Fisher & Paykel DishDrawer DD247 Service Manual page 48

48
7.1.5 Fault Code E3 - Over Temperature Fault
Check the temperature of the incoming water
1.
supply, for all markets, except the USA, cold
water is recommended. If connected to the
hot water supply, ensure the incoming water
temperature is below 140
Check the resistance of the temperature sensor
2.
(pins 1 & 2 of the P101 harness connector).
It should be approximately 10k Ω at 25
(refer page 57)
Check the heater plate resistance to ensure
3.
it is correct for the market on P101 pin 6
and the neutral pin on the power plug.
50 Ω (NZ,AU,EU,UK)
24 Ω (US,CA,TW)
Replace the heater plate. Fill the tub with approx
4.
2.5L (0.7 gal) of water and turn the product on.
If the product starts to heat without the heater
plate being enabled, then this would indicate a
fault with the controller.
If the E3 fault still occurs, then replace the
5.
controller.
7.1.6 Fault Code E4 - Heater Plate Fault
Check the harness connections at the controller
1.
and heater plate for signs of water damage,
corrosion or arcing. Replace if damaged.
Check the resistance of the element track and
2.
dropper resistor.
Heater track P101 pin 6 and the neutral pin on the
3.
power plug.
Dropper resistor harness P101 pins 4 & 5
4.
(Refer page 57)
Component
Heater Track
Dropper Resistor
If either of these values are outside of their
5.
specification replace the heater plate.
If the E4 fault still occurs then replace the
6.
controller.
Fault Code E4 - Sub Code 01 - Element Timed Out
Check element track, if OK then replace the controller.
1.
Fault Code E4 - Sub Code 02 - Dropper Resistor Open Circuit
Check dropper resistor, if open circuit then replace the element assembly ( refer section 9.18)
1.
NOTE: For more detailed component testing, refer to page 57.
F (60 C).
o o
C
o
NZ,AU,UK,EU US,CA,TW
50
98
Pin 6
24
24
Pin 2 Pin 1