WRAS APPROVED FILLING LOOP
Subject
Description
Part Function
It is used for filling water to the central heating system.
Impact in Case of
Faulty Operation
1- No water is filled into combi boiler.
2- It cannot be turned off when filling water to boiler, and it causes
water discharge by opening safety valve.
3- It leads to mixing of tap water with the water in the central heating
system.
4- Where the pressure of main tap water system is very low, it may
cause low pressure error by emptying water in the central heating
system due to a faulty valve.
Primary Relevant
Error Codes
F40, F37
Troubleshooting and
Testing Method
Visual Inspection and Testing:
1- Checking whether there is any dirt, burrs, wear, deformation, etc.
on filling loop o-ring and filter.
Maintenance Period
Once a year filter cleaning, according to informations above.
Filter
70
