Fault code HC01 then flash to F03 - Vulcan Heating & Cooling

F03 Front thermistor open or
short circuit.
• Check security of module connector J12;
• Test from connector pins (approximately 500 Kohms);
• If open or short circuit, test thermistor and wiring between
thermistor and J12 to locate fault.

I managed to resolve that problem. When you have BOTH F53 and F03 error codes, it's not a sensor fault (although F03 is the big cavity sensor and F53 is the top one)... it's a faulty capacitor trouble. On the main board there are 4 electrolytic capacitors, just replace all of them and you're ok again. It's quite simple and very cheap. :-)

Not sure that the model you have given is correct, but generally F03 on an older Bosch machine indicates the the pump out has exceeded the allocated time, check the filter, hoses and outlet connection for debris, foreign objects etc.

I assume the heater has been installed for a year or more therefore, F1is the fault number O4 is the fault code and this 04 means the auto over temp has been tripped due to poor airflow through the heater. (the rear of the heater is getting above 65 deg C)

Check all outlets and remove any filter in the outlets.

Remove the return air filter clean if fitted.

On 4 & 5 star heaters check fan speeds are set correctly on control, low fan 27 to 30 and high fan 35. (download customer manual from climate technologies website) 70% of outlets capacity must be open at any time.

Check if the ductwork has been obstructed in any way.

Have the room fan checked and the auto high limit changed by a qualified person. Have a Carbon monoxide test done every 2 years.

Hi

Code F03 usually means that the oven temperature sensor is 'open circuit', that is not working at all.

The remedy is to have it replaced.

If your lights are flashing, use these codes to pinpoint the error.

These codes are reading from the top neon down.

F01....OFF, OFF, OFF, Flash, OFF.
F02....OFF, OFF, Flash, OFF, OFF.
F03....OFF, OFF, Flash, Flash, OFF.
F04....OFF, Flash, OFF, OFF, OFF.
F05....OFF, Flash, OFF, Flash, OFF.
F06....OFF, Flash, Flash, OFF, OFF.
F07....OFF, Flash, Flash, Flash, OFF.
F08....Flash, OFF, OFF, OFF, OFF.
F09....Flash, OFF, OFF, Flash, OFF.
F10....Flash, OFF, Flash, OFF, OFF.
F11....Flash, OFF, Flash, Flash, OFF.
F12....Flash, Flash, OFF, OFF, OFF.
F13....Flash, Flash, OFF, Flash, OFF.
F14....Flash, Flash, Flash, OFF, OFF.
F15....Flash, Flash, Flash, Flash, OFF.
f16....OFF, OFF, OFF, OFF, Flash.
F17....OFF, OFF, OFF, Flash, Flash.
F18....OFF, OFF, ON, OFF, OFF. Fault on control board, check Eeprom.
these are the codes and this is what they mean

f01 light 4, motor triac
f02 light 3 motor, jammed/ tacho
f03 lights 3&4 Ntc fault
f04 light 2. pressure sw stuck on empty
f05 lights 2&4, pressure sw stuck on full
f06 lights 2&3, N/A?
f07 lights 2&3&4 heater relay
f08 light 1. heater relay
f09 lights 1&4 eprom/setup error
f10 lights 1&3, pressure switch not sensing
f11 lights 1&3&4, pump/draining error
f12 lights 1&2, communication error
f13 lights 1&2&4, dryer ntc/ fan motor
f14 lights 1&2&3, dryer heater
f15 lights 1&2&3&4, dryer heater relay
f16 N/A
f17 light 4, door lock
f18 light 3 comms error (3 phase motor) power board

also try checking this manual
http://imagebank.indesitcompany.co.uk/brochures_online/pdf/Hotpoint/Laundry/WFseries_19504110305_Jan05_book.pdf

This is a printout of the fault codes

System Fault indicator is on and all other
front panel indicators are flashing.

Internal UPS fault. One of nine Internal UPS Fault Messages is displayed:
F01 - On-Battery Overload F06 - Relay Welding
F02 - On-Battery Output Short F07 - Temperature
F03 - On-Battery XCap Overload F08 - Fan Fault
F04 - Clamp Short F09 - Internal Fault
F05 - Charger Fault

No drum rotation signal. A shop visit is required. Sorry..accordianman

Indesit washing machine error code 3 (F03) On certain Indesit washing machines, if the on off light is flashing 3 times, with a slight pause, followed by flashing a further 3 times, or if it is didplaying F03 you have an error code that is explained as follows -
NTC fault - check Thermistor and module connections.
The NTC is the thermistor, which is a modern-day thermostat. It’s inserted into a tube in the heating element and is filled with heat sensitive crystals that change their electrical resistance according to their temperature. By knowing what electrical resistance the crystals have at given temperatures they can tell the water temperature.
With this fault the NTC is either faulty, or there’s a dodgy connection to or from it or there’s 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.

f03 error is a sensor error.you could have taken an ohm reading on the thermistor to see if it was bad.if you replaces the t-mistor then the only other component responsible is the board.make sure all the connections on the board are clean and tight before you replace it.