Worcester Bosch gas boiler A7: what it means and when to call a pro · South Korea
Severity: Stop nowWorcester Bosch gas boiler error A7. The hot water temperature sensor is faulty or disconnected.
Meaning
The hot water temperature sensor is faulty or disconnected.
Severity
Stop now
Stop. Switch it off and call a pro
Steps are not shown for this code because no qualified person has reviewed them yet. What is safe: switch it off and call a pro.
Source
GREENSTAR HIGHFLOW 440CDi & 550CDi, Worcester, Bosch Group
The repair: Boiler temperature sensor replacement
Prices for repairs in South Korea are in KRW.
Other Worcester Bosch codes
- Worcester Bosch C6 The fan is faulty or is not reaching the correct speed.
- Worcester Bosch E2 A flow or return temperature sensor is faulty or disconnected.
- Worcester Bosch E9 The boiler overheated and the safety thermostat cut it out.
- Worcester Bosch EA The flame went out during operation, or the flame sensor signal is faulty.
- Worcester Bosch 6A The boiler failed to ignite (no flame was detected) and has locked out.
Brands in our catalog for gas boiler: Ariston, Baxi, Bosch, Ferroli, Ideal, Potterton, Vaillant, Viessmann, Worcester Bosch. The same code on another brand is not in the catalog yet, and we do not guess what it means.