Pulsacoil A Class - Only tepid water supply

Hi,
We have a pulsa coil A class in a flat we moved into recently, its been working fine for a month, but just today started giving only tepid to lukewarm water. The indicator light was flashing. We switched the heater off for a minute and switched it back on and it was no use, we still get only tepid water. But the indicator light stopped flashing. We tried the black button, but nothing happened(the indicator light did not turn on). We will check out the thermal store in the evening. Any ideas on what could be wrong ?

Thanks much for your help. Great to have a forum like this.

Hi Mekaraj,

Probably burned out power relays. The A-Class is pretty reliable except for this problem.

Cheers, Mike