Molly Ayala
If your electric shower keeps tripping, it could be due to a number of reasons. The most common cause is an overloaded circuit breaker, which occurs when a circuit is overloaded with more electricity than it can handle. This can be caused by a faulty thermostat inside the heater, which causes both the upper and lower heating elements to turn on at the same time, leading to high energy consumption. Another reason could be faulty wiring, which can be dangerous and cause a short circuit. In some cases, the issue may lie with the shower itself, such as internal electrical faults or damage to the cable supplying the shower. To resolve these issues, it is recommended to hire a professional electrician to inspect the shower and circuit breaker to ensure a safe and effective solution.
Why does my electric shower keep tripping?
| Characteristics | Values |
|---|---|
| Internal fault in the shower | Faulty heating element, water entering the live electrical part of the element |
| Fault in the cable supplying the shower | Damage during installation |
| Overload | Circuit overloaded by other energy-hungry appliances being on at the same time, such as hair dryers, portable heaters or microwaves |
| Short circuit | Faulty wiring |
| Breaker size | Breaker not sufficient for the shower |
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What You'll Learn
Faulty wiring or RCD
One of the reasons your electric shower keeps tripping could be faulty wiring or RCD. A short circuit is caused by faulty wiring, which is why it is the most dangerous and urgent cause. This happens when a hot wire touches a neutral wire, causing a large amount of power to surge through the circuit, resulting in a trip. This can even damage appliances, including your shower's electric water heater. Since the problem isn't directly related to the shower or water heater, a professional electrician is highly recommended to fix the wiring in the affected area.
In some cases, the issue may not be with the wiring but with the Residual Current Device (RCD) itself. The RCD is a crucial safety device that protects you from electric shocks. It monitors the incoming and outgoing currents, and if it detects an imbalance, it will immediately trip the circuit, cutting off the power supply to prevent any harm. If your RCD is tripping frequently, it may be a sign that it needs to be replaced.
To determine whether the issue is with the wiring or the RCD, you can perform some basic checks. First, ensure that the problem is specific to the shower by testing other appliances on the same circuit. If they work without tripping the RCD, it's likely that the issue is related to your shower. Next, check the wiring connections to the shower. If you notice any loose connections, damaged wires, or signs of corrosion, this could be the source of the problem.
If you suspect faulty wiring, it is essential to contact a qualified electrician. They will be able to safely isolate the circuit, identify the location of the short circuit, and repair or replace the affected wiring. It is important not to attempt to fix electrical issues yourself, as it can be extremely dangerous and cause further damage.
In the case of a faulty RCD, it is also advisable to consult an electrician. They can test the RCD to confirm if it is faulty and replace it if necessary. A functioning RCD is crucial for your safety, as it provides protection against electric shock and electrical fires.
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Overload on the circuit
Electric showers draw a lot of power, and if your shower is tripping the circuit breaker, it could be due to an overload on the circuit. This is a common issue, especially in older homes where the electrical wiring may not be equipped to handle the high power demands of modern appliances. An electric shower typically requires a dedicated circuit to function properly and avoid overloading.
If your shower is on the same circuit as other high-power appliances, such as a washing machine, dryer, or kettle, it can trip the breaker. The combined current draw may exceed the capacity of the circuit, causing an overload and tripping the breaker. To prevent this, ensure that your electric shower is the only appliance on its circuit. If it is already on a dedicated circuit and still trips the breaker, the circuit may be damaged or unable to handle the load.
In this case, it is important to contact a qualified electrician to inspect and upgrade your wiring if necessary. They can also check for any faulty connections or damaged components in your shower's wiring, which could be causing the overload. It is important to address this issue promptly, as overloaded circuits can be a fire hazard.
Additionally, you can try to lower the shower's power settings to reduce its electrical demand. However, if this doesn't resolve the issue and the shower still trips the breaker, it may be that the unit requires replacement or that there is an underlying issue with your home's electrical system. Again, consulting a qualified electrician is the safest course of action.
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Faulty heating element
A faulty heating element could be the reason why your electric shower keeps tripping. This is usually indicated when the RCD trips only when the shower temperature is set to hot. In such cases, water may have entered the live electrical part of the element.
To fix this, you can either replace the heating element or the entire shower unit. If you choose to replace the heating element, it is advisable to hire a professional electrician to do so, as they can correctly test the circuit with the appropriate equipment. Attempting to handle electrical wiring and repairs yourself can be extremely dangerous and cause serious damage.
If you opt to replace the shower unit, it is important to ensure that the new unit is compatible with your electrical system. For example, a 10.5kW shower requires a breaker of at least 45/50A with 10 or 16 mmsq wire.
In some cases, the tripping issue may not be due to a faulty heating element but rather an overloaded circuit. This can occur when the shower is pulling more amps than the breaker can handle, or when multiple energy-intensive appliances are being used simultaneously. To avoid overloading, reduce the amount of hot water flowing from the shower and refrain from using other appliances while someone is in the shower.
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Faulty thermostat
One of the reasons your electric shower keeps tripping could be a faulty thermostat. An electric shower has two heating elements, one above and one below, and only one should be active at a time. However, a faulty thermostat can cause both to turn on at the same time, drawing a lot of energy and tripping the circuit breaker.
The thermostat's role is to regulate the water temperature, and when it malfunctions, it can cause the heating elements to work erratically, leading to an overload. This overload occurs when the circuit is forced to draw more electricity than it can safely handle. As a safety precaution, the circuit breaker will trip to prevent any potential hazards.
If you suspect a faulty thermostat, it is essential to contact a professional electrician. They will inspect the shower and determine if the thermostat is the root cause of the tripping issue. A qualified electrician will have the knowledge and tools to diagnose the problem accurately and suggest the best course of action.
In some cases, repairing the faulty thermostat may be an option, but often, replacing the entire electric water heater is a more reliable solution. A professional electrician will be able to guide you in making an informed decision based on the specific circumstances. They can also advise on the appropriate specifications for your new shower unit to prevent similar issues in the future.
While it may be tempting to attempt repairs yourself, it is crucial to prioritize safety. Electric showers and their components can be intricate systems, and incorrect handling can lead to dangerous consequences. Therefore, consulting a specialist is always the recommended course of action to ensure a safe and effective resolution to your shower tripping problem.
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Faulty shower unit
If your electric shower keeps tripping, it could be due to a faulty shower unit. This can be caused by a number of factors, including:
Internal Fault
An electrical fault within the shower unit can cause the trip switch to activate. This could be due to a problem with the heating element, which may be faulty and allowing water to enter the live electrical parts. In some cases, it may be necessary to replace the entire unit if the fault cannot be repaired.
Overload
Overload is another common cause of electric showers tripping. This occurs when the circuit is trying to handle more electricity than it can manage. Electric showers require a lot of electricity to heat up the water, and if the water is set to a very hot temperature, it can overload the circuit and cause the breaker to trip as a safety precaution. This is more likely to occur if other high-energy appliances are being used simultaneously, such as hair dryers or portable heaters.
Short Circuit
A short circuit is caused by faulty wiring, where a hot wire touches a neutral wire, resulting in a power surge and a tripped breaker. This issue may not be directly related to the shower unit itself, but it can still cause the shower's electric water heater to malfunction. In such cases, it is recommended to hire a professional electrician to locate and fix the short circuit.
Breaker Size
The size of the breaker installed may not be sufficient for the power requirements of the electric shower. For example, a shower pulling 46 amps may trip a 32-amp breaker after a certain amount of time. Upgrading to a larger breaker, such as a 45- or 50-amp option, may resolve the issue.
If you suspect that your electric shower is tripping due to a faulty unit, it is important to contact a qualified electrician to inspect the shower and advise on any necessary repairs or replacements.
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Frequently asked questions
There are a few reasons why your electric shower may keep tripping. The most common reason is an overload. This happens when a circuit is overloaded with more electricity than it can handle. Another reason could be faulty wiring, which can cause a short circuit. Other reasons include a faulty thermostat, a damaged cable supplying the shower, or a fault with the shower unit itself.
To prevent your electric shower from tripping, avoid keeping the water temperature too high and reduce the amount of water coming out. Also, avoid turning on other appliances while someone is in the shower, as this can overload the circuit.
If your electric shower keeps tripping, it is recommended to hire a professional electrician to inspect the shower and fix any issues. They will be able to determine if it is a problem with the wiring, the thermostat, or the shower unit itself, and advise on the best course of action.
It is not recommended to attempt to fix an electric shower that keeps tripping yourself, especially if the issue is related to electrical wiring or repairs. Handling electrical wiring can be extremely dangerous and cause serious damage. Always consult a professional electrician to diagnose and fix the issue.
