DAF 95XF. Manual — part 186

©

200438

1

Contents

HYDRONIC 10 (ACH-EW)

DAVIE XD diagnostics manual

6

6 Hydronic 10 (ACH-EW)

CONTENTS

Page

Date

1.

HYDRONIC 10 (ACH-EW) FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438
1.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.2

Explanatory notes to fault codes for Hydronic 10 (ACH-EW) with
electronic unit D901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 . . . . . 200438

1.3

Explanatory notes to fault codes for Hydronic 10 (ACH-EW) with
electronic unit D979 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 . . . . . 200438

2.

SYSTEM INSPECTION WITH DAVIE XD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438
2.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

HYDRONIC 10 (ACH-EW)

2

©

200438

Contents

6

DAVIE XD diagnostics manual

©

200438

1-1

Hydronic 10 (ACH-EW) fault codes

HYDRONIC 10 (ACH-EW)

DAVIE XD diagnostics manual

6

1. HYDRONIC 10 (ACH-EW) FAULT CODES

1.1 INTRODUCTION

If the electronic unit detects a system fault, this

fault is usually stored in the memory of the

electronic unit as a fault code.

Most system faults will also generate a warning.

HYDRONIC 10 (ACH-EW)

1-2

©

200438

Hydronic 10 (ACH-EW) fault codes

6

DAVIE XD diagnostics manual

1.2 EXPLANATORY NOTES TO FAULT CODES FOR HYDRONIC 10 (ACH-EW)

WITH ELECTRONIC UNIT D901

The below explanatory notes to fault codes apply

to the Hydronic 10 (ACH-EW) with the electronic

unit D901. The electronic unit can be identified by

the cast-on cable with connector.

Applicable to:

CF85 and XF95 (chassis number < 0E621373)

production date <2003-37

K101650

Fault code

Fault code description with possible cause

Symptom

0-0

Internal communication fault in ECU (D901) due
to:
-

defective ECU

-

Cab heater does not start or fails during
operation

0-1

Internal communication fault in ECU (D901) due
to:
-

defective ECU

-

Cab heater does not start or fails during
operation

1-0

Fault when starting ACH-EW, no flame is
detected within the start time. Flame sensor value
remains below 80ºC, voltage on pins 10 and 12 of
the 18-pin connector at the bottom of the ECU
<2.23 V due to:
-

no or insufficient supply of fuel

-

insufficient supply of inlet air

-

clogged exhaust

-

fouled or damaged burner

-

voltage too high or too low during glowing

-

Cab heater does not start After 2 failed starts
the cab heater switches off and generates a
fault.

1-4

Too many starts without flame detection due to:
-

no or insufficient supply of fuel

-

insufficient supply of inlet air

-

clogged exhaust

-

fouled or damaged burner

-

voltage too high or too low during glowing

-

Cab heater shuts down after 10 failed starts
(20 start attempts) and the ECU will block

2-0

Flame extinguishes repeatedly during operation
due to:
-

no or insufficient supply of fuel

-

insufficient supply of inlet air

-

undervoltage or overvoltage

-

excessively high flame sensor temperature

-

excessively high overheating sensor
temperature

-

defective combustion device

-

fouled or damaged burner

-

clogged or fouled exhaust

-

Cab heater fails or emits smoke and
supplies insufficient heat