It is my understanding that code F33 means that the CCU has not received a signal to shut off the water which would be sent by the pressure switch, the flowmeter has signaled that the tub has received 10.5 gallons and the CCU then shuts off the water and pumps the water out, giving the F33 error code. The instructions are to check the pressure switch, hose, flowmeter, and then the CCU. I replaced the pressure switch, and blew into the hose to verify it was not plugged, no difference. I assume the flowmeter is fine as it obviously sends the signal that 10.5 gallons have entered the tub, so that leaves the CCU. I checked to make sure the electrical connections were all tight and they were. So it looks to me like my CCU needs to be replaced again, 13 months after the last time I had to replace it. I am cusious if anyone has any other ideas before I go to that expense again.
Bob
|