I have a pressurised hot water system with a Tribune HE single immersion tank, controlled by a Sunvic 207 XL panel.
A few weeks ago I had merely warm water and boosted it by clicking 1hr on the Sunvic. Problem solved and never seen again until yesterday.
Water was again luke warm and the panel was set correctly to come on as always and yet the tank wasn't heating the water. "Not a problem" I thought as I could always throw the immersion switch in the airing cupboard and an hour later I would have hot water whilst I looked into this.
Alas - no. Neither this nor the Sunvic will enable me to heat the water. The Sunvic will 'advance' and '1hr' on the heating side (illuminating the red light) but when I try the same on the hot water side, the LCD display shows it as on but the red light won't illuminate.
I have tried turning the termostat right up on the dual termostat (on the tank) to rule out thermostat 'thinking the water is already too hot' and still nothing.
I am bemused as, to the lay-man (me!), if the Sunvic failed, it would not switch on the HW but the immersion wall switch in the airing cupboard should still work. Plus, if immersion (fed only by the electric from the wall switch which lights up incidentally) does not work, then the Sunvic (which controls the power to the dual thermostat - I think!) should still work...
Surely these two seemingly separate items would not fail at exactly the same time or am I missing something very obvious?
The system was installed 11/2005 if that is relevant. Any help would be much appreciated as quotes to even look at it are starting at just over £200 for which I could buy a new Sunvic, Dual Thermostat and Immersion Thermostat and have more than £100 left to play with....
A few weeks ago I had merely warm water and boosted it by clicking 1hr on the Sunvic. Problem solved and never seen again until yesterday.
Water was again luke warm and the panel was set correctly to come on as always and yet the tank wasn't heating the water. "Not a problem" I thought as I could always throw the immersion switch in the airing cupboard and an hour later I would have hot water whilst I looked into this.
Alas - no. Neither this nor the Sunvic will enable me to heat the water. The Sunvic will 'advance' and '1hr' on the heating side (illuminating the red light) but when I try the same on the hot water side, the LCD display shows it as on but the red light won't illuminate.
I have tried turning the termostat right up on the dual termostat (on the tank) to rule out thermostat 'thinking the water is already too hot' and still nothing.
I am bemused as, to the lay-man (me!), if the Sunvic failed, it would not switch on the HW but the immersion wall switch in the airing cupboard should still work. Plus, if immersion (fed only by the electric from the wall switch which lights up incidentally) does not work, then the Sunvic (which controls the power to the dual thermostat - I think!) should still work...
Surely these two seemingly separate items would not fail at exactly the same time or am I missing something very obvious?
The system was installed 11/2005 if that is relevant. Any help would be much appreciated as quotes to even look at it are starting at just over £200 for which I could buy a new Sunvic, Dual Thermostat and Immersion Thermostat and have more than £100 left to play with....