Seeing 2H on an older Bosch dishwasher does not mean a failure in the usual sense. The two-digit display cannot show a cycle length over 99 minutes as a number, so it prints 2H instead. Bosch's…
Seeing 2H on an older Bosch dishwasher does not mean a failure in the usual sense. The two-digit display cannot show a cycle length over 99 minutes as a number, so it prints 2H instead. Bosch's notes tie the long run to cold supply water or a heating problem, and list five suspects: the heater, its overheat thermostat, the flow switch, the NTC sensor and the control board's heater relay.
1. Let the kitchen hot tap run until it is truly hot. 2. Start the dishwasher right away. 3. This design warms the fill water itself rather than waiting for it, so a cold start can push a cycle beyond what the display shows. 4. If 2H returns after a hot start, call us.
Not necessarily. It tells you the cycle ran long. A cold water supply can cause it, and so can a heating part, so the hot tap test is the sensible first step.
If 2H disappears when you run the hot tap first, the supply was the cause. If it stays, a heating part is likely, and we diagnose which.
Yes, it keeps washing, just slowly. Long cycles waste water and power, so it is worth having the heating checked, and we give you a written price first.
A technician diagnoses it on site and gives you the price in writing before any work starts.