Today i went to a tenants house who complained about her water not heating up on the economy 7 element in the immersion heater. So i powered up the economy 7 element, it hissed like a kettle for about 30 seconds then the hissing went very quiet. I put my tester across the thermostat and it showed 230v on both sides. I know the power is there but the water was not heating up. I then turned on the booster element and it hissed like a kettle for about 10 minutes then calmed down, this heated the water.
Normally when i've had to look at immersions if the breaker trips while it is powered up, the elements nackered. This time the breakers not tripping and there's power going through the thermostat - but no hot water!
Any ideas what this could be
Normally when i've had to look at immersions if the breaker trips while it is powered up, the elements nackered. This time the breakers not tripping and there's power going through the thermostat - but no hot water!
Any ideas what this could be