WL380
Manual
Page 38 ‐ Revision: 2‐5‐2018
2.
FAULT CODE:
Firewall Purification Light Out and 15 second Audible Alarm
Indicates the Firewall UV system is not detecting adequate dose of UV to ensure safe water.
The Cold and Ambient dispense icons will be disabled and cold and ambient water will not dispense.
Hot water will still dispense.
Firewall UV Active
Firewall Disabled
Possible Reason
Solution
Firewall UV System does not
have adequate dose of UV.
Check UV System
1.
If Ballast Indication Light is Green – the system should
be operational. Ensure UV lamp is on.
Replace Lamp. If lamp is replaced and problem
persists, replace UV Sensor.
2.
If Ballast Indication Light is Red, change UV Lamp.
3.
If Ballast Indication Light is not lit – check power to
Ballast. If power is going to Ballast – replace Ballast.
Power to Ballast
Remove Cover to locate Ballast
N = Black Wire
L = White Wire (Live)
1 = White Wire
2 = White Wire
3 = Yellow Wire
4 = Yellow Wire
Ballast Indication Light
Wiring Harness to UV Lamp
