Thermann 26LP50C, Руководство по обслуживанию

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- 26 - - 27 -
Displays on each remote controller in communication failure.
Case Kitchen Bath Ensuite
Kitchen failure 740 760 760
Bath failure 760 750 760
Ensuite failure 760 760 750
PCB failure 740 750 750
ERROR
CODE
ON
REMOTE
CONTROL
CONDITION
OF
LED IN PCB
NUMBER
OF
FLASHING
PHENOMENON SYMPTOM CAUSE CHECK METHOD
CORRECT
VALUE
REFER
FIGURE
920 FLASHING 20
NEUTRALIZER
NEED TO BE
REPLACED
(WARNING)
-
CLOSE TO END-OF-LIFE
NEUTRALIZER
REPLACE MEMORY PCB AND NEUTRALIZER AT THE
SAME TIME
Page30
290 FLASHING 21
ABNORMAL
WATER LEVEL IN
NEUTRALIZER
COMBUSTION
STOPS AND LED
STARTS
FLASHING
CLOGGING OF NEUTRALIZER
REMOVE CLOGGING OF DRAIN PIPING OR
NEUTRALIZER AND DIRT OF WATER LEVEL
ELECTRODE
Infinite
Ω
Fig.9
700 FLASHING 22 PCB FAILURE
LED FLASHES
IMMEDIATELY
PCB DEFECT EXCHANGE PCB. Page29
732 FLASHING 23
MEMORY PCB
UNATTACHED
COMBUSTION
STOPS AND LED
STARTS
FLASHING
ATTACHMENT FAILURE OF
MEMORY PCB
VISUAL CHECK
733 FLASHING 24
FAILURE OF PCB
AND MEMORY
PCB
COMBUSTION
STOPS AND LED
STARTS
FLASHING
DEFECT OF PCB AND MEMORY
PCB
REPLACE PCB, MEMORY PCB AND NEUTRALIZER
AT THE SAME TIME
Page30
-
LIGHTING
UP
-
HOT WATER TEMPERATURE CAN NOT
BE REACHED PRESET TEMPERA-
TURE
PRESSURE OF GAS SUPPLY
CHECK GAS INLET PRESSURE(SUFFICIENT GAS
INLET PRESSURE AT MAX. COMBUSTION).
Table 2
WATER INLET FILTER CLOG UP. VISUAL CHECK AND CLEAN IT.
GAS CONTROL VALVE CHECK MANIFOLD PRESSURE. Table 2
TEMPERATURE SENSOR
DEFECT (OUTGOING/INCOMING)
CHECK THE RESISTANCE IN TRANSMISSON
CONNECTOR FOR SENSOR SIDE.
Table 3 Fig.8
REMOTE CONTROLLER DEFECT OPERATE WATER HEATER WITHOUT REMOTE CON-
TROLLER AND CHECK HOT WATER 48°C/60°C/70°C
* ABOVE CHECK METHOD IS JUST ONLY FOR CHECKING PURPOSE. DO NOT USE JUST AS ABOVE CHECKING METHOD INTACT IS IN NORMAL OPERATION.