Model # dwu7702aae has heat delay light coming on during cycle. Why?

The Control is programmed to stop running and not allow any further cycles if it detects a water heating problem (no temperature increase detected in heated Main Wash on 3 consecutive cycles). The Control will flash the Clean LED 7 times repeatedly and will disable the Start/Resume key until cleared.

To clear and reset the control press in this order: Heated Dry ? Normal ? Heated Dry ? Normal and then let the unit run for 1-2 minutes and then press Cancel and let the dishwasher complete the cancel cycle. The dishwasher should operate normally again unless it does not detect a temperature rise in the main wash cycle.

It could be caused by a Heater circuit problem if it continues to stop and flash the Clean light.

It could have one of the following failures:
Open in heater.
Open connection or component in heater circuit.
Faulty heater drive circuit on control.
It can also be caused by the wash pump not pumping water past the heater efficiently.

The heating element is burned out or the heating circuit is fubar.

Door latch.
Open and close the door to make sure the door latch is securely fastened

Hi-Temp Wash, Hi-Temp Rinse, or Sanitize options.
Some models have options that may require a water heating delay, such as Hi-Temp Wash, Hi-Temp Rinse, or Sanitize. Additional time may be required to heat the water to the proper temperature. The dishwasher will continue to circulate water during this heating delay but the timer will not advance until the proper temperature is reached

It is in a delay wash mode.
Disconnect power for 60 seconds.
Re-connect power.
Press the Cancel button.
Press the regular wash cycle and start the dw.

ALARM CODES

E11 Problems with water fill in wash phase E10 Cycle PAUSED 8.2
E12 Problems with water fill in drying E10 Cycle PAUSED 8.3
E21 Problems with water drain in wash phase E20 Cycle PAUSED 8.4
E22 Problems with water drain during drying or drying
condenser blocked E20 Heating phase skipped 8.5
E31 Analogic (electronic) pressure switch circuit faulty --- Cycle blocked
with door closed 8.6
E32 Incorrect calibration of analogic (electronic) pressure
switch --- Cycle PAUSED 8.7
E33
Incongruency between level of analogic (electronic)
pressure switch and level of anti-boiling pressure
switch 1
--- Cycle blocked
with door closed 8.8
E34 Incongruency between level of electronic pressure
switch and level of anti-boiling pressure switch 2 --- Cycle blocked
with door closed 8.9
E35 Water level too high --- Cycle blocked with door
closed and water drain 8.10
E36 "Sensing" circuit of anti-boiling pressure switch 1 faulty --- Cycle blocked
with door closed 8.11
E37 "Sensing" circuit of anti-boiling pressure switch 2 faulty --- Cycle blocked
with door closed 8.11
E38 Pressure chamber blocked --- Heating phase skipped 8.12
E41 Door open E40 Cycle PAUSED 8.13-14
E42 Problems with door closure E40 Cycle PAUSED 8.15-16
E43 TRIAC which powers the door interlock faulty E40 Cycle PAUSED 8.17-18
E44 "Sensing" circuit of door delay interlock faulty --- Cycle blocked 8.19
E45 "Sensing" circuit of door delay interlock triac faulty --- Cycle blocked
with door closed 8.19
E51 TRIAC which powers the motor short-circuited --- Cycle blocked with door
closed (after 5 attempts) 8.20
E52 No signal from tachometric generator --- Cycle blocked with door
closed (after 5 attempts) 8.21-22
E53 "Sensing" circuit of motor TRIAC faulty --- Cycle blocked
with door closed 8.23
E54 Relays (motor) contacts faulty --- Cycle blocked with door
closed (after 5 attempts) 8.23
E61 Insufficient heating during washing --- Heating phase skipped 8.24
E62 Overheating during washing --- Drain, end of cycle 8.25
E63 Insufficient heating during drying Heating phase skipped 8.26
E64 Overheating during drying --- Heating phase skipped 8.27
E66 Power relay to heating element faulty --- Drain, end of cycle 8.28
E71 NTC wash sensor faulty --- Heating phase skipped 8.29
E72 NTC sensor on drying condenser faulty --- Heating phase skipped 8.30
E73 NTC sensor on drying duct faulty --- Heating phase skipped 8.31
E84 "Sensing" circuit on circulation pump triac faulty --- Drain, end of cycle
(door open) 8.32
E85 Circulation pump faulty --- Drain, end of cycle
(door open) 8.33
E91 Communications error between main PCB and user
interface --- --- 8.34
E93 Configuration error E90 Cycle blocked 8.34
E94 Incorrect configuration of washing cycle E90 Cycle blocked 8.34
EF1 Drain filter blocked LED-EF0 --- 8.35
EF2 Excessive detergent LED-EF0 --- 8.35
Regards David Marsh

Sounds like the heating element is not working. Usually the hot water temp is OK for the wash cycle (110 to 140 degrees) but the rinse cycle asks for 140 to 160 which requires the heating element. (As does the dry cycle).

Hi,

• Is the door open or unlatched?
• Is there power to the dishwasher?
• Does your dishwasher have a rotary timer knob?
• Is the control lock option activated?
• Is the delay start option activated?
• Is the water shutoff valve turned on?

Is the door open or unlatched?Make sure the door is completely closed and latched. On models with a dual-digit display, the control displays "- -" during a cycle if the door is not latched. Check for obstructions (spoons or utensils), that may be interfering with the door operation. A lower dish rack that is installed backward will also cause incomplete door closure. The lights for cycles selected will flash if the door is opened while running a cycle.
Is there power to the dishwasher?Check your household electrical box to see if a fuse has blown or if the circuit breaker has tripped. If the unit has a plug-in power cord, make sure it is plugged in.
Does your dishwasher have a rotary timer knob?The cycle selection must match the position of the timer knob. Turn the timer knob to the beginning of the preferred cycle. The timer knob should click when you reach the start of the cycle.
Is the control lock option activated?
The indicator light next to the lock graphic will illuminate when the controls are locked. Press and hold the Heated Dry option (button with lock icon) for three seconds and the light should turn off. Instructions are also placed on the label on top of the inner door to unlock the controls.
Is the delay start option activated?To cancel the delay and cycle, press Start/Cancel twice.
Is the water shutoff valve turned on?Make sure that the water shutoff valve is turned on.

Hello
ALARM CODES

E11 Problems with water fill in wash phase E10 Cycle PAUSED 8.2
E12 Problems with water fill in drying E10 Cycle PAUSED 8.3
E21 Problems with water drain in wash phase E20 Cycle PAUSED 8.4
E22 Problems with water drain during drying or drying
condenser blocked E20 Heating phase skipped 8.5
E31 Analogic (electronic) pressure switch circuit faulty --- Cycle blocked
with door closed 8.6
E32 Incorrect calibration of analogic (electronic) pressure
switch --- Cycle PAUSED 8.7
E33
Incongruency between level of analogic (electronic)
pressure switch and level of anti-boiling pressure
switch 1
--- Cycle blocked
with door closed 8.8
E34 Incongruency between level of electronic pressure
switch and level of anti-boiling pressure switch 2 --- Cycle blocked
with door closed 8.9
E35 Water level too high --- Cycle blocked with door
closed and water drain 8.10
E36 "Sensing" circuit of anti-boiling pressure switch 1 faulty --- Cycle blocked
with door closed 8.11
E37 "Sensing" circuit of anti-boiling pressure switch 2 faulty --- Cycle blocked
with door closed 8.11
E38 Pressure chamber blocked --- Heating phase skipped 8.12
E41 Door open E40 Cycle PAUSED 8.13-14
E42 Problems with door closure E40 Cycle PAUSED 8.15-16
E43 TRIAC which powers the door interlock faulty E40 Cycle PAUSED 8.17-18
E44 "Sensing" circuit of door delay interlock faulty --- Cycle blocked 8.19
E45 "Sensing" circuit of door delay interlock triac faulty --- Cycle blocked
with door closed 8.19
E51 TRIAC which powers the motor short-circuited --- Cycle blocked with door
closed (after 5 attempts) 8.20
E52 No signal from tachometric generator --- Cycle blocked with door
closed (after 5 attempts) 8.21-22
E53 "Sensing" circuit of motor TRIAC faulty --- Cycle blocked
with door closed 8.23
E54 Relays (motor) contacts faulty --- Cycle blocked with door
closed (after 5 attempts) 8.23
E61 Insufficient heating during washing --- Heating phase skipped 8.24
E62 Overheating during washing --- Drain, end of cycle 8.25
E63 Insufficient heating during drying Heating phase skipped 8.26
E64 Overheating during drying --- Heating phase skipped 8.27
E66 Power relay to heating element faulty --- Drain, end of cycle 8.28
E71 NTC wash sensor faulty --- Heating phase skipped 8.29
E72 NTC sensor on drying condenser faulty --- Heating phase skipped 8.30
E73 NTC sensor on drying duct faulty --- Heating phase skipped 8.31
E84 "Sensing" circuit on circulation pump triac faulty --- Drain, end of cycle
(door open) 8.32
E85 Circulation pump faulty --- Drain, end of cycle
(door open) 8.33
E91 Communications error between main PCB and user
interface --- --- 8.34
E93 Configuration error E90 Cycle blocked 8.34
E94 Incorrect configuration of washing cycle E90 Cycle blocked 8.34
EF1 Drain filter blocked LED-EF0 --- 8.35
EF2 Excessive detergent LED-EF0 --- 8.35
Regards David Marsh

Check to make sure you heating element has not failed. Dishwashers of today heat the water periodically through out the cycle and if the element has failed. The heating delay light is the indicator that tells you that it is trying to heat the water.

Hello ALARM CODES Alarm code Description of fault User code Effect E11 Problems with water fill in wash phase E10 Cycle PAUSED 8.2 E12 Problems with water fill in drying E10 Cycle PAUSED 8.3 E21 Problems with water drain in wash phase E20 Cycle PAUSED 8.4 E22 Problems with water drain during drying or drying condenser blocked E20 Heating phase skipped 8.5 E31 Analogic (electronic) pressure switch circuit faulty --- Cycle blocked with door closed 8.6 E32 Incorrect calibration of analogic (electronic) pressure switch --- Cycle PAUSED 8.7 E33 Incongruency between level of analogic (electronic) pressure switch and level of anti-boiling pressure switch 1 --- Cycle blocked with door closed 8.8 E34 Incongruency between level of electronic pressure switch and level of anti-boiling pressure switch 2 --- Cycle blocked with door closed 8.9 E35 Water level too high --- Cycle blocked with door closed and water drain 8.10 E36 "Sensing" circuit of anti-boiling pressure switch 1 faulty --- Cycle blocked with door closed 8.11 E37 "Sensing" circuit of anti-boiling pressure switch 2 faulty --- Cycle blocked with door closed 8.11 E38 Pressure chamber blocked --- Heating phase skipped 8.12 E41 Door open E40 Cycle PAUSED 8.13-14 E42 Problems with door closure E40 Cycle PAUSED 8.15-16 E43 TRIAC which powers the door interlock faulty E40 Cycle PAUSED 8.17-18 E44 "Sensing" circuit of door delay interlock faulty --- Cycle blocked 8.19 E45 "Sensing" circuit of door delay interlock triac faulty --- Cycle blocked with door closed 8.19 E51 TRIAC which powers the motor short-circuited --- Cycle blocked with door closed (after 5 attempts) 8.20 E52 No signal from tachometric generator --- Cycle blocked with door closed (after 5 attempts) 8.21-22 E53 "Sensing" circuit of motor TRIAC faulty --- Cycle blocked with door closed 8.23 E54 Relays (motor) contacts faulty --- Cycle blocked with door closed (after 5 attempts) 8.23 E61 Insufficient heating during washing --- Heating phase skipped 8.24 E62 Overheating during washing --- Drain, end of cycle 8.25 E63 Insufficient heating during drying Heating phase skipped 8.26 E64 Overheating during drying --- Heating phase skipped 8.27 E66 Power relay to heating element faulty --- Drain, end of cycle 8.28 E71 NTC wash sensor faulty --- Heating phase skipped 8.29 E72 NTC sensor on drying condenser faulty --- Heating phase skipped 8.30 E73 NTC sensor on drying duct faulty --- Heating phase skipped 8.31 E84 "Sensing" circuit on circulation pump triac faulty --- Drain, end of cycle (door open) 8.32 E85 Circulation pump faulty --- Drain, end of cycle (door open) 8.33 E91 Communications error between main PCB and user interface --- --- 8.34 E93 Configuration error E90 Cycle blocked 8.34 E94 Incorrect configuration of washing cycle E90 Cycle blocked 8.34 EF1 Drain filter blocked LED-EF0 --- 8.35 EF2 Excessive detergent LED-EF0 --- 8.35 Regards David Marsh