This technical paper describes how to gain access to clean a blower wheel in a Mitsubishi Electric model MSZ-GE, MSZ-FE, and PKA ductless indoor unit. This information cannot be found in any Mitsubishi Electric cooling and heating U.S. publication.

1. GUNDER TECHNICAL NOTICE
TECHNICAL NOTICEGUNDER
REGARDING: Access Doors to Clean Blower Wheel
DETAILS: A feature on the M & P Series high wall ductless indoor units allows for quick access to the
blower wheel for ease of maintenance. The illustration below reveals the five (5) steps to gaining access
to the area of the blower wheel and housing. The page two has photographs which depicts the process.
MODELS AFFECTED: PKA, MSY/MSZ-GE/FE
DATE: JULY 29, 2013
WRITTEN BY: J. CHAVEZ
PAGE: 1/2
DOCUMENT No. BW02.0
DISTRIBUTION: EXTERNAL
TURN OFF UNIT BEFORE CLEANING
FAN GUARD/BLOWER ACCESS DOORS DIRECTIONS: Use a pocket or mini flathead screwdriver to slip
into the pull tab located near the center post. Gently wedge the tab while pinching the pull tab with your
index finger and thumb. Continue gripping the pull tab and tug outward about a half inch to reveal a notch.
The pull tab will now rest upon itself. Next, find the lower notch which is located below the pull tab. Take
the screwdriver and insert on the right side of the notch then gently pry the lower notch to “pop” out the
blower access doors.

2. GUNDER TECHNICAL NOTICE
TECHNICAL NOTICEGUNDER
CENTER POST
PULL TAB AT REST
INSERT
SCREWDRIVER
PINCH AND PULL A
HALF INCH
PRY WHILE
PULLING TAB
TWO PULL TABS
REGARDING: Access Doors to Clean Blower Wheel
MODELS AFFECTED: PKA, MSY/MSZ-GE/FE
DATE: JULY 29, 2013
WRITTEN BY: J. CHAVEZ
PAGE: 2/2
DOCUMENT No. BW02.0
DISTRIBUTION: EXTERNAL
TURN OFF UNIT BEFORE CLEANING