About Jupiter
Jupiter El-installation was founded in 2020. Along the way we have been up to eight people, and in 2025 I deliberately chose to return to the starting point: one authorised electrician who personally handles the job from the first message to the last screw. I do this to keep the quality, communication and service at a level I am willing to vouch for myself.
Jupiter is based in Virum, but I am happy to travel further – including to holiday homes. Travel is included in the fixed price.
Has the power gone out?
You can often find the fault yourself in a few minutes. Go through the steps below.
- The whole house or only part of it? Look in the consumer unit (fuse box). If only some rooms are affected, it is typically a fuse or a circuit breaker. If the whole house is dark, it is often the RCD (HPFI relay).
- The RCD (HPFI/HFI relay) has tripped. Switch it back on. If it trips again straight away, unplug your appliances one at a time and try again – that way you often find the culprit.
- Fuses and circuit breakers. An old cartridge fuse must be replaced once it has blown. A circuit breaker you simply switch back on. Always remove the cause first – otherwise it will trip again.
- Watch the video guide. Video guide: Has the power gone out? (Sol og Strand, in Danish)
- Still not working? Send an URGENT message from the contact page. I check urgent messages straight away.
More good advice in the Danish Safety Technology Authority’s leaflet (in Danish): Gør det el-sikkert (PDF).
