Bosch Greenstar Ri Compact Instruction Manual download pdf (Page 12)

Fault finding

Greenstar Ri Compact

ErP

- 6 720 813 339 (2014/09)

7Fault finding

In the event that the boiler stops functioning or does not perform as expected, you can carry out a few simple checks. These checks

are some of the most common causes of apparent faults and are listed in the table below. Should the problem persist or other alert

codes are displayed, then it will be necessary to contact Worcester, Bosch Group.

Problem Cause Remedy

Operation/fault light

(blue) flashing

No gas supply/low gas supply pressure ▶ Contact your gas supplier.

Condensate outlet blocked

▶ If it is safe to do so, check your condensate pipe

outlet for blockages, such as ice or foreign

objects.

Flue blocked

▶ If it is safe to do so, check your flue outlet for

damage or blockages.

Desired room

temperature is not

reached

Thermostatic radiator valve(s) set too low

▶ Increase thermostatic radiator valve setting(s).

Temperature control for central heating flow on

appliance is set too low

▶ Increase central heating flow temperature

control setting

Low temperature setting on the room thermostat

▶ Increase setting on the room thermostat.

Radiators are too

hot

Temperature control on appliance set too high ▶ 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.

Desired room

temperature is too

high

Thermostatic radiator valve(s) are set too high

▶ Turn down thermostatic radiator valves/room

thermostat

Room thermostat is set too high

▶Turn down room thermostat.

Heating stays on for

too long

Clock is incorrectly set ▶ Check setting and adjust

No blue Operation/

Fault Indicator

Momentary power failure ▶ Disconnect boiler supply, wait a few seconds

then reconnect.

Hot water

temperature too low

Temperature set too low on cylinder thermostat

control.

▶ Check setting and adjust

Hot water

temperature too

high

Temperature set too high on cylinder thermostat

control.

▶ Check setting and adjust

Table 3 Fault finding

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 18 19 20

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Bosch Greenstar Ri Compact Instruction Manual Page 12

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