How do I reset my Kenwood radio?
What is HF error?
An F20 or FH error code indicates a water supply problem. Here are some common issues: Both hot and cold water must be connected and turned on. Water inlet hoses kinked. Water inlet valve screen clogged.
What causes a Kenwood radio to go into protect mode?
Kenwood equips its receivers with a protection mode to safeguard them. Your stereo receiver is going into protection mode because the receiver has an internal short, a speaker is bad or the speaker wiring has a problem, such as incorrect wire gauge or bad connections.