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Morning all. I have a Worcester greenstar which keeps giving U codes by counting up to 9. Cannot see these codes in the manual. Any ideas? Cheers
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Discuss U codes on Worcester boilers in the Boilers area at Plumbers Forums
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Never seen that one before. Is it doing anything else? Any noises/low pressure?
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Basically overheats. Turns on, temp shoots up to 90 and starts counting up with the U codes. Either sludge or pump failing me thinks
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- 10,441
Maybe circulation issue then. Does the centrecap
Come out the pump?
Come out the pump?
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Similar plumbing topics
Probably a pressure sensor still involved but...
Or elec bills as it would be running...
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In that case, just get the Mechanical Engineer...
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