Category Archives: Bore electrician

Water bore start capacitor problem

Often we attend service calls to bore problems where the problem turns out to be the start capacitor.

Start capacitor and start box
Start capacitor and start box
Start capacitor in start box
Start capacitor in start box

In a single phase submersible bore pump the start capacitor is ordinarily in the 240 volt start box. Three phase submersible pumps do not have start capacitors. In some centrifugal pumps the capacitor can be mounted externally on the pump motor housing. It is surprising how often a faulty capacitor is missed as the cause of a bore pump problem particularly when tests are carried out by someone who is not specifically experienced in bore pump service work. Even trained general electricians can misdiagnose this simple problem.

Often a capacitor problem can spotted visually as a failed unit commonly swells or ruptures. A start capacitor should be perfectly cylindrical. Sometimes though a faulty capacitor can only be diagnosed by the serviceman actually testing it when disconnected. As the start box is mains powered it does need a licensed electrician or certified electrical worker to test and replace the start capacitor

Close up burnt bore start capacitor
Close up burnt bore start capacitor

One of our clients from Baldivis sent us these pics of inside his submersible water bore start box.

This is a single phase start box and is a particularly dramatic example of a blown start capacitor.

Burnt bore start capacitor in start box
Burnt bore start capacitor in start box

Our mobile bore service teams carry a variety of different size start capacitors and can quickly diagnose and fix this common bore problem. Call us on Perth 9246 0111.

Electrical bore problem Beechboro

Top of submersible bore
Top of submersible bore

Our specialist bore electrician recently was called to a Beechboro customer. The submersible bore was tripping the circuit breaker.

Dave our electrician tested the single phase submersible pump and all the electrical tests were OK but marginal.

There was an old metal start-box which was rusted out and dangerous. He replaced and rewired the start box with a new 1.5 kw rated box with matching 50 mf start capacitor. Dave replaced some dangerous connections at the bore head and retested everything. Given the apparent age of the submersible pump it will likely need replacing in the next few years. We have recommended that at that time the down hole electrical cable and stainless steel draw wire is also replaced.

We have a wealth of experiencing servicing bores and pumps throughout Perth. Give us a call if we can help you.

Water bore faulty Perth

Electrician working on submersible bore in Perth
Electrician working on submersible bore in Perth

The Perth metro sprinkler bans have ended for 2014.

Perth bore owners have been out testing their water bores for the first time this spring. Some are faulty!

We are hearing similar stories. “I’m starting my bore and the circuit breaker is tripping or fuse is blowing, what should I do?”. We would send a bore electrician ( experienced in pumps and bores ) He has special equipment to test the circuits & windings of the motor. We can do this without winching the pump up. We remind our customers that if it is a fused bore pump motor it may be covered under household insurance. Also if the fault is storm related even damage from lightning induction that then this too may be subject to an insurance claim.

To have the matter attended to first by specialist bore repairers who can correctly diagnose the fault and possible cause call the team on 9246 0111 or visit our website on www.virginbores.com.au

Submersible bore pump electrical

When a submersible pump is assembled one of the most critical things to get  right is the electrical connection that will spend its life under water.  Most submersible bores in Perth have this underwater connection done using a  heat shrink kit. The submersible motor has a factory installed “blue lead”  which is connected to the electrical cable that will come all the way up
from the pump to the bore head at the surface.

Crimping submersible bore electrical cable
Crimping submersible bore electrical cable

Seen here is the factory lead first being crimped to the electrical cable and then the waterproof heat shrink kit is applied. These are a series of sleeves which are essentially  shrunk over the cable joins provided a waterproof connection.

 Waterproof heat shrink joining motor lead to bore electrical cable
Waterproof heat shrink joining motor lead to bore electrical cable

A separate stainless steel cable holds the weight of the submersible pump so
no stress is placed on this electrical joint. Sometimes in old submersible bores incorrectly joined electrical cables can be a source of trouble. Our  bore electricians are well equipped to diagnose and repair any electrical
problem you may have with your bore or pump.

For repair or installation of replacement submersible pumps in any Perth suburb call us on 92460111 or 0408 454130. Further info about our Perth Water bore services and drilling of new bores can be found here.