When an ISAR 3 system fails, it is not always the remote at fault. The receiver unit fitted to the vehicle can also be defective. This guide helps you tell the two apart before you send anything in.
Transmitter or receiver – which is at fault?
The remote (transmitter) sends commands by radio to the receiver unit on the vehicle, which then actuates the tipping function. A fault can sit on either side. A simple test: if several different remotes do not work on the same vehicle, the receiver unit is most likely the problem. If one remote fails on several vehicles, the remote is the likely cause.
Typical symptoms of a faulty receiver unit
- No remote responds on the vehicle, even tested ones.
- The tipping function reacts erratically or with a delay despite a working remote.
- Pairing repeatedly fails although the remote is in order.
- Visible damage, corrosion or moisture at the receiver or its wiring on the vehicle.
How to narrow down the problem
Test with at least one remote you know works (fresh batteries, short distance, clear line of sight). If it still does not work, the receiver unit or its wiring on the vehicle should be checked. This part is mounted on the vehicle and is usually inspected by a specialist workshop – not sent in like the remote.
And if the remote is faulty?
If the test points to the remote, you are in the right place: send it in for diagnosis or order a repaired ISAR 3 directly via our exchange system – with a full test and 12-month warranty.
Frequently asked questions
Does ControlRepair24 also repair the receiver unit?
We specialise in the ISAR 3 remote control. The receiver unit on the vehicle is best checked by a specialist workshop, as it is integrated into the vehicle electrics. We are happy to help you narrow down the fault.
How can I quickly tell which side is faulty?
Cross-test: one remote on several vehicles, several remotes on one vehicle. The constant in the failure (always the same vehicle vs. always the same remote) points to the faulty side.