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7.1.5 Fault Code E3 - Over Temperature Fault
1. Check the temperature of the incoming water
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
o
F (60
o
C).
2. Check the resistance of the temperature sensor
(pins 1 & 2 of the P101 harness connector).
It should be approximately 10k Ω at 25
o
C
(refer page 57)
3. Check the heater plate resistance to ensure
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)
4. Replace the heater plate. Fill the tub with approx
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.
5. If the E3 fault still occurs, then replace the
controller.
Pin 2 Pin 1
Pin 6
7.1.6 Fault Code E4 - Heater Plate Fault
1. Check the harness connections at the controller
and heater plate for signs of water damage,
corrosion or arcing. Replace if damaged.
2. Check the resistance of the element track and
dropper resistor.
3. Heater track P101 pin 6 and the neutral pin on the
power plug.
4. Dropper resistor harness P101 pins 4 & 5
(Refer page 57)
Component NZ,AU,UK,EU US,CA,TW
Heater Track 50 24
Dropper Resistor 98 24
5. If either of these values are outside of their
specication replace the heater plate.
6. If the E4 fault still occurs then replace the
controller.
NOTE: For more detailed component testing, refer to page 57.
Fault Code E4 - Sub Code 01 - Element Timed Out
Fault Code E4 - Sub Code 02 - Dropper Resistor Open Circuit
1. Check element track, if OK then replace the controller.
1. Check dropper resistor, if open circuit then replace the element assembly ( refer section 9.18)