18 DIAGNOSING AN ISSUE

Troubleshooting:

F1: BLOWER (Blower Running Status Bad)

YES

Is Status Indicator A backlit

on the “Test” Screen?

(see page 23)

NO

Is the wiring

harness properly

connected?

Check the Motor

Controller, Blower

Motor, and I/O

Control Board.

NO

(See page 61 for

schematic.)

YES

Replace Blower

Motor (page 53) or remove obstruction.

NO

Is the Blower Motor

spinning freely?

YES

NO

Correct the wiring

or replace I/O Control Board (page 39)/Motor Controller (page 32) if damaged.

Do resistance measurements between windings and chassis agree with values on Motor Windings Resistance Table?

(Figure 24, below)

NOYES

 

 

 

 

 

Replace Blower

 

Replace

Motor. (page 53)

 

 

Motor Controller.

 

 

 

 

 

 

(page 32)

 

 

 

 

 

 

 

TO

FROM

DESCRIPTION

EXPECTED RESISTANCE

 

 

 

 

Black

Red

Winding (A-B)

2.0-2.6 Ohms

 

 

 

 

Black

White

Winding (A-C)

2.0-2.6 Ohms

 

 

 

 

Red

White

Winding (B-C)

2.0-2.6 Ohms

 

 

 

 

Black, Red or White

Green

Windings to Chassis

Open

 

 

 

 

 : Motor Windings Resistance Table

Page 34
Image 34
Turbo Chef Technologies HHB-8099, HHB-8136, HHB-8029, HHB-8028 Troubleshooting F1 Blower Blower Running Status Bad, Noyes

HHB-8041, HHB-8099, HHB-8085, HHB-8097, HHB-8115 specifications

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