DAF 95XF. Manual - part 186

 

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DAF 95XF. Manual - part 186

 

 

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

 

 

 

 

 

 

 

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