Solar iboost problem

Pamk

I have a solar iboost that was installed with our solar panels a couple of years ago. The iboost developed a fault, saying “tank hot” so wouldn’t heat the water. We replaced the iboost, but the same thing happened again. It worked for a few days, but then displayed same message. We only have an immersion heater for hot water, it is a single tank. Our electrician can’t work out what is wrong. The manufacturer has tested the iboost, and says there is no fault with that. Any ideas of where we go from here?

Dave_Fowler

Pamk said:

I have a solar iboost that was installed with our solar panels a couple of years ago. The iboost developed a fault, saying “tank hot” so wouldn’t heat the water. We replaced the iboost, but the same thing happened again. It worked for a few days, but then displayed same message. We only have an immersion heater for hot water, it is a single tank. Our electrician can’t work out what is wrong. The manufacturer has tested the iboost, and says there is no fault with that. Any ideas of where we go from here?

The iBoost thinks the immersion heater thermostat is open because the the water is hot. Did your electrician check the thermostat? It could be a simple job of replacing the thermostat. 
DaveF

Pamk

Hi, yes, we have had a new thermostat fitted, that didn’t solve the issue either 

paul991

have you tried to bypass the iboost that way you will know which is playing up.remember there are 2 stats in a immersion heater (normal and overload cutout)

ispookie666

check the thermostat switch on the heating element thermostat, it does trip occasionally.