BoilerFaultCodes.com

Worcester Bosch RD 532i RD Fault Codes

Combi Natural GasLPG 32 kW 1994-2003 Discontinued
GC Number: 47-311-37

Replaced by: Greenstar i

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Most common fault codes

A1
Your boiler has detected that there is not enough water circulating through the system or there is air trapped in the internal pump.
May be DIY safe · £80-250
A8
Your boiler's internal components are having trouble communicating with the main control board, preventing the system from starting up.
Gas Safe engineer required · £180-450
B1
Your boiler's internal computer brain cannot find its identity chip, which prevents it from operating safely.
Gas Safe engineer required · £120-£250

All 19 fault codes

Code Severity Plain English
A1 High Your boiler has detected that there is not enough water circulating through the system or there is air trapped in the internal pump.
A7 Medium Your boiler is struggling to accurately measure the temperature of your hot water, which usually means it cannot provide a consistent supply to your taps.
A8 High Your boiler's internal components are having trouble communicating with the main control board, preventing the system from starting up.
B1 High Your boiler's internal computer brain cannot find its identity chip, which prevents it from operating safely.
C1 High Your boiler's fan is not spinning fast enough to safely clear away exhaust fumes, causing the system to shut down for safety.
C4 High Your boiler's fan is running constantly and won't shut down, preventing the system from finishing its normal cycle or restarting correctly.
C6 High Your boiler's fan is spinning faster than it should, which is preventing the system from safely managing the air and gas flow needed for heating.
CC Low Your boiler has lost connection with its outdoor temperature thermometer, so it does not know how hard it needs to work to heat your home.
D3 High Your boiler has shut down because its internal safety sensor has detected that the system is getting dangerously hot.
E2 High Your boiler has detected a fault with a temperature sensor that monitors the water sent to your radiators, meaning it cannot safely regulate your heating.
E9 High Your boiler has sensed that the water inside is getting too hot and has shut itself down to prevent damage.
EA High Your boiler has tried to light several times but cannot detect a flame, meaning it has locked itself out for safety.
F0 High Your boiler's internal computer has encountered a critical electronic glitch and cannot communicate with the system components.
F7 High Your boiler thinks a flame is still burning even after it has been told to turn off, which is a safety conflict that stops the system from running.
FA High Your boiler is still detecting a flame even though the gas should have been turned off, which is a safety conflict preventing the system from running.
FC Medium Your boiler's control panel and internal computer are having trouble communicating with the digital display screen.
Fd Low Your boiler has stopped because the reset button was held down for too long or pressed by mistake, causing a minor software confusion.
No code displayed High Your boiler has likely overheated because the gases exiting the system are too hot, causing a safety sensor to automatically shut it down.
P1, P2, P3, P1... Low Your boiler is currently going through a standard startup routine or resetting itself after a power interruption.

Worcester Bosch RD 532i RD is discontinued — time for a new one?

Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.

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