Hi

You would need to check the wiring to the heating element, use a multimeter and make sure that heating element has voltage when dishwasher has power. If voltage is present then next thing to check is timer; timer might have gone bad or there might be a wiring disconnection to the timer. To check the timer pull the connectors off of the terminals (connected with slip on connectors). Label the wires, you may need to use a pair of needle-nose pliers. Use a multimeter on ohms setting RX1, touch one probe to each wire. A reading in the range of 2,000 to 3,500 ohms is normal.

You can buy the timer from this link--

Belling Dishwasher IDW 602/2 Timer

Hope this helps... Please post back if you need more information.

Daniel Hi

You would need to check the wiring to the heating element, use a multimeter and make sure that heating element has voltage when dishwasher has power. If voltage is present then next thing to check is timer; timer might have gone bad or there might be a wiring disconnection to the timer. To check the timer pull the connectors off of the terminals (connected with slip on connectors). Label the wires, you may need to use a pair of needle-nose pliers. Use a multimeter on ohms setting RX1, touch one probe to each wire. A reading in the range of 2,000 to 3,500 ohms is normal.

You can buy the timer from this link--

Belling Dishwasher IDW 602/2 Timer

Hope this helps... Please post back if you need more information.

Daniel

Also If the cycle doesn't complete, check these:
Water-heating cycle
Timer
Water-heating cycle
Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows:
On some units, the pause is timed and the unit continues after the allotted time.
On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too.
Timer
Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it. Also If the cycle doesn't complete, check these: Water-heating cycle Timer Water-heating cycle Many dishwashers heat the wash and/or rinse water to a higher temperature, as the cycle calls for it. In these cycles, the dishwasher pauses after it has filled with water, waiting for the water to reach the pre-set temperature. What happens next, depends, as follows: On some units, the pause is timed and the unit continues after the allotted time. On others, the cycle can't continue until the water reaches the higher temperature. If you have this type of dishwasher and the water isn't being heated (say, because of a problem with the heating element or thermostat), after the unit stops at the heating cycle, it never continues. When you repair the heating-system problem, the "cycle problem" is fixed too. Timer Timers don't often fail. But if every other part of the dishwasher seems to be working properly and the timer knob seems to be stuck in one place--doing one function continuously--the timer may be at fault. Dishwasher timers can't be repaired. If yours is defective, replace it.

With scenario i would say yes its the thermostat. With scenario i would say yes its the thermostat.