10 | Status / Error message table
8 / 10
2112899A OI Ti22 ProX
Screen
LED “Alive”
Possible cause
Correction
A08 - High pressure
compressor 4
9x flashing,
pause...
See A02
See A02
A09 - Cabin temperat-
ure sensor
10x flashing,
pause...
Cabin temperature sensor defective, break /
short-circuit in electrical circuit, cabin tem-
perature sensor not connected.
Connect or replace the cabin temper-
ature sensor.
A10 - Cold water tem-
perature sensor
11x flashing,
pause...
Cold water temperature sensor defective or
break / short-circuit in electrical circuit.
Replace the sensor. If this does not
solve the problem, please contact
your authorised Webasto Marine
dealer or service partner.
A11 - Low pressure
compressor 5
12x flashing,
pause...
See A01
See A01
A12 - High pressure
compressor 5
13x flashing,
pause...
See A02
See A02
A13 - Low pressure
compressor 6
14x flashing,
pause...
See A01
See A01
A14 - High pressure
compressor 6
15x flashing,
pause...
See A02
See A02
A15 - Cold water flow
16x flashing,
pause...
The flow monitor identifies insufficient cold
water flow 5 seconds after the cold water
pump is switched on. Cold water circuit is
blocked or wire break at flow monitor if the
parameter "flow monitor" in the Deactiva-
tion menu is set to Normally open (NO).
Check cold water circuit. If a flow
monitor is not installed, you must de-
activate the flow monitor parameter
using the control element.
Refer to Setting level 3 (parameter
menu).
CA11 - compressors de-
activated
n.a.
Set compressor(s) in the control setting are
not active.
Check settings on the control ele-
ment. At least one compressor must
be set as active. See Setting level 3
(parameter menu)
Init - data communica-
tion
17x flashing,
pause...
Data communication: Electrical wiring de-
fective. Power circuit interruption/short cir-
cuit.
Check cables and connections of pc-
board and of control element.
Replace defective connection cable,
control element or pc-board.
No display on screen;
compressor and sea wa-
ter pump not running.
n.a.
Fuse faulty or break / short-circuit in this
electrical circuit.
Please contact your authorised
Webasto Marine dealer or service
partner.
Pc-board damaged by high voltage.
Please contact your authorised
Webasto Marine dealer or service
partner.
Electronic relay (TRIAC) defective.
Please contact your authorised
Webasto Marine dealer or service
partner.
Compressor not run-
ning.
n.a.
Compressor defective or break / short-circuit
in compressor wiring.
Please contact your authorised
Webasto Marine dealer or service
partner.
Compressor overload or overload protection
element on top of compressor defective.
Please contact your authorised
Webasto Marine dealer or service
partner.
Incorrect compressor settings.
Check settings. At least one com-
pressor must be set as active.
Seawater pump(s) start
up directly after the
control is switched on.
n.a.
Wiring of seawater pump and cold water
pump interchanged.
Check electrical wiring.
Compressor keeps cut-
ting in and out.
n.a.
Too little cold water.
Check cold water system for leaks.
No or insufficient cool-
ing or heating capacity.
n.a.
Poor air or water flow, soiled or circulation
blocked.
Secure adequate air or water flow.
Refrigerant shortage.
Please contact your authorised
Webasto Marine dealer or a refriger-
ant specialist.
