Knowledge/Fault finding
Fault finding, and the cause under the code
Read the code, then go and find the cause. Most of these come back to airflow or water, not to the board.
Everything in this section
- Reading Braemar ICS fault codes off the board LEDsGreen flashes count tens, red flashes count ones. Plus the three lockout levels, the service PIN, and the order of checks that finds the real cause.
- Most overheat faults are airflow, not gasBrivis codes 40 to 43 and 53, and Braemar FC10 and FC19, most often come down to restricted airflow. Here's the order I'd check it in.
- Seeley evaporative fault codes, FC01 to FC09All six public codes, which models each one applies to, how to read the LEDs, and Seeley's own warning about using the wrong code table.
- Soft water can be too pure for the cooler's probesMelbourne mains has about 55 mg/L of dissolved solids, a sixth of Adelaide's. So scale matters less here, and very soft water can fool the probes.
- How to read a fault code before you look it upAlmost nobody explains how a code is displayed, only what it means. Here's how to bring the code up on each brand, which is the bit that stalls you on site.
- Daikin fault codes: how they're built, and where to look them up107 codes in a grid, a letter for the part of the system and a digit for the detail. How to read it, and the seven meanings we could confirm.
- Which brands publish their fault codes, and which don'tSome manufacturers put the whole service library online with no login. Others publish nothing you can actually open. That changes how long a fault takes.
Rather just ask someone?
Kevin has been in this industry for 30 years. If the answer isn't here, or you want it applied to a job you're quoting, have a chat.