Bosch Hot Water Fault or Error Code CA

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Bosch Hot Water Heater Fault or Error Code CA Troubleshooting Guide

When you purchase a Bosch gas continuous flow hot water heater you are purchasing a quality and durable appliance backed by over 127 years of technological advancement. But, as with any appliance, sometimes faults can occur.

Bosch hot water system

If you chose to have the optional hot water temperature controller installed with your Bosch gas hot water heater then the system will self-diagnose any faults within the appliance and display a fault code.

The fault code will blink on the digital monitor of the temperature controller with each code indicating a separate issue within the hot water system. This handy feature allows for prompt action and repair of your hot water heater before the problem has time to escalate.

One of the Bosch hot water error codes which may display is the fault code CA.

What does the fault code CA indicate for my Bosch hot water heater?

If the error code CA is flashing on the status monitor of the water temperature controller this is an indication that the water flow within the unit is above its maximum required value. If your water pressure is too high this could decrease the life of the hot water heater, increase your energy bills and/or cause leaking within your pipes.

You can attempt to clear any Bosch fault code by turning off the main power to the unit, fully opening your hot water tap and then turning the unit back on. If the Bosch fault code CA is cleared then it may have been a trip of the system.  If the code remains then you will need to call in a qualified technician.

Troubleshooting the Bosch CA fault code

To resolve the Bosch CA error code display you will need the services of a qualified plumber to inspect the hot water system.

If you want a prompt, reliable and affordable service on the same day that you make your plumber booking then call Jim’s Plumbing.

At Jim’s Plumbing we have a team of fully qualified and licensed hot water plumbers ready and waiting to assist across all metropolitan suburbs of Adelaide, Melbourne, Perth, Sydney, Brisbane and Canberra.

We provide a same day service, with normal rates until 7.30pm on weekdays and we’re available 24 hours a day, 7 days a week, including all public holidays.

We understand that emergency plumbing situations don’t usually happen between the hours of 9am-5pm only.

If you do have a gas or plumbing emergency then your local plumber from Jim’s can be knocking on your door within an hour* of your call.

Your attending plumber from Jim’s will inspect your continuous flow hot water heater to find the fault causing the Bosch error code CA. If necessary, a pressure limiting relief valve will be installed. When you call Jim’s Plumbing you are guaranteed a quality service with customer satisfaction our top priority.

Phone today, anytime, on 1300 133 509 or complete our convenient online booking form and we’ll call you back at no cost to you.

No Interest Ever!* Payment Plan Options Available

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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Please be advised that we may have additional Bosch Hot Water System models available.

Simply book a plumber online now, or phone 1300 133 509 to book now.

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No Interest Ever!* Payment Plan offered through Certegy Ezi-Pay Express. No Interest Ever on your hot water heater replacement or new supply and installation, gas service, water service or drain replacement. Conditions apply.

Information on this page is subject to change. Commercial hot water systems also available on enquiry.

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