Solar I boost problems

aubz87

I have a solar I boost that reads ' water heating off' then the sun will come out and read 'heating by solar 0.00kw then will switch to 'how water tank hot' even though the water is cold.
Had the thermostat and element checked and all is fine. We are still exporting, but does this sound like a faulty I boost issue. Very frustrating 

Dave_Fowler

aubz87 said:

I have a solar I boost that reads ' water heating off' then the sun will come out and read 'heating by solar 0.00kw then will switch to 'how water tank hot' even though the water is cold.
Had the thermostat and element checked and all is fine. We are still exporting, but does this sound like a faulty I boost issue. Very frustrating 

It's worth checking that the tank override thermostat is not tripped. The Iboost will report tank hot because it thinks the normal tank thermostat has opened. 
DaveF

JKenH

aubz87 said:

I have a solar I boost that reads ' water heating off' then the sun will come out and read 'heating by solar 0.00kw then will switch to 'how water tank hot' even though the water is cold.
Had the thermostat and element checked and all is fine. We are still exporting, but does this sound like a faulty I boost issue. Very frustrating 

Mine did something similar but actually showed heating at 2.9kW, irrespective of the amount of spare solar, then a second or so later switched to “water tank hot” and stopped heating even though the tank would need it. It happened a week or two before I switched to Octopus Flux so I simply disconnected the iBoost and replaced it with a normal timer. 

My immersion heaters worked fine after that so presumed it was a glitch in the iBoost.

gefnew

Quite a lot of info here if it will help,
Support & Downloads (marlec.co.uk)