Fault Finding - Bosch Worcester Greenstar Ri ErP + Series User Instructions

Malfunction or failure
6.1

Fault finding

Problem Cause
Operation/fault light No gas supply/low gas supply pressure
(blue) flashing
Condensate outlet blocked
Flue blocked
Desired room Thermostatic radiator valve(s) set too low
temperature is not
Temperature control for central heating flow on
reached
appliance set too low
Low temperature setting on the room thermostat
Radiators are too Temperature control for central heating flow on
hot appliance set too high
Desired room Thermostatic radiator valve(s) are set too high
temperature is too
high
Room thermostat is set too high
Heating stays on for Clock is incorrectly set
too long
No blue Operation/ Momentary power failure
Fault Indicator
Hot water Temperature set too low on cylinder thermostat
temperature too low control.
Hot water Temperature set too high on cylinder thermostat
temperature too control.
high
Table 4 Fault finding
14
Remedy
▶ Contact your gas supplier.
▶ If it is safe to do so, check your condensate pipe
outlet for blockages, such as ice or foreign
objects.
▶ If it is safe to do so, check your flue outlet for
damage or blockages.
▶ Increase thermostatic radiator valve setting(s).
▶ Increase central heating flow temperature
control setting
▶ Increase settings on room thermostat
▶ Reduce central heating temperature by turning
down the Central Heating control on appliance.
Note: This could prevent your property reaching
the desired temperature during cold weather
periods.
▶ Turn down thermostatic radiator valves/room
thermostat
▶ Turn down room thermostat.
▶ Check setting and adjust
▶ Disconnect appliance supply, wait a few seconds
then reconnect.
▶ Check setting and adjust
▶ Check setting and adjust
Greenstar Ri ErP + - 6 720 821 669 (2018/06)