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Bosch Error Code 90

Bosch Hot Water System Fault or Error Code 90 Troubleshooting Guide

Bosch gas hot water systems have an error code feature. If there is a fault, an error code is displayed on the system or temperature controller.

If you have a Bosch system, an error code you may come across is error code 90.

What Does The Bosch Hot Water System Fault Code 90 Indicate?

An error code 90 on your Bosch gas hot water system indicates that there is a problem in relation to abnormal combustion, or a low gas supply pressure.

You can try troubleshooting the problem by following these steps:

  • Pressing the ‘off’ button on the water temperature controller
  • Turning on a hot water tap
  • Pressing the ‘on’ button on the water temperature controller

If error code 90 remains then you will need to call a qualified plumber to assist.

Who Can Rectify A Bosch Hot Water System Error Code 90?

Jim’s Plumbing can address the error code 90 appearing on your Bosch hot water system. Our tradespeople are fully qualified in plumbing and gas fitting, and are trained to work on all Bosch water heaters. If the gas supply is sufficient but the error code 90 still remains then the hot water heater will be checked for any loose or damaged connections or parts, and replacements will be provided as required.

We can have a Jim’s plumber at your location on the same day of your booking, or within the hour* in a plumbing emergency. Our plumbers are available every hour of the day, every day of the year, including all public holidays and can quickly repair your Bosch hot water heater fault codes, including error code 90.

Should a replacement part be required you can rest assured that your attending plumber from Jim’s will come to your location in a fully stocked van; meaning that we rarely need to leave site to source parts – resulting in a prompt and affordable repair. Don’t put up with no hot water for longer than necessary – we know how frustrating that can be!

Trust the experts, and rely on the best from Jim’s Plumbing to quickly rectify your Bosch error code 90 on your gas hot water heater. We provide a fuss-free service with quality workmanship and customer satisfaction guaranteed.

Contact us today and see for yourself why Jim’s Plumbing is one of Australia’s favourite plumbing companies.

1300 133 509


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