What does the Worcester Bosch 200 O fault code mean?

Your boiler is working normally and is currently heating up your radiators.

How much does it cost to fix Worcester Bosch error code 200 O?

Cost varies. Contact a Gas Safe registered engineer for a quote.

Worcester Bosch 200 O Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

Boiler in heating mode

Shared across the Greenstar 8000 Life range

This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.

What causes this fault?

This is a normal operational status and not a mechanical fault or failure. It appears when your thermostat or programmer has requested warmth, signaling the boiler to ignite the burner and circulate hot water to your radiators. You may see this code frequently during colder periods as the system works to maintain your target indoor temperature.

You will see this code more regularly during the autumn and winter months when your central heating is scheduled to be active.

DIY fix possible

This fault may be fixable without an engineer. Check your manual first.

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Related fault codes

201View →202View →305View →

All 151 fault codes on the Greenstar 8000 Life Combi

Seeing a different code? Every code this model can display, in one place.

1-A1 1-A2 1-A3 1-A5 1-A6 1-A7 1-b2 1-b3 1-b4 1-b7 1-b8 1-C1 1-C2 1-C4 1-C6 1-d1 1-d2 1-d3 1-d4 1-d5 1-E1 1-E2 1-E3 1-E4 1-EA 1-Eb 200 201 201 O 202 202 O 203 204 204 O 208 214 224 224 V 227 227 V 228 228 V 229 232 233 234 235 237 238 242 244 245 249 250 251 252 253 254 257 258 259 262 263 265 268 269 273 281 283 284 305 306 306 V 357 358 360 360 V 362 363 604 815 1010 1010 O 1013 1017 1017 W 1018 1019 1021 1021 B 1023 1025 1037 1037 W 1065 1065 B 1068 1068 W 1070 1071 1072 1075 1075 W 1076 1076 W 2085 2908 2910 2914 2915 2916 2920 2920 V 2923 2924 2925 2926 2928 2931 2940 2946 2946 V 2948 2948 B 2949 2950 2950 B 2951 2952 2955 2956 2957 2961 2962 2963 2963 B 2965 2965 B 2966 2966 B 2968 2969 2970 2970 B 2971 2971 B 2972 A-A5 A-b2 A-b4

Your boiler is working normally and is currently heating up your radiators.

What the manual says

What causes this fault?

DIY fix possible

Avoid the next call-out bill

Related fault codes

All 151 fault codes on the Greenstar 8000 Life Combi

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