T 7 0 s i
21
6
Pressure relief
device has operated
(water ejected from
PRD tube).
6.1
Blocked sprayhead.
6.2
Twisted/blocked
flexible shower hose.
6.3
Sprayhead not
removed whilst
commissioning.
6.1.1
Clean or replace blocked sprayplate in
sprayhead and then fit new PRD.
6.2.1
Check for free passage through hose.
Replace the hose if necessary and fit new PRD.
6.3.1
Fit new PRD. Commission unit with
sprayhead removed.
Note:
Identify cause of operation before fitting new PRD unit.
When fitting a new PRD, follow the commissioning procedure.
It is advised all electrical maintenance/repairs to the shower
should be carried out by a suitably qualified person.
FAULT FINDING (continued)
Problem/Symptom
Cause
Action/cure