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George-Allsorts
George-Allsorts, Senior Appliance Technicial Manager
Category: Appliance
Satisfied Customers: 1448
Experience:  A whitegoods technician with 30+ years service in Domestic Appliance Service & Repair, and General Mechanical & Electrical Repair
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My vaillant eco TEC pro28 combi boiler central heating did

Customer Question

My vaillant eco TEC pro28 combi boiler central heating did not work this morning while
the hot water function did, I am getting a fault code of S 30 or 5 30. I only use it
manualy to operate the central heating.
Submitted: 2 years ago.
Category: Appliance
Expert:  George-Allsorts replied 2 years ago.
George-Allsorts :

Hello, my name is***** be patient whilst awaiting any responses as I'm not constantly available.

The fault is "Room thermostat (RT) is blocking heating mode".. What this generally means is that your room thermostat is set too low.

George-Allsorts :

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George-Allsorts :

Hello, are you still in need of assistance with this?