Parisienne V8-305 5.0L (1985)
Technical Service Bulletin # 9113
Date: 901001
A/C - Odors On Hot/Humid Start Up
Bulletin Number:
91-1-3
Reference Number:
051201
Publish Date:
10/90
Subject:
AFTERBLOW MODULE INFORMATION / INSTALLATION ON A/C ODOR CONDITION
Models
Affected:
1985-91 ALL MODELS
This bulletin is intended for information purposes only and addresses A/C odors emitted from the air conditioning system, primarily at start up, in hot
humid climate. This odor may be the result of foreign material, or microbial growth, in the heater/evaporator plenum. Past Service Bulletins, (Examples:
89-1-3, 90-1-6, 90-1-16 and 90-1-18) address specific procedures for resolving this condition, on various carlines. Each of these Bulletins, in part,
require the installation of an afterblow module to ward off recurring odors.
This Bulletin has been released for three (3) reasons:
1.
It describes the proper function/testing of the module:
It covers the general module input/output requirements, necessary for afterblow operation:
3.
It summarizes the various A/C afterblow module circuit diagrams which have been previously published in a number of Product Service Bulletins.
Afterblow Module Operation:
The afterblow module will enable the blower to run at high speed for five (5) minutes. It will do so approximately fifty (50) minutes after the ignition has
been turned off, provided the compressor had been engaged for four (4) or more minutes during the most recent ignition cycle. By doing so, the
evaporator plenum and core are "Dried Out", reducing the chances of a recurring A/C odor.
AN AFTERBLOW MODULE WILL NOT REMOVE EXISTING A/C ODORS. REFER TO AN APPROPRIATE PRODUCT SERVICE BULLETIN
FOR CLEANING/ODOR ELIMINATING PROCEDURES.
Afterblow Module Input/Output
