Worcester Bosch Greenstar 42CDi Classic – An ‘EA’ or ‘D5’ code on the display – Boiler Error Code

Boiler Make and Model: Worcester Bosch Greenstar 42CDi Classic
Fault Code: An ‘EA’ or ‘D5’ code on the display
If there are freezing temperatures outside and the boiler is making a gurgling noise then the boiler’s condensate pipe may have frozen.