1. Pete50 is absolutely right, earth conductors have been cut.
2. It is absolutely essential that immersion heaters are earthed, otherwise a faulty element could cause all the pipework in the property to become live.
3. Do not use until the earthing has been addressed. Its not just a question of connecting the earth cables to the earthing studs correctly, but making sure the earth circuit is continuous right through to the consumer unit and the electricity board's earth. If its rented, I'd expect the landlord to get this done as a matter of urgency, as he / she has an obligation to provide hot water.
4. Both those immersion heaters should have over heat thermostats. These are thermostats which trip at around 80 to 90 degrees, and do not reset themselves. They have to be reset manually:
4a. The green one has a red button next to the "Safety" mark. Pushing this in will reset that thermostat if it ever triggers.
4b. Can't see one for sure on the black one, but it might be the tiny white button to the right of the red adjustment knob.
2. It is absolutely essential that immersion heaters are earthed, otherwise a faulty element could cause all the pipework in the property to become live.
3. Do not use until the earthing has been addressed. Its not just a question of connecting the earth cables to the earthing studs correctly, but making sure the earth circuit is continuous right through to the consumer unit and the electricity board's earth. If its rented, I'd expect the landlord to get this done as a matter of urgency, as he / she has an obligation to provide hot water.
4. Both those immersion heaters should have over heat thermostats. These are thermostats which trip at around 80 to 90 degrees, and do not reset themselves. They have to be reset manually:
4a. The green one has a red button next to the "Safety" mark. Pushing this in will reset that thermostat if it ever triggers.
4b. Can't see one for sure on the black one, but it might be the tiny white button to the right of the red adjustment knob.
