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Electrical Tips & Advice from Auckland Electricians

Keep up to date with the latest news and articles from TCCO.

Hands resetting a breaker on a switchboard with hand-written circuit labels

Switchboards, Wiring & Safety

Why Does My Circuit Breaker Keep Tripping? 6 Common Causes & Fixes

A white Gree high-wall heat pump mounted high on a plain wall, lit by a ceiling downlight

4 November 2026

Best heat pump brands in NZ: an installer's comparison

A switchboard with a rotary changeover switch marked Mains, Off and Gen beside a row of circuit breakers

4 November 2026

Generator changeover switch cost in NZ: do you need one?

Two LPG gas bottles chained to a red brick wall, joined to a gas regulator by braided hoses

4 November 2026

Gas vs electric hot water in NZ: cylinder, heat pump or gas?

A hand pointing at a detail on a large printed building floor plan

4 November 2026

Why won't my electrician give me a labour and materials breakdown?

A round extractor fan high on a wall above a black-framed window

4 November 2026

Bathroom zones and IP ratings in NZ: what can go where

A stainless steel wall fan heater mounted high on a white wall above a doorway

4 November 2026

Bathroom heater NZ: heat lamp, 3-in-1 or wall heater?

A white flush-mounted switchboard with both doors open, showing two rows of circuit breakers

4 November 2026

Switchboard types: recessed, surface-mounted and sub-boards

An electronic electricity meter with a digital display in an outdoor meter box

4 November 2026

Smart meters in NZ: cost, who owns them and who to call

A green and yellow earth lead running from a wall conduit to a clamp in a pit in the paving

4 November 2026

Earth stakes and the main earth: does your house need one?

An electrician on a ladder working high on the outside wall of a weatherboard house

1 November 2026

Who owns the power pole, line and meter in Auckland?

Three 30 mA RCDs in an open home switchboard, each with three circuit breakers beside it

1 November 2026

RCD, RCBO or MCB: what each one does in an NZ switchboard

Clamp meter testing a fitting in front of a hot water cylinder, circuit labels on the board above

1 November 2026

How much does it cost to replace a hot water cylinder in NZ?

Outdoor heat pump unit against a block wall, connected to refrigerant gauges and a vacuum pump

1 November 2026

What changes heat pump installation cost in Auckland?

Insulated flexible ducting running across the ceiling joists of a roof space, lit by a work light

1 November 2026

Extending, replacing or removing an existing ventilation system

Hands tightening the refrigerant pipe fittings on an outdoor heat pump unit with a spanner

1 November 2026

Ducted heat pump installation in Auckland: who it suits

Electrician lifting a lit LED panel into place in a suspended ceiling grid

1 November 2026

Office and retail lighting upgrades and fit-outs in Auckland

White ceiling smoke alarm beside its handheld remote with hush, locate, test, net and SOS buttons

1 November 2026

Smoke alarm installation in Auckland: an electrician's view

White wall-mounted heat pump head unit installed high on a cream painted wall

1 November 2026

What size heat pump does a rental need for Healthy Homes?

Hands holding a clamp meter and test leads under an old fuse board labelled water heating main

1 November 2026

Is heat pump hot water worth it in NZ?

An old switchboard of ceramic fuses, a mechanical time clock and mismatched breakers, with a test probe at it.

1 November 2026

How do I know if I need a switchboard upgrade?