Noritz WHiC56 Service Manual page 58

Water Drain Valve (with Water Filter)
If the water drain valve (with water fi lter) is covered with debris, the hot water may not run
smoothly, or the unit may produce cold water. Check and clean the fi lter as explained below.
* To avoid burns, wait until the equipment cools down before draining the water.
The appliance will remain hot after it is turned off.
* Water will be discharged from the trap plug. Place
a container, etc. to receive the discharged water.
1. Close the water supply valve.
2. Open all hot water fi xtures.
3. Remove the inlet and outlet drain plugs (about 1.7 L:
(L)WHiCX56 and (L)WHiC56, 0.8L: (L)WHiX49
and (L)WHi49, will drain out)
4. Take the water drain valve (with water fi lter) out
of the inlet. (See illustration to right).
5. Clean the water drain valve (with water fi lter) with
a brush under running water.
6. Replace the water drain valve (with water fi lter).
(Take care not to lose the packing.)
7. Close all hot water fi xtures.
8. Open the water supply valve and check that water
does not leak from the drain plugs or water drain
valve (with water fi lter).
Maintenance (Once a month)
Ex.WHiC56,LWHiC56
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Inlet
Packing
Drain Valve
(with fi lter)
Water Supply
Valve