POLYURETHANE
MACHINERY
CORPORATION
PH-2 SERVICE MANUAL
12. TROUBLESHOOTING
12.1 HEATERS
WARNING! Only qualified personnel should perform troubleshoot-
ing; unqualified personnel may cause damage to the unit, personnel,
or property and put the operator at risk. The Heaters are compo-
nents that reach high temperatures; you must wait until they cool
before handling.
NOTE! The Thermal Limit Switch is a safety switch in contact with
the Heater Body. If the surface temperature exceeds 220
◦
F (109
◦
C)
the Limit Switch will shut off the Heater power. The Limit Switch
will not re-set until the temperature in the Heater is below 190
◦
F
(88
◦
C). The system is designed that in case of an over temperature,
a contactor located in the console will open and disable power to
both Heaters and the Hose.
Frequent Heater Problems
Primary heater does not heat and the display on the controller shows am-
bient temperature.
Page 34
Primary heater does not heat and the display on the controller shows an
error message (SbEr, EEPE, CjEr, AdEr).
Page 35
Primary heater controller shows excessive temperature and the circuit has
turned off.
Page 35
Primary heater Temperature drops excessively while spraying. Page 35
Follow the recommended procedure in the indicated order to solve the problem and avoid
unnecessary repairs. Make sure all Switches are in the correct position and Indicator Lights
ON before determining the existence of a fault.
REVISION 1.2 33
To Next Page
Loading...
