Bosch Hot Water Fault or Error Code A1

Bosch Hot Water Heater Fault or Error Code A1 Troubleshooting Guide

If you chose to add the optional hot water temperature controller when your Bosch hot water heater was installed then you have the convenience of knowing exactly what is wrong with your hot water heater should any fault arise within the system.

Bosch hot water system

Bosch hot water fault codes are an advanced self-diagnostic feature of the Bosch continuous flow hot water heater range.

When a problem occurs within the hot water unit an error code will flash on the water temperature controller. Each code refers to a specific fault.

The Bosch hot water fault code display allows for a prompt repair on your hot water heater as the problem is known at a glance, rather than having to fully inspect the entire hot water heater to understand where the fault may lie.

One of the Bosch error codes that may be displayed is code A1.

What does the fault code A1 on my Bosch tankless hot water heater indicate?

Bosch error code A1 will blink on the digital monitor of your water temperature controller when the temperature within the hot water heater housing is higher than average. This usually indicates that that heat exchanger has either become calcified, or a build-up of soot on the heat exchanger has occurred.

When the Bosch fault code A1 is present your continuous flow hot water heater will automatically regulate its performance to avoid the system from overheating.

What is a heat exchanger?

The heat exchanger is one of the hardest working parts within a continuous flow hot water heater. When a hot water tap is turned on the unit’s sensor will detect the water flow. The systems gas burner will then be signalled to light and the heat exchanger warms the flowing water as it passes its way through to reach your tap. Providing you with a stream of continuous hot water until you turn your hot water tap off, and the unit will automatically turn off.

If the heat exchanger becomes damaged then your water will not be heated. This makes it important to have any issues with the heat exchanger repaired upon first signs.

How do I clear the Bosch error code A1 on my hot water heater?

To clear the Bosch fault code A1 you will require the services of a fully qualified technician to inspect your hot water appliance. The systems heat exchanger will be cleaned to rectify the error code A1 and have your hot water system working at its optimal level once more.

A Bosch hot water error code A1 is often only seen in hot water heaters that are past their service life. A hot water unit should be serviced according to manufacturer’s instructions, which is usually once every two years. Periodic servicing on your appliance will keep the heat exchanger sediment free and ensure that all parts are working correctly, providing longer life and reliability.

Call a Bosch Continuous flow hot water heater expert

For a reliable and affordable resolve of the Bosch fault code A1 on your hot water heater call the experts from Jim’s Plumbing.

We can come to your location any time of the day or night with our 24 hour, 7 day a week plumbing service. We offer a same day arrival, or within the hour* in an emergency – including having a plumber available on public holidays.

Covering all metropolitan areas of Adelaide, Melbourne, Perth, Brisbane, Sydney and Canberra are your professional, trustworthy and friendly hot water plumbers from Jim’s Plumbing. Call us today, or book online.

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