Tech Tip - What is an 0A Error Code?
Posted By DEMILEC
An 0A error code on an Reactor Series proportioning unit simply means that
the machine has lost communication to the FTS (Fluid Temperature Sensor).
This kind of reading is displayed if the FTS is disconnected at startup
or if there is an issue with the FTS or TC (thermocouple-purple) wire.
The machine does not recognize the sensor and is in amperage mode.
0A stands for ZERO amperage. If you are on a spray job and only have a
small amount to complete, you can continue to use your equipment in “manual
hose heat” mode, by pressing the UP arrow on the temperature display
board, you will see that the 0A will allow you to adjust up to 45 amps.
Depending on the length of hose and temperature desired, select the amperage
and use a backstab thermometer along side the butyl jacket lining of the
hose as near as possible to the gun without puncturing the hose. This
way you can have an accurate reading as to what your hose temperature
really is allowing you to spray good foam. This should be done only as
a temporary fix until you can resolve the issue and replace the part(s)
As always read, understand and follow all instruction manuals and warning
labels supplied with all equipment. Only trained and qualified personnel
should perform repairs on the equipment. To access the latest equipment