Error 50 Hot water inlet valve fault. Control board monitors the circuit through the valve back to the board. If it gets a bad reading it flags that error. Error 49 for the cold valve. It can be caused by a bad valve. Bad wiring connection (corrosion on plug) or fault on the control board. Most times unfortunately it is the control board that is faulty. You need someone to come & test & find which part needs replacing.
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Error 50 Hot water inlet valve fault. Control board monitors the circuit through the valve back to the board. If it gets a bad reading it flags that error. Error 49 for the cold valve. It can be caused by a bad valve. Bad wiring connection (corrosion on plug) or fault on the control board. Most times unfortunately it is the control board that is faulty. You need someone to come & test & find which part needs replacing.