Test And Repair; Testing Water Hardness In The Appliance - Jenn-Air JDB9600AW Technical Education

5

TEST AND REPAIR

5.1

Testing water hardness in the appliance

Some faults require that the water hardness is determined in the
appliance. Check the following beforehand:
Is regeneration salt used?
Has regeneration salt been added?
Is the water softening system switched on?
Has the correct degree of hardness been switched on?
Does the customer use tablets (which ones)?
5.1.1 Testing while the water softening system is active
Start test programme and let the appliance fill up to the first pause,
checking visually.
Determine water hardness in the appliance using the water hardness
test.
Approx. 5° to 7° dH should be measured provided the water softening
system is intact and regeneration cycles have been set correctly.
If the value is significantly higher, test the water softening system.
5.1.2 Operating the appliance with the water softening system
switched off
If the water softening system is deactivated, detergent tablets with salt
replacement substances should be used. Note what is written on the
packaging.
The chemical components of multifunction tablets bind the limescale
in the water to themselves. These are effective up to approx. 21° dH.
Note the product description of the manufacturer.
Test the water hardness of the supply water.
5.1.3 Advising the customer
If the water hardness is above the range within which the utilised
tablets have a softening effect, advise the customer to use the
regeneration system with regeneration salt.
If the customer uses tablets without salt replacement substances,
suggest that special salt is used.
The appliance must be set correctly.