Bosch Hot Water Fault or Error Code A7

Bosch Hot Water Heater Fault or Error Code A7 Troubleshooting Guide

Are you experiencing no hot water, or temperature fluctuations, with your Bosch continuous flow hot water heater? If you opted to install the optional water temperature controller than have a look at the digital monitor.

Bosch hot water system

An error code will display in the event of any fault within the system. One of the Bosch error code displays that you may come across is fault code A7.

What does the Bosch hot water heater error code A7 indicate?

Fault code A7 flashing on the status monitor of your temperature controller indicates a faulty hot water outlet temperature sensor.

Bosch continuous flow hot water systems are fitted with two water temperature sensors – inlet and outlet sensors. These water temperature sensors measure the incoming cold water and outgoing hot water to ensure the correct hot water temperature delivered to you is monitored and maintained.

If there is a fault with the hot water outlet temperature sensor Bosch error code A7 will display. You may also experience temperature fluctuations or cold showers, as the temperature is unable to be measured correctly within the unit.

Can I clear a Bosch fault code A7 on my gas hot water heater?

The Bosch A7 error code will require the services of a fully qualified technician to investigate and rectify the issue with the hot water outlet temperature sensor.

You can attempt to clear the code yourself, if it is merely a trip of the system, by turning the system’s power off, opening a hot water tap fully and then turning the power back on. If the Bosch error code A7 remains then it’s time to call in an expert.

(Be mindful that if you are experiencing other issues – such as no hot water, then it is doubtful that the A7 fault code is showing in error.)

If fault code A7 remains who can I call to repair?

For a fast, reliable and affordable resolve of the error code A7 on your Bosch tankless hot water heater call in a hot water expert from Jim’s Plumbing.

When you book a local plumber from Jim’s Plumbing you are guaranteed a same day service.

In a gas or plumbing emergency you can expect a fully qualified plumber to be knocking on your door within the hour* of your call.

We cover all metropolitan areas of Adelaide, Melbourne, Perth, Sydney, Brisbane and Canberra with availability spaning 24 hours a day, 7 days a week, 365 days of the year.

All of our highly skilled and experienced plumbers are trained in all aspects of hot water heater repairs, replacements and new installations. We can have any Bosch fault code displaying on your hot water heater rectified with minimal stress or downtime to you, including Bosch hot water error code A7.

Your attending plumber from Jim’s will inspect your hot water heater to check if there are any loose or broken connections in relation to the hot water outlet sensor and the PC board. The outlet sensor will be checked for any scale build-up or corrosion, and will be repaired or replaced as necessary. You’ll be back in a fluctuation-free and HOT shower again before you know it.

Call us anytime, 24/7, on 1300 133 509 or complete our easy online plumber booking form and we’ll phone you back at no cost to you.

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