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Underfloor heating control problem
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<blockquote data-quote="Greyspur" data-source="post: 286172" data-attributes="member: 20894"><p>I have had electrical underfloor heating for 4 years. 5 mats each with an Aube TH132 control unit and Aube PB130 base. The largest controls a mat of approx 21 sq metres and it doesn't work.</p><p></p><p>When the control unit switches on after a minute or so the LCD display fades and goes blank, resets and the floor will not get warm. I swapped the control unit to another mat and it works fine, but a new unit on the original base/mat has the same problem - blank screen, no heat and then the display reads as if it has been turned on after initial installation.</p><p></p><p>All other mats are OK, so I think maybe I need a new base unit? Also the resistive load on the base should not exceed 3450Watts at 230V (max 15A) and I wonder if that may be the reason it has failed. I have read that a contactor and a snubber may be needed, but have no idea whether my system has them or where they might be sited. I am tempted to buy another base unit and wire it in, but wonder if this is a DIY proposition?</p><p></p><p>Sorry for so many questions but any advice would be helpful, thanks Mick</p></blockquote><p></p>
[QUOTE="Greyspur, post: 286172, member: 20894"] I have had electrical underfloor heating for 4 years. 5 mats each with an Aube TH132 control unit and Aube PB130 base. The largest controls a mat of approx 21 sq metres and it doesn't work. When the control unit switches on after a minute or so the LCD display fades and goes blank, resets and the floor will not get warm. I swapped the control unit to another mat and it works fine, but a new unit on the original base/mat has the same problem - blank screen, no heat and then the display reads as if it has been turned on after initial installation. All other mats are OK, so I think maybe I need a new base unit? Also the resistive load on the base should not exceed 3450Watts at 230V (max 15A) and I wonder if that may be the reason it has failed. I have read that a contactor and a snubber may be needed, but have no idea whether my system has them or where they might be sited. I am tempted to buy another base unit and wire it in, but wonder if this is a DIY proposition? Sorry for so many questions but any advice would be helpful, thanks Mick [/QUOTE]
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Underfloor heating control problem
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