Pump Blocked Error (No Change In The Water Level) - Fisher & Paykel SmartDrive Service Manual

37. (00100101) Phase 1 to 6 - Pump Blocked Error (No
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 SmartDrive 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. The 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:
Action:
Secondary Source: Wiring.
Action:
Change in the Water Level)
Pump System.
1. 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 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
that will reset on cooling.)
4. If the bowl 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 bowl contains water, then service the
pump from the top of the SmartDrive by
removing the top deck and inner bowl. Bail
out the water, remove the pump cap and hood
and clear the restriction.
1. Check the pump harness is connected
correctly to the pump.
2. Check continuity of the pump harness.
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