01-082

01-082: Model 389 Air Conditioner Evaporator Freezing
Up
11/7/2022
 Edit
 Clone
01-082
​Model 389 Air Conditioner Evaporator Freezing Up
Subject
​Model 389 Air Conditioner Evaporator Freezing Up
Whats New Abstract
Certain model 389 chassis are experiencing freezing of the A/C evaporator or frosting of the compressor and
suction line. A field resolution is available to solve this issue.
Condition
​ /C evaporator core freezing, or frosting/icing of the air conditioning compressor & suction line, can lead to
A
restricted airflow across the evaporator. This significantly reduces cooling performance.
Chassis Affected
​ ertain model 389 chassis that are experiencing frosting/icing of the air conditioning compressor & suction line,
C
and the evaporator core freezing.
Action
Fix-As-Fail
If a customer comes into your dealership and demonstrates the condition above, install a low-pressure switch and
jumper to allow the compressor to cycle more frequently. Use the procedure below.
Situation
​ ertain model 389 chassis that are experiencing frosting/icing of the air conditioning compressor & suction line,
C
and the evaporator core freezing.
Warranty
Through Standard Warranty or any applicable active Extended Warranty, Peterbilt will pay for parts at dealer net
plus applicable mark-up and labor:
• 0.3 hours labor to install a low-pressure switch to allow more frequent cycling. Use Quick Claim code 01082.
• File an additional claim for extraordinary circumstances. A quick claim for standard labor must be filed first.
• In PRWS, if the Quick Claim is not available, file a long form claim and reference the bulletin number in the claim
story. Do not enter the bulletin number in the campaign code field.
​
PRWS CLAIM CODING
Campaign 01082 Campaign
Code:
Type
Field Repair
​Claim
Truck
Category:
Repair Type
Fix-As-Fail
Customer 010
Concern
Code
Causal Code
95
Corrective 23
Action
Code
Responsibility Std. Warr.
Code:
Failure
Location
001001052
Causal Part
Supplier
Code
N/A
SRT Code
​
​1000472998BSM
001-059
0.3 hours labor to
R&R the A/C Evap
Low Pressure
Switch
Parts
Parts are available from PACCAR Parts.
​Quantity
Part
Number
1
RD58219-0
Low Pressure Compressor
Switch
1
R926008
Electrical Jumper
​Description
Procedure
Please follow your dealership's safety procedures and precautions to ensure the vehicle can be safely repaired
and maintained.
Please see the procedure in the Links section below.
Attachments
​Authored by D. Cook