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potted module troubleshooting
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RELATED FAQS
Question
Answer
What are the differences between the old PCB and the new PWM?
Resolution:
The new potted module ( PWM ) operates with a soft start, gradually increasing the input on time to the pull coil until it is on 100% of the time. This results in less noise when EL solenoid is pul...:
Will the MPB-842 or MPB-840 power EL or QEL devices?
Resolution:
The old MPB842 power supply will power up to two EL electric panic bars but will not power the QEL devices. A defective potted module inside the electric panic bar or defective power supply coul...:
What size wire and run is recommended when using a PS914-2RS?
Resolution:
For Product Shipped Prior to August 2012 using the old (black) potted module:a. 0-100 ft 14 gauge wireb. 0-200 ft 12 gauge wire&nbs...:
What would make the PS914-2RS cycle on and off?
Resolution:
The following could cause the PS914-2RS Power Supply to cycle on and off: The wrong wire gauge or run distance from power supply to the EL device. Click HERE for wiring requirementsOverlo...:
What wire gauge and run is recommended for Von Duprin electric latch retraction EL device?
Resolution:
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Can the EL or QEL conversion kit be used on the old Von Duprin 33/35 exit device?
Resolution:
Current EL and QEL baseplate conversion kits can be used on all latching types of the 33/35 series (non "A" version which were manufactured prior to 2003). At one time, the obsolete black EL ...:
Why does the DC output voltage on the PS914-2RS or PS914-4RL drops when access control is activated?
Resolution:
Following items could cause the DC output on PS914 series power supply to drop when access control is activated. Wrong gauge wire from power supply to the the power transfer. Excessive wire run...:
EL Device Troubleshooting Guide
Resolution:
VISIT US.ALLEGION.COM/EL-SUPPORT FOR TROUBLESHOOTING VIDEO, DOWNLOADABLE GUIDE, AND INSTALLATION INSTRUCTIONS(For best viewing, use Chrome or Firefox browser.)ALLEGION EL SOLENOID ELECTRI...:
Why will my EL 1490 fire my latches but not hold?
Resolution:
One of the following items may cause the EL1490 device to retract then release: Incorrect power supply - Verify you have the PS873-2/4TD or PS914-2RS/4RL power supply. Problems with wire gauge...:
Are the EL wiring harnesses still required with the new potted module?
Resolution:
EL wiring harness is no longer needed with new EL potted modules.:
Is the power to the Von Duprin potted module polarized?
Resolution:
The power to the Von Duprin potted module also called potted circuit breaker is non polarized.:
How do you test the potted circuit breaker or potted module on an EL device?
Resolution:
For Potted Modules (black color) shipped before August of 2012, you can test by applying power to the potted circuit breaker to and if good the following voltages will be seen (be careful...:
Will the PS873-2 operate the EL with new potted module?
Resolution:
The PS873-2 power supply will still operate the EL with new potted module.: