expansion

tube expansion device

evaporator outlet tube

outlet tube evaporator

tube evaporator core

compressor suction hose

recover refrigerant refrigerant

refrigerant refrigerant recovery

system refrigerant recovery

weight recovered refrigerant

expansion device restricted

replace expansion device

expansion device expansion

device expansion orifice

expansion orifice tube

orifice tube replacement

metal flakes present

remove suction line

suction line vehicle

line vehicle suction

vehicle suction hose

suction hose replacement

inspect hose debris

hose debris blowing

debris blowing shop

hose covering shop

observe debris collected

debris collected shop

towel large debris

large debris collect

debris collect shop

step expansion device

perform following procedure

conditioning accumulator replacement

suction discharge lines

hose replacement discharge

replacement discharge hose

discharge hose replacement

conditioning evaporator thermal

evaporator thermal expansion

thermal expansion valve

expansion valve screen

valve screen replacement

install suction discharge

discharge lines suction

lines suction hose