Question about Fisher and Paykel IWL12 Top Load Washer

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Fault code 37 on an iwl16 machine? can't find a definition of what it means.

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Code 37 means the pump is not pumping the water out. This may be the result of several things. For instance ask yourself what did I just wash. In our case, we had just attempted to wash a bath mat with crumbling rubber backing. Apparently the pump picked up the little pieces of rubber and they became impacted in the valve underneath. I was a lead aircraft mechanic for United Airlines and have dealt with some of the most sophisticated machines on the planet. I have always been impressed with our Fisher Paykel IWL16, the salesman sold us on the functions of this machine. He also told us about the technology incorporated into it. The elimination of the transmission and other moving parts and that FP had incorporated the philosophy of the minimum moving parts throughout the machine. So, I might have been a little intimidated about working on it because it appears to be very sophisticated. That is until I laid it over on its side and took a look underneath. My mouth dropped open There are 4 moving parts. The motor assembly that is connected to the drum and agitator. The water pump which siphons the water off the bottom of the tank and a 2 way valve that directs the water back into the tub or overboard. There is probably a fill valve in there somewhere that is at the top of the tub. Anyway I decided to try the 2 way valve first. Make sure the you have fully disconnected the machine before trying any of this. First I disconnected the two orange wires off of the 2 way valve and pay attention to which wire goes where (mark one with a marking pen). Then Squeeze the clamps on the three hose connections to the valve and back them up the hoses. Take one more look at how the valve is installed because you could put it in backwards. There is a screw and clamp holding the valve to the bottom of the tub. Remove the screw. Take the hoses off the valve and remove the Valve. Look inside and you will probably see what ever is blocking the Valve. Don't go digging around in there since there are O'ring seals on the flapper door that could get damaged. I used the eraser end of a pencil to clear the junk out of it. I then rinsed the valve out of the rest of the junk (take care not to get the electrical motor and contacts wet. They are covered with a clear plastic cover for a reason. Make sure the ends of the hoses are also clear and then reinstall the valve, hoses (3) and the (3) hoses clamps, Clamp and screw to the whole assembly to the bottom of the tub. Connect the two Orange wires to their respective connections and wha-laa... your done. Flip the washer back up and connect it up to the hoses and plug it in... Run the Machine through the tub cleaning cycle and that should do the trick... If this sounds like it might be difficult, it isn't. Tip over your machine and look at it before you call the serviceman and you might save a couple of hundred. The water pump also looked similarly easy to replace... a new pump is 98 dollars. I love my Fisher Paykel

Posted on Jul 13, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Code 37 -


To my knowledge, Error Code 37 on a Fisher & Paykel machine refers to "drain fault" which could either mean that the drain valve will not open or that the drain pump will not run. The easiest user intervention that could be performed is to check for any blockage/clog at the drain filter, drain pipe, drain pump impeller and drain valve.

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I w 812

Here are some details for fault code 37
(00100101) Pump Blocked Error (No change in the water level)
While draining, the water level reading from the pressure sensor has not changed for over 3 minutes. There are three likely reasons for this fault. One is that the drain hose or the pressure switch hose has been squashed or kinked and the pump out rate has been dramatically reduced. The second possibility is that the pump is partially or fully blocked. The third is that the pump is not operating due to Motor Control Module, wiring or pump failure. This fault could also appear if the machine is pumping to an unusually high head of drain hose or into an extended length of drain hose. The fourth possibility is a diverter valve fault or blockage, water level is not altering as the diverter is stuck in the recirculation mode, giving the module the appearance the pump is not lowering the water level.
Primary Source:
Pump System.
Check that the drain hose has not been kinked.
2) Check the length of the drain hose and try to reduce the length if
excessively long. A 39.36in / 1 metre extension hose of the same diameter fitted to the existing drain hose is the maximum allowable length.
3) Check for open circuit windings in the pump. (Note: Pumps are
fitted with a thermal cut-out, which will reset on cooling.)
4) If the basket is empty of water, remove the pump from the pump
housing and check that it is not blocked. Also check the drain hose is not blocked.
5) If the basket contains water, then service the pump from the top of
the machine by removing the top deck and inner basket. Bail out the water, remove the pump cap and hood and clear the restriction.
Secondary Source: Wiring.
Tertiary Source:
1) Check the pump harness is connected correctly to the pump. 2) Check continuity of the pump harness.
Motor Control Module module.
Activate the pump by operating the machine in spin mode. Check the pump is rotating. If it is not operating, and Primary and Secondary checks have been performed, then replace the Motor Control Module.

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