Modern washing machines indicate error codes by one of 3 ways. The more basic ones usually flash a single light a set number of times in a cycle – eg. Error F03 might be indicated by the door lock neon light flashing 3 times, pausing for half a second or so and repeating. Other models display the error code in a digital display – eg. F03. Some can also indicate error codes using a combination of flashing option lights
The Hotpoint WD (& WF) range of washing machines can indicate error codes using the last method. Here’s an example of a model WD 440G with the following option buttons
1. Drying High Heat
2. Reduce Creases
3. Rinse Hold
4. Time Saver
5. Extra Rinse
Where number 3 and number 4 lights are flashing (as well as the on off switch) this indicates error code F03 = “NTC fault – check Thermistor and module connections”
What is an NTC?
I have a description of the NTC on another error code article here – Indesit washing machine flashing 3 times – error code F03 (Indesit & Hotpoint are the same company now) Here’s the relevant information -
The NTC is the thermistor, which is a modern-day thermostat. It’s sometimes inserted into a tube in the heating element between the main live and neutral connections and sometimes it can be a small round stat close by. It is filled with heat sensitive crystals which change their electrical resistance according to their temperature. By knowing what electrical resistance the crystals have at given temperatures the washing machines pcb can tell the exact water temperature.
With this fault the NTC is likely to be either faulty (open/short circuit), or there’s a dodgy connection to or from it, or maybe even a connection problem where it connects to the main PCB.
It’s not something you can easily fault find yourself unfortunately, apart from if there was an obvious broken wire.
Related link: Find an appliance repairer on Washerhelp