MAINTENANCE

WTC 600 LP / MP

4.5.3Malfunctions of the RO Control and Metering Pump

Indication

Malfunction

Cause

Corrective Action

Chap./

 

 

 

 

Fig.

Indication of RO

Fuse defective

 

Have replaced by

ETL,

control dark

 

 

electrician

diagram

 

 

 

 

in switch

 

 

 

 

cabinet

 

 

 

 

 

 

Short circuit,

 

Replace defective parts

 

 

general

 

 

 

 

Solenoid valve

 

Replace defective parts

ETL

 

defective

 

 

 

 

 

 

 

 

 

Motor winding

 

Replace defective parts

ETL

 

defective

 

 

 

 

 

 

 

 

Water level in

Pump does not

Suction line untight

Retighten screwed

ETL

container is

draw in

 

fittings. Replace

 

constant for

 

 

suction line

 

days

 

 

 

 

 

 

 

 

 

 

 

Suction line

Flush or replace

 

 

 

clogged

suction line

 

 

 

 

 

 

 

 

Crystals, debris in

Clean valves

4.2

 

 

the valves

 

 

 

 

(metering head)

 

 

 

 

Membrane torn or

Replace membrane

4.2

 

 

membrane push-

 

 

 

 

rod torn out

 

 

 

 

 

 

 

 

Pump does not

Air in the suction

Bleed pump

 

 

meter

line and in the

 

 

 

 

metering head

 

 

 

 

 

 

 

 

 

Lift adjustment a

While the pump is

 

 

 

zero

running, turn in “+”

 

 

 

 

direction (adjustment

 

 

 

 

values, see 3.3.1)

 

 

 

 

 

 

 

 

Crystals, debris in

Clean valves

4.2

 

 

the valves

 

 

 

 

(metering head)

 

 

 

 

 

 

 

 

 

Valves not

Check correct line-up of

 

 

 

mounted correctly

valves and correct,

 

 

 

 

if required (direction of

 

 

 

 

arrow!)

 

 

 

 

 

 

 

 

Injection fitting

Check direction of flow

 

 

 

blocked

and correct, if required,

 

 

 

 

or eliminate plug

 

 

 

 

(direction of arrow!)

 

 

 

 

 

 

Table 30

 

 

 

 

58

Service Handbook 08.2004

Page 58
Image 58
Karcher 600 CD manual Indication of RO Fuse defective Have replaced by

600 CD specifications

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