When I've had the CH on a few hours I sometines get the number 506 on the LED readout, any idea what it means.
The booklet doesn't mention it as an error code. Is it overheating ? , if I switch the CH off after a while the readout goes back to say what the hot water reading is.
The booklet doesn't mention it as an error code. Is it overheating ? , if I switch the CH off after a while the readout goes back to say what the hot water reading is.