Bosch Hot Water Fault or Error Code C7

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Bosch Hot Water Heater Fault or Error Code C7 Troubleshooting Guide

A faulty fan is the cause of that Bosch error code C7 flashing on the status monitor of your continuous flow hot water heater controller. In most cases your hot water heater will cease to operate, or only cold water will be provided, until the fan fault is repaired.

Bosch hot water system

The way that certain Bosch continuous flow hot water heaters operate is you turn on your hot water tap, a water flow sensor detects the flow and the combustion fan will start up to draw air in to begin the combustion process.

The igniter is then triggered to spark a flame to allow the heat exchanger to heat the water as it passes through. If the combustion fan is faulty then the process cannot continue and the appliance will turn off to prevent any unsafe gas accumulation.

How is a Bosch error code C7 rectified on my tankless hot water heater?

You can test to see if the Bosch hot water fault code C7 is displayed in error by simply turning the power to the appliance off, fully opening a hot water tap and then turning the appliance power back on. If the code C7 is still flashing on the digital monitor of your Bosch water temperature controller then a fully qualified technician will be required to rectify the issue.

Call a local plumber from Jim’s Plumbing – available 24/7

If you want your hot water heater back up and running on the same day that you call a plumber then call the Bosch hot water experts from Jim’s Plumbing.

We guarantee a same day plumbing service, covering all metropolitan suburbs of Adelaide, Melbourne, Perth, Sydney, Brisbane and Canberra.

If it’s an emergency and you need a plumber ASAP then you can expect one of our Jim’s Plumbing professionals to be pulling into your driveway within an hour* of your call – no matter the time of the day or night.

We’re here for you 24 hours a day, 7 days a week.  Is it a public holiday? That’s ok with us – we always have a plumber available near you 365 days of the year.

To troubleshoot the Bosch fault code C7 your attending plumber from Jim’s will investigate your hot water system to check for any loose or damaged connections. They will ensure that the fan is properly connected to the systems electronic control unit and that no blockages or debris is present.

Should any parts be required to be replaced our plumbers will usually have everything they may need stocked in their mobile plumbing vans – meaning less downtime for you.

It is highly important that you do not attempt hot water heater repairs yourself, unless you are qualified to do so. To check the fan within the Bosch continuous flow unit the appliance’s front panel will need to be removed, which will expose 240 V wiring.

Don’t put your home, your safety and your hot water heaters warranty in jeopardy.

Just pick up the phone and call Jim’s Plumbing for a fast, reliable and affordable resolve of your Bosch C7 hot water error code, 24/7.

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No Interest Ever!* payment plan options available on hot water heater replacements to help ease any financial stress this burden may cause. If your bosch hot water heater is leaking, or you have no hot water, we can often have a plumber to you within the hour*.

Choosing the Correct Hot Water System

Choosing the correct hot water system can be difficult, as there are so many options to choose from; Click on the links to find out more about these systems.




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