Error codes are the indicators of the problems inside the water heater.
Bosch on demand water heater error codes.
Enjoy peace of mind and savings with highly efficient and versatile water heaters from bosch.
Bosch continuous flow hot water units are all fitted with an inlet and outlet sensor.
Bosch manufactures a line of tankless water heaters.
The heating element is covered under warranty for a period of five years.
In more advanced cases e9 may be accompanied by e1 a7 and or banging or knocking noises when heater is operating.
When your bosch hot water system displays fault code a7 on its temperature control monitor it indicates that you have a faulty hot water outlet temperature sensor.
Electric storage water heaters.
Gas tankless and electric water heaters from bosch.
May indicate scale build up in heat exchanger.
All other parts are covered under a one year warranty.
Turn off power to heater and run cold water through heater for several minutes.
If open no resistance replace limiter.
When the error code appears on the bosch heater s lcd display the reset button sometimes.
High efficiency gas tankless water heaters from bosch.
Jim s arranged swiftly as laurence on site finished the job in 24 hours providing the rainy weather.
Check continuity through temperature limiter.