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by screenlux
Mon Oct 13, 2008 10:27 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Weird behaviour of my S plan system
Replies: 4
Views: 3184

[quote="htg engineer"]It's unlikely (not impossible) that both the motorised valves will be faulty. When the heating goes off but wont come back on - have you checked the room stat isn't keeping the heating off ? I'd be looking towards time clock / programmer. htg[/quote] The hot water val...
by screenlux
Mon Oct 13, 2008 10:21 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Weird behaviour of my S plan system
Replies: 4
Views: 3184

[quote="screech"]what wiring centre have you got? if it's one with a circuit board in it could well be at fault[/quote] It's a Hordtmann H27 Channel Plus 7 Day programmer. It's the newest component on the system bu still 7 years old. I've a funny feeling it is the valves as the motorised v...
by screenlux
Fri Oct 10, 2008 9:20 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Weird behaviour of my S plan system
Replies: 4
Views: 3184

Weird behaviour of my S plan system

My central heating S plan system has been working fine until just recently. One morning the radiators did not get warm although everything else seemed ok. I thought it was just a sticking valve so I used the contol panel to switch off and on to see if it made a difference. This is when the weird sit...
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