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Old 16-10-2012, 09:16   #1
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A/C Issues

I have an A/C sytem in my boat by Ocean Marine which stopped functioning. I don't have a manual but the code that comes up is "HPF". The unit is a SCR5010. OR Can anyone tell me what the code means?
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Old 16-10-2012, 09:25   #2
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Re: A/C Issues

Sorry, don't know what the code means but have you checked all the usual maintenance items?
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Old 16-10-2012, 09:28   #3
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Re: A/C Issues

Yes, it was working fine but just stopped. It may be a blockage in the water line that has to be blown out but if I knew what the code meant it would help. Thanks anyway. I appreciate the response
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Old 16-10-2012, 09:44   #4
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Re: A/C Issues

It means High Pressure Fault.
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Old 16-10-2012, 10:24   #5
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Re: A/C Issues

As the previous poster said, HPF is high pressure fault probably caused by low/no raw water flow or a fouled condenser.

First check for raw water flow overboard. It should be a solid stream. If not check the water pump">raw water pump, they do fail. Also make sure that it is not blocked by an air bubble. Remove the cover on the strainer to make sure good raw water flow is available and try again.

If you are getting decent flow or diminished flow then your condenser is fouled and needs to be acid cleaned. Disconnect the raw water hose from the pump to the condenser at the pump end. Raise it up and pour in a 50/50 mixture of Rydlime, CLR or Barnacle Buster. Drop the hose until you see the level rise but not overflow and leave it there for several hours. Reconnect and flush with raw water.

David
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