Owner’s Manual
Page - 19 - of 22
15. If the HMX’s are still saturated with water after servicing the HMXs, disconnect the single spade wire from the primer
switch, turn on the power and cool call, wait three (3) minutes (the amount of time the soap would run during normal
startup) then replace the single spade wire on the primer switch. If the HMXs are dry, turn on the power and allow the unit
to go through the programmed wet out procedure.
HMX Face Plate Cleaning, Only If Needed
NOTE! In some cases it may be necessary to service the HMX face plate and nipples. Blockage of the HMX face plate can
be caused by soap being introduced into the system with no water. If you suspect your unit has had surfactant introduced into
the system with no water, complete the below steps to clean hardened soap out the HMX nipples.
CAUTION! Do not proceed with steps 9 through 12 before reading the above note. Frequent service of the header
assembly and HMX nipples can cause water leaking at the header and damage to the HMX.
CAUTION! Exercise care when removing water supply tubing from HMX nipples and header assembly to prevent damage
to the HMX. Damage to the HMX nipples will cause you to have to replace the entire HMX.
Power to Soap Pump
Primer Switch
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