Why does my fan relay keep going bad?
Common causes for relays failing to operate might be: Failure of the computer, temperature switch, or relay control module that turns the relay on or off. Relay failure due to high current draw from a partially shorted fan motor or intermittently shorted fan circuit.
What are the common faults and problems of an electric fan?
Most common ceiling fan problems
- Flickering light. Ceiling fans with light fixtures have a common problem of flickering.
- Wobbly ceiling fan. Wobbly ceiling fans look they might fall off your ceiling at any moment.
- Noisy operation.
- Stuck on one speed.
- Ceiling fan doesn’t turn on.
What causes a cooling fan relay to stop working?
Cooling fan relays can stop working for any number of reasons. Common causes for relays going bad include: There are several ways to tell if a bad cooling fan relay is to blame for an overheated engine. The easiest method is to start the engine and then turn on the air conditioning.
What should the resistance of a fan relay be?
A normal relay’s resistance will read between 40 to 80 ohms. Higher resistance levels warn that the coil has started to fail while lower readings mean the relay has broken down. Still another DIY test involves shaking the cooling fan relay and listening for any noises.
Why are my cooling fans running at all times?
3. Cooling fans stay on at all times. If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
What happens when a radiator relay goes bad?
A faulty or broken relay cannot deliver power to the cooling fans. In turn, the unpowered fans won’t run, leaving the radiator to its own devices. Deprived of the helpful influx of air from the cooling fans, the radiator cannot remove as much heat as it usually does.