47
TROUBLESHOOTING
ENG2036-16/01/19
7.13 DISPENSING TROUBLESHOOTING
Symptoms Causes
Solutions
Irregular/
Intermittent
Dispensing
Too much water pressure. Recom-
mend 2.7 – 3.5 Bar for WL7 FW
water treatment system to operate
Adjust water pressure to 2.7-3.5Bar.
Dirty Solenoid
Open and Clean the Inlet and Out-
let Solenoid
Faulty Solenoid
Replace the Faulty Solenoid
Mineral deposits on the expansion
slot inside the Hot Tank vent cham- Descale Hot Tank following the
ber which blocks the normal path of instructions on Chapter 4.3-
water to expand properly.
Hot water
coming out
of faucet
vent hole
Improper tubing attachment from
the tank to faucet or vice versa.
Verify if tubing is connected pro-
perly from tank outlets to correct
faucet attachments.
Hot Tank outlet hole is scaled over. Inspect and Descale Tank as nee-
ded.
Expansion chamber is not sealed
properly.
Replace the Hot Tank.
No flow
or restricted
flow of water
Closed or Partially Closed water
supply valve to the unit.
Open water supply valve.
Hot Tank outlet hole is scaled over. Inspect and Descale Tank as nee-
ded.
Tubing is creased or has a “kink”
in it.
Inspect and replace tubing as
necessary.
No flow
or restricted
flow of water
Firewall as got scale in the spiral
Descale Firewall.
Exhausted Filter
Replace the Filter
Solenoid Valve is Malfunctioning
Inspect valve components for
proper function, check the spring.
Replace as necessary.
Turn power off; unplug the unit
Solenoid connection to the Display and visually inspect solenoid
PCB
connections into the Display PCB.
Verify the soldering points on con-
nections are secure into the board.
Remove the PCB to inspect the
front of the board.
Incorrect Sizing of Inlet Pipe
0-
2 meters: ≥1/4” John Guest Pipe
2-
10 meters: ≥15mm Rigid Perma
-
nent Pipe
Содержание WL7
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