Help!! Just moved into a 2 bedroom first floor flat which has a megaflo high efficiency heatrae sadia tank thing in the cupboard on the side of it there are 2 grey boxes. Fitted into the wall behind the heater are 2 switches one when you turn in it on has a red light that comes on the other switch no light comes on. I'm going to risk sounding stupid... Do they both need to be on? Do they need to be on all the time? Or does only one need to be on!
Megaflo
- Thread starter Jocelyn91
- Start date
Assuming the tank is heated using electricity (not using a gas boiler), then usual practice is to fit two immersion heaters. Bottom immersion will heat the entire contents of the tank, and is probably connected so to use Economy 7, i.e. will only operate between 0100 and 0800 hours when cheap rate electricity is available. It'll be switched at the meter, so should operate automatically.
Top immersion is a 'boost', can be switched on at any time to heat the top section of the tank to provide 'top up' hot water during the day if required. This however uses standard rate electricity, and will be more expensive to use.
Bottom switch should be left on permanently, tank should then heat overnight on E7. Top switch use if hot water runs out during the day. With bottom switch only on, and the tank doesnt heat overnight, then the immersion isn't working. Could require a simple reset, or may be a blown immersion or supply fault.
Top immersion is a 'boost', can be switched on at any time to heat the top section of the tank to provide 'top up' hot water during the day if required. This however uses standard rate electricity, and will be more expensive to use.
Bottom switch should be left on permanently, tank should then heat overnight on E7. Top switch use if hot water runs out during the day. With bottom switch only on, and the tank doesnt heat overnight, then the immersion isn't working. Could require a simple reset, or may be a blown immersion or supply fault.
Thanks thought that was the case just unsure as the bottom switch doesn't light up when I turn it on not sure if it's just the light blown in the switch or if it's not wired in.
Do you suggest I leave the boost off and hope the economy works?
Would love to eventually have a bath!!
Do you suggest I leave the boost off and hope the economy works?
Would love to eventually have a bath!!
Turn the bottom one on and see if the light comes on after 11 tonight.
Leave top immersion off tonight, make sure bottom is switched on and see if you have hot water in the morning. (Whole tank should be hot, so plenty of water for a bath if working correctly!) E7 can operate between 11p.m. - 6 a.m., 12p.m. - 7 a.m. or 1 a.m - 8 a.m. depending on supplier/area. If it doesnt work tonight then i'd suggest you engage an electrician to check out what the situation is.
Is it working?
was it only your lights or sockets as well?
if it tripped sockets etc then its a good chance the element or wiring to it is breaking down and it will happen again which will have to be sorted, if it was only lighting then you have a problem as 3kw elements and 1.5mm cable dont mix well
if it tripped sockets etc then its a good chance the element or wiring to it is breaking down and it will happen again which will have to be sorted, if it was only lighting then you have a problem as 3kw elements and 1.5mm cable dont mix well
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